Alternating background color

Got a dataset that is used to populate a table. Want to alternate the
background color on every other row in the displayed detail group. Easy
enough right? Here's the catch: the output is grouped at display time. A
query output might be:
KEY Value1 Value2
A 0 1
A 1 0
B 5 0
C 3 0
C 0 7
etc...
The DISPLAY output is grouped on the KEY, and the two values are summed to
give me a display such as:
KEY Value1 Value2
A 1 1
B 5 0
C 3 7
Problem. When I use the standard "=iif(RowNumber(Nothing) MOD 2, "White",
"Grey")", it counts EVERY row returned from the original query, not the
grouped output, so I don't get a uniform white-grey-white pattern. Anyone
know a workaround for this?
TIA,
BrianOk, I found my workaround. Someone is bound to have this issue sometime in
the future, so I'll put the workaround here.
I created a little routine in the custom Code area of the report that simply
toggles and returns an integer value:
Dim Public bgColor As Integer = 0
Public Function alternateColor As Integer
If bgColor = 0
bgColor = 1
return bgColor
else
bgColor = 0
return bgColor
end if
End Function
When i put my method call in the background color on the entire table ROW,
the result was alternating COLUMN colors. This is because the method was
called for every cell (column) in the row. In order to get alternating ROW
color, I only called the alternateColor routine in the FIRST column in the
table row (iif(Code.alternateColor() = 0, "white", "grey")). Each subsequent
column in the row would simply check the "Code.bgColor" value for its
current value, and base its color on that (iif(Code.bgColor = 0, "white",
"grey")).
Maybe this will come in handy for someone else someday....
Brian
"G" <brian.grant@.si-intl-kc.com> wrote in message
news:OSJrwjtYFHA.1152@.tk2msftngp13.phx.gbl...
> Got a dataset that is used to populate a table. Want to alternate the
> background color on every other row in the displayed detail group. Easy
> enough right? Here's the catch: the output is grouped at display time. A
> query output might be:
> KEY Value1 Value2
> A 0 1
> A 1 0
> B 5 0
> C 3 0
> C 0 7
> etc...
> The DISPLAY output is grouped on the KEY, and the two values are summed to
> give me a display such as:
> KEY Value1 Value2
> A 1 1
> B 5 0
> C 3 7
> Problem. When I use the standard "=iif(RowNumber(Nothing) MOD 2, "White",
> "Grey")", it counts EVERY row returned from the original query, not the
> grouped output, so I don't get a uniform white-grey-white pattern. Anyone
> know a workaround for this?
> TIA,
> Brian
>|||Great solution, I've been playing around with RowNumber for ages - this is
much better!!!
Thanks Brian!!!
"G" wrote:
> Ok, I found my workaround. Someone is bound to have this issue sometime in
> the future, so I'll put the workaround here.
> I created a little routine in the custom Code area of the report that simply
> toggles and returns an integer value:
> Dim Public bgColor As Integer = 0
> Public Function alternateColor As Integer
> If bgColor = 0
> bgColor = 1
> return bgColor
> else
> bgColor = 0
> return bgColor
> end if
> End Function
> When i put my method call in the background color on the entire table ROW,
> the result was alternating COLUMN colors. This is because the method was
> called for every cell (column) in the row. In order to get alternating ROW
> color, I only called the alternateColor routine in the FIRST column in the
> table row (iif(Code.alternateColor() = 0, "white", "grey")). Each subsequent
> column in the row would simply check the "Code.bgColor" value for its
> current value, and base its color on that (iif(Code.bgColor = 0, "white",
> "grey")).
> Maybe this will come in handy for someone else someday....
> Brian
> "G" <brian.grant@.si-intl-kc.com> wrote in message
> news:OSJrwjtYFHA.1152@.tk2msftngp13.phx.gbl...
> > Got a dataset that is used to populate a table. Want to alternate the
> > background color on every other row in the displayed detail group. Easy
> > enough right? Here's the catch: the output is grouped at display time. A
> > query output might be:
> >
> > KEY Value1 Value2
> > A 0 1
> > A 1 0
> > B 5 0
> > C 3 0
> > C 0 7
> >
> > etc...
> >
> > The DISPLAY output is grouped on the KEY, and the two values are summed to
> > give me a display such as:
> >
> > KEY Value1 Value2
> > A 1 1
> > B 5 0
> > C 3 7
> >
> > Problem. When I use the standard "=iif(RowNumber(Nothing) MOD 2, "White",
> > "Grey")", it counts EVERY row returned from the original query, not the
> > grouped output, so I don't get a uniform white-grey-white pattern. Anyone
> > know a workaround for this?
> >
> > TIA,
> >
> > Brian
> >
>
>|||This was just what i was looking for. My returned dataset sometimes Groups
so that rownumbers aren't in a consecutive order, giving some strange
alternate highlighting results using the conventional method. This should
work nicely, cheers
"G" wrote:
> Ok, I found my workaround. Someone is bound to have this issue sometime in
> the future, so I'll put the workaround here.
> I created a little routine in the custom Code area of the report that simply
> toggles and returns an integer value:
> Dim Public bgColor As Integer = 0
> Public Function alternateColor As Integer
> If bgColor = 0
> bgColor = 1
> return bgColor
> else
> bgColor = 0
> return bgColor
> end if
> End Function
> When i put my method call in the background color on the entire table ROW,
> the result was alternating COLUMN colors. This is because the method was
> called for every cell (column) in the row. In order to get alternating ROW
> color, I only called the alternateColor routine in the FIRST column in the
> table row (iif(Code.alternateColor() = 0, "white", "grey")). Each subsequent
> column in the row would simply check the "Code.bgColor" value for its
> current value, and base its color on that (iif(Code.bgColor = 0, "white",
> "grey")).
> Maybe this will come in handy for someone else someday....
> Brian
> "G" <brian.grant@.si-intl-kc.com> wrote in message
> news:OSJrwjtYFHA.1152@.tk2msftngp13.phx.gbl...
> > Got a dataset that is used to populate a table. Want to alternate the
> > background color on every other row in the displayed detail group. Easy
> > enough right? Here's the catch: the output is grouped at display time. A
> > query output might be:
> >
> > KEY Value1 Value2
> > A 0 1
> > A 1 0
> > B 5 0
> > C 3 0
> > C 0 7
> >
> > etc...
> >
> > The DISPLAY output is grouped on the KEY, and the two values are summed to
> > give me a display such as:
> >
> > KEY Value1 Value2
> > A 1 1
> > B 5 0
> > C 3 7
> >
> > Problem. When I use the standard "=iif(RowNumber(Nothing) MOD 2, "White",
> > "Grey")", it counts EVERY row returned from the original query, not the
> > grouped output, so I don't get a uniform white-grey-white pattern. Anyone
> > know a workaround for this?
> >
> > TIA,
> >
> > Brian
> >
>
>|||This didn't work for me since I am setting a row to hidden based on a value
in that row. SQL RS thinks that row is still there and displays two back to
back colors instead of alternating the colors.
Any ideas?
Thanks,
Don
"G" wrote:
> Ok, I found my workaround. Someone is bound to have this issue sometime in
> the future, so I'll put the workaround here.
> I created a little routine in the custom Code area of the report that simply
> toggles and returns an integer value:
> Dim Public bgColor As Integer = 0
> Public Function alternateColor As Integer
> If bgColor = 0
> bgColor = 1
> return bgColor
> else
> bgColor = 0
> return bgColor
> end if
> End Function
> When i put my method call in the background color on the entire table ROW,
> the result was alternating COLUMN colors. This is because the method was
> called for every cell (column) in the row. In order to get alternating ROW
> color, I only called the alternateColor routine in the FIRST column in the
> table row (iif(Code.alternateColor() = 0, "white", "grey")). Each subsequent
> column in the row would simply check the "Code.bgColor" value for its
> current value, and base its color on that (iif(Code.bgColor = 0, "white",
> "grey")).
> Maybe this will come in handy for someone else someday....
> Brian
> "G" <brian.grant@.si-intl-kc.com> wrote in message
> news:OSJrwjtYFHA.1152@.tk2msftngp13.phx.gbl...
> > Got a dataset that is used to populate a table. Want to alternate the
> > background color on every other row in the displayed detail group. Easy
> > enough right? Here's the catch: the output is grouped at display time. A
> > query output might be:
> >
> > KEY Value1 Value2
> > A 0 1
> > A 1 0
> > B 5 0
> > C 3 0
> > C 0 7
> >
> > etc...
> >
> > The DISPLAY output is grouped on the KEY, and the two values are summed to
> > give me a display such as:
> >
> > KEY Value1 Value2
> > A 1 1
> > B 5 0
> > C 3 7
> >
> > Problem. When I use the standard "=iif(RowNumber(Nothing) MOD 2, "White",
> > "Grey")", it counts EVERY row returned from the original query, not the
> > grouped output, so I don't get a uniform white-grey-white pattern. Anyone
> > know a workaround for this?
> >
> > TIA,
> >
> > Brian
> >
>
>

Alternating BackColor

Hi
I wand to use an Alternating Backcolor in a Report for every Row. In don't
find this property.
How can i do it?
Many thanks.
AndyHi,
There is no property to do this
Here is the post replied by Bruce Johnson [MSFT]
Hope this helps
At the end of this posting are two reports that demonstrate how to alternate
row colors on a table and a matrix.
--
Bruce Johnson [MSFT]
Microsoft SQL Server Reporting Services
This posting is provided "AS IS" with no warranties, and confers no rights.
"Christian Larsen" <ChristianLarsen@.discussions.microsoft.com> wrote in
message news:608EB056-430E-44A2-AD02-1621CA41FC3F@.microsoft.com...
> Hi all.
> How do i get a different color on odd rows in a table or matrix?
> /Chrsitian
TableGreenBar.rdl
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<PaddingTop>2pt</PaddingTop>
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MatrixGreenBar.rdl
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</Field>
<Field Name="Qty">
<DataField>Qty</DataField>
<rd:TypeName>System.Int32</rd:TypeName>
</Field>
<Field Name="CategoryName">
<DataField>CategoryName</DataField>
<rd:TypeName>System.String</rd:TypeName>
</Field>
</Fields>
<Query>
<DataSourceName>Northwind</DataSourceName>
<CommandText>SELECT Customers.Country, SUM([Order
Details].Quantity) AS Qty, Categories.CategoryName
FROM Customers INNER JOIN
Orders ON Customers.CustomerID = Orders.CustomerID
INNER JOIN
[Order Details] ON Orders.OrderID = [Order
Details].OrderID INNER JOIN
Products ON [Order Details].ProductID =Products.ProductID INNER JOIN
Categories ON Products.CategoryID =Categories.CategoryID
GROUP BY Customers.Country, Categories.CategoryName</CommandText>
</Query>
</DataSet>
</DataSets>
<LeftMargin>1in</LeftMargin>
<rd:SnapToGrid>true</rd:SnapToGrid>
<rd:DrawGrid>true</rd:DrawGrid>
<Description />
<rd:ReportID>ab2c120b-3169-427d-8ad6-b8716f8c5101</rd:ReportID>
<BottomMargin>1in</BottomMargin>
</Report>
"Andreas Szabo" <Andreas.Szabo_PLEASE_INSERT_ADD_complementa.ch> wrote in
message news:O%23rS43yuEHA.2196@.TK2MSFTNGP14.phx.gbl...
> Hi
> I wand to use an Alternating Backcolor in a Report for every Row. In don't
> find this property.
> How can i do it?
> Many thanks.
> Andy
>

Alternate rows from different table

Dear All,
I have a requirement in which I have to display a row from one
table & the corresponding row from the another table. e.g. say there
are 2 tables T1 & T2. Suppose there is a record in T1 say R1 & the
corresponding record in T2 as R1' then the display would come as
R1 /* Data from Table 1 */
R1' /* Data from Table 2 */
R2
R2'
& so on.....
This is possible by manipulating the resultset in a program. But I
would like to know if it is possible in the SQL query.
Thanks & Regards,
Praveenpkb wrote:

> Dear All,
> I have a requirement in which I have to display a row from one
> table & the corresponding row from the another table. e.g. say there
> are 2 tables T1 & T2. Suppose there is a record in T1 say R1 & the
> corresponding record in T2 as R1' then the display would come as
> R1 /* Data from Table 1 */
> R1' /* Data from Table 2 */
> R2
> R2'
> & so on.....
> This is possible by manipulating the resultset in a program. But I
> would like to know if it is possible in the SQL query.
> Thanks & Regards,
> Praveen
Looks like a UNION to me. Assuming r is the common column that
determines R1, R2, etc, try:
SELECT r, col1, col2, ...
FROM
(SELECT r, 1 AS tbl, col1, col2, ...
FROM tbl1
UNION ALL
SELECT r, 2 AS tbl, col1, col2, ...
FROM tbl2) AS T
ORDER BY r, tbl ;
If that's not what you wanted then my signature explains how to post
better questions so that you can get better answers. :-)
David Portas, SQL Server MVP
Whenever possible please post enough code to reproduce your problem.
Including CREATE TABLE and INSERT statements usually helps.
State what version of SQL Server you are using and specify the content
of any error messages.
SQL Server Books Online:
http://msdn2.microsoft.com/library/ms130214(en-US,SQL.90).aspx
--|||"pkb" <praveen.bhushan@.gmail.com> wrote in message
news:1138803314.265069.114980@.g49g2000cwa.googlegroups.com...
> Dear All,
> I have a requirement in which I have to display a row from one
> table & the corresponding row from the another table. e.g. say there
> are 2 tables T1 & T2. Suppose there is a record in T1 say R1 & the
> corresponding record in T2 as R1' then the display would come as
> R1 /* Data from Table 1 */
> R1' /* Data from Table 2 */
> R2
> R2'
> & so on.....
> This is possible by manipulating the resultset in a program. But I
> would like to know if it is possible in the SQL query.
> Thanks & Regards,
> Praveen
You could:
select 1 AS rank, ... from T1 where ...
union
select 2 AS rank, ... from T2 where ...
Order by (you will have to add the corresponding columns, whatever that is),
rank
Sorry, can't give you anything more detailed without your table structure.|||Hi David, Raymond,
Thanks for your quick replies. The only problem in the above
solution will come when there is a record which is present in
one of the tables. Actually I wanted to make pairs from the two tables.
Well I have got the idea.
Regards,
Praveen

alternate row in table

I have a table with a header and a detail. How I can set the detail so that
it displays alternate color? Thanks.Try this:
=IIF(RowNumber(Nothing) Mod 2,"WhiteSmoke", "White")
WhiteSmoke and White being the two variable colors.
Select the detail row and in the background properties select "Expression".
Then put that formula in.
Cheers.
"tangolp" wrote:
> I have a table with a header and a detail. How I can set the detail so that
> it displays alternate color? Thanks.|||I have used this but I condionally set a row to hidden based on a value.
When a row is hidden SQL RS thinks it's still there and I get two back to
back colors. Any ideas how to fix this?
Thanks,
Don
"Michael Montgomery" wrote:
> Try this:
> =IIF(RowNumber(Nothing) Mod 2,"WhiteSmoke", "White")
> WhiteSmoke and White being the two variable colors.
> Select the detail row and in the background properties select "Expression".
> Then put that formula in.
> Cheers.
> "tangolp" wrote:
> > I have a table with a header and a detail. How I can set the detail so that
> > it displays alternate color? Thanks.

Alternate row in diffrerent colors

Hi,
I wish to change the back colour for alternate rows in a report (say Table).
I haven't found anything that tells me the current-rownum. The RowNum seems
more like a row-count. Please help!!
Thanks in advance,
Regards,
DattaTo have alternating colours in a table, use this formula
=iif(RowNumber(Nothing) Mod 2, "Gainsboro", "White")
A slightly more refined version can be found in Adlai Maschiach's blog:
http://dotnetjunkies.com/WebLog/adlaim/archive/2004/08/29/23594.aspx
This is the way to do it if you want to control the alternating colours in a
table with groups, as the first one will not take groupings into
consideration.
To do it in a matrix, you need to do it like Chris Hays writes
http://blogs.msdn.com/chrishays/archive/2004/08/30/GreenBarMatrix.aspx
Kaisa M. Lindahl Lervik
"Datta" <Datta@.discussions.microsoft.com> wrote in message
news:5FC4A7F0-B950-4F0C-A726-D383AC381960@.microsoft.com...
> Hi,
> I wish to change the back colour for alternate rows in a report (say
> Table).
> I haven't found anything that tells me the current-rownum. The RowNum
> seems
> more like a row-count. Please help!!
> Thanks in advance,
> Regards,
> Datta

Alternate row colors by group

I have a report in which the results are grouped. For example, the report
returnd 25 rows, the first 5 rows are one group (lets say all 'A's, the
second 5 rows are another group (lets say all 'B's), etc...
Can I add conditional formatting to alternate the backgroup color based on
groups?
I know I can alternate row colors using:
=iif(RowNumber(Nothing) Mod 2, "WhiteSmoke", "White")
But I want to alternate by group. Is that possible and if so, how?
Thanks,I had a similar requirement recently but could find nothing in help or on the
net. I wrote this embedded code which works for me but I'm curious if there's
a simpler way.
Add this to the report's embedded code window:
Public GroupRowCounter As Integer = 0
Function IncrementCounter() As Integer
GroupRowCounter += 1
Return GroupRowCounter
End Function
Function GetCounter() As Integer
Return GroupRowCounter
End Function
Right click the header row you want the alternate coloring in and select
Insert Row Above. In the new, topmost header row set the Hidden property to
True and add this to one of the cells:
=Code.IncrementCounter
For the header/detail/footer portions of the group that will be visible, add
this to the BackgroundColor property to alternate the row (group) colors:
=IIF(Code.GetCounter Mod 2, "WhiteSmoke", "White")
"BillTWD" wrote:
> I have a report in which the results are grouped. For example, the report
> returnd 25 rows, the first 5 rows are one group (lets say all 'A's, the
> second 5 rows are another group (lets say all 'B's), etc...
> Can I add conditional formatting to alternate the backgroup color based on
> groups?
> I know I can alternate row colors using:
> =iif(RowNumber(Nothing) Mod 2, "WhiteSmoke", "White")
> But I want to alternate by group. Is that possible and if so, how?
> Thanks,|||If you're grouping on Country, this is the code to use.
=Iif(RunningValue(Fields!Country.Value,CountDistinct, Nothing) Mod 2,
"LightGreen", "Cornsilk")
Mike Glaser
"BillTWD" wrote:
> I have a report in which the results are grouped. For example, the report
> returnd 25 rows, the first 5 rows are one group (lets say all 'A's, the
> second 5 rows are another group (lets say all 'B's), etc...
> Can I add conditional formatting to alternate the backgroup color based on
> groups?
> I know I can alternate row colors using:
> =iif(RowNumber(Nothing) Mod 2, "WhiteSmoke", "White")
> But I want to alternate by group. Is that possible and if so, how?
> Thanks,

alternate row color in groups

Hi:
I am trying to alternate row colors within groups, and I do this
<BackgroundColor>=iif(RunningValue(Fields!Country.Value,CountDistinct,Nothin
g) Mod 2, "Cornsilk", "White")</BackgroundColor>
but the problem is my country field has duplicates, and the color is
not alternating in such cases. I tried Count instead of CountDistinct,
but it doesnt work.
Any suggestions?
ThanksI use something like Iif(RowNumber("myGroupName") Mod 2 = 0, "PowderBlue",
"White")
"NI" wrote:
> Hi:
> I am trying to alternate row colors within groups, and I do this
> <BackgroundColor>=iif(RunningValue(Fields!Country.Value,CountDistinct,Nothin
> g) Mod 2, "Cornsilk", "White")</BackgroundColor>
> but the problem is my country field has duplicates, and the color is
> not alternating in such cases. I tried Count instead of CountDistinct,
> but it doesnt work.
> Any suggestions?
> Thanks
>sql

Alternate item color

How do I change the row background color for table items?
In data grid control, I can use
<AlternatingItemStyle BackColor="#FFFFCC"></AlternatingItemStyle> but I am
not able to find this attribute in report services? Thanks for help.If the row has grouping
=iif(RunningValue(Fields!Grouped.Value,CountDistinct,Nothing) Mod 2,
"Cornsilk", "White")
or if it has no grouping
=iif(RowNumber(Nothing) Mod 2, "Cornsilk", "White")
"Help is in the way" wrote:
> How do I change the row background color for table items?
> In data grid control, I can use
> <AlternatingItemStyle BackColor="#FFFFCC"></AlternatingItemStyle> but I am
> not able to find this attribute in report services? Thanks for help.
>
>

Alternate Background Color in Row

Hi,
I am working on a report in the Reporting Services. I was wondering if we
can set alternate background color for a group of rows on the report. Let's
see the example below.
ID Name Month Field4 Field5
1 A Jan 8 9 -- Background color: red
1 A Jan 10 2 -- Background color: red
1 A May 3 3 -- Background color:
transparent
2 B Feb 2 4 -- Background color: red
3 C Apr 5 6 -- Background color:
transparent
3 C Apr 7 5 -- Background color:
transparent
4 D Mar 2 2 -- Background color: red
4 D Jun 3 1 -- Background color:
transparent
The background color will be set based on the group of ID, Name and Month
fields. Does anyone know if this is doable? If so, how to do it?
Any help would be greatly appreciated!
Thank you in advance.
Jeannetteto alternate colors in a table, place this in BackgroundColor expression:
=iif(RowNumber(Nothing) Mod 2, "AliceBlue", "White")
feel free to place whatever colors you want in there
"Jeannette" wrote:
> Hi,
> I am working on a report in the Reporting Services. I was wondering if we
> can set alternate background color for a group of rows on the report. Let's
> see the example below.
> ID Name Month Field4 Field5
> 1 A Jan 8 9 -- Background color: red
> 1 A Jan 10 2 -- Background color: red
> 1 A May 3 3 -- Background color:
> transparent
> 2 B Feb 2 4 -- Background color: red
> 3 C Apr 5 6 -- Background color:
> transparent
> 3 C Apr 7 5 -- Background color:
> transparent
> 4 D Mar 2 2 -- Background color: red
> 4 D Jun 3 1 -- Background color:
> transparent
> The background color will be set based on the group of ID, Name and Month
> fields. Does anyone know if this is doable? If so, how to do it?
> Any help would be greatly appreciated!
> Thank you in advance.
> Jeannette|||Thank you very much for your response! Carl. Although your answer is not
exactly what I am looking for, it really helps me to get to what I need for
my report. As I explained earlier in my previous message, the alternate
background color will be set based on the GROUP of ID, Name, and Color
fields. Below is what I found for my question. It really works!
In BackgroundColor expression:
=iif(RunningValue(Cstr(Fields!ID.Value) & CStr(Fields!Name.Value) &
CStr(Fields!Month.Value),CountDistinct,Nothing) Mod 2, "AliceBlue", "White")
Jeannette
"Carl Henthorn" wrote:
> to alternate colors in a table, place this in BackgroundColor expression:
> =iif(RowNumber(Nothing) Mod 2, "AliceBlue", "White")
> feel free to place whatever colors you want in there
> "Jeannette" wrote:
> > Hi,
> >
> > I am working on a report in the Reporting Services. I was wondering if we
> > can set alternate background color for a group of rows on the report. Let's
> > see the example below.
> >
> > ID Name Month Field4 Field5
> > 1 A Jan 8 9 -- Background color: red
> > 1 A Jan 10 2 -- Background color: red
> > 1 A May 3 3 -- Background color:
> > transparent
> > 2 B Feb 2 4 -- Background color: red
> > 3 C Apr 5 6 -- Background color:
> > transparent
> > 3 C Apr 7 5 -- Background color:
> > transparent
> > 4 D Mar 2 2 -- Background color: red
> > 4 D Jun 3 1 -- Background color:
> > transparent
> >
> > The background color will be set based on the group of ID, Name and Month
> > fields. Does anyone know if this is doable? If so, how to do it?
> >
> > Any help would be greatly appreciated!
> >
> > Thank you in advance.
> >
> > Jeannette

Alternate Background Color

I have a table about 3 rows. I want to see every other row highlighted gray
so it easier for the eye to follow.
any ideas?
Thanks
Fab.You can use RowNumber(nothing) Mod 2 to find out if the row is even or odd,
and use this in an IIf to change the background color.
"Fab" wrote:
> I have a table about 3 rows. I want to see every other row highlighted gray
> so it easier for the eye to follow.
> any ideas?
> Thanks
> Fab.
>
>|||Use this in the backgroundcolor property :
=iif(RowNumber(nothing) mod 2 =0,"LightGrey",Nothing)
"Fab" wrote:
> I have a table about 3 rows. I want to see every other row highlighted gray
> so it easier for the eye to follow.
> any ideas?
> Thanks
> Fab.
>
>|||Hi
I would use a custom function for this as it is quite a common thing to
want to do.
' Alternate Row Colors
Public Function AltCol(ByVal RowNum As Integer) As String
Dim ReturnColor as String
If RowNum Mod 2
ReturnColor = "WhiteSmoke"
Else
ReturnColor = "White"
End If
Return ReturnColor
End Function
You could extend this by adding optional variables for the alterante
colors making this a completely generic function.
To use this go to expressions in the Row BG Color tab in properties.
add the following line: =Code!AltCol(RowNumber())
This is just pointer in the right direction but what it allows is for
you to uses this all over a report, groups with out having to IIF
everywhere.|||Hi
I would use a custom function for this as it is quite a common thing to
want to do.
' Alternate Row Colors
Public Function AltCol(ByVal RowNum As Integer) As String
Dim ReturnColor as String
If RowNum Mod 2
ReturnColor = "WhiteSmoke"
Else
ReturnColor = "White"
End If
Return ReturnColor
End Function
You could extend this by adding optional variables for the alterante
colors making this a completely generic function.
To use this go to expressions in the Row BG Color tab in properties.
add the following line: =Code!AltCol(RowNumber())
This is just pointer in the right direction but what it allows is for
you to uses this all over a report, groups with out having to IIF
everywhere.|||Is it possible to have different colors? like "LightGrey" for odd rows and
"WhiteSmoke" for even rows? How would I combine the two iif statements - one
for mod 2 =0 and other for mod 2 = 1?
Thanks.
"Eric" wrote:
> Use this in the backgroundcolor property :
> =iif(RowNumber(nothing) mod 2 =0,"LightGrey",Nothing)
>
> "Fab" wrote:
> > I have a table about 3 rows. I want to see every other row highlighted gray
> > so it easier for the eye to follow.
> >
> > any ideas?
> >
> > Thanks
> > Fab.
> >
> >
> >

Altering SQL Server 2000 table design

I'm trying to do a simple alteration to the table design of one of our
SQL 2k tables, simply changing an identity row so that its not 'not
for replication', and its taking absolutely ages to do so, and stops
the sql server from working.

Whilst it's attempting the update, no one can access the database, the
sqlservr.exe memory usage shoots up and enterprise manager reports a
not responding status. Eventually after about 10 minutes, it bombs out
reporting,

Unable to modify table
Could not allocate space for object 'Tmp_TableName' in database
'DBNAME' because the 'PRIMARY' filegroup is full.

The table i'm attempting to change has only about 4000 records so
there's not a huge amount of data.

Any ideas what's causing this and how i can get around it?

A similar thing happens when i attempt to change the length of a
varchar too.

Thanks in advance for any suggestions

Dan Williams."Dan Williams" <dan_williams@.newcross-nursing.com> wrote in message
news:2eac5d02.0406040735.5d88d033@.posting.google.c om...
> I'm trying to do a simple alteration to the table design of one of our
> SQL 2k tables, simply changing an identity row so that its not 'not
> for replication', and its taking absolutely ages to do so, and stops
> the sql server from working.
> Whilst it's attempting the update, no one can access the database, the
> sqlservr.exe memory usage shoots up and enterprise manager reports a
> not responding status. Eventually after about 10 minutes, it bombs out
> reporting,
> Unable to modify table
> Could not allocate space for object 'Tmp_TableName' in database
> 'DBNAME' because the 'PRIMARY' filegroup is full.
> The table i'm attempting to change has only about 4000 records so
> there's not a huge amount of data.
> Any ideas what's causing this and how i can get around it?
> A similar thing happens when i attempt to change the length of a
> varchar too.
> Thanks in advance for any suggestions
> Dan Williams.

Unfortunately, ALTER TABLE doesn't allow you to modify IDENTITY columns, so
there's no way to remove the NOT FOR REPLICATION option without recreating
the table. Behind the scenes, Enterprise Manager will create a new table,
set IDENTITY_INSERT ON, INSERT the rows from the existing table, drop the
original table, then rename the new one. Tmp_TableName is the 'working'
table that will be renamed after the existing TableName is dropped.

With a large table, this can be a slow process requiring a lot of disk
space, but 4000 rows doesn't sound like much data (unless you have
text/image columns perhaps). Anyway, the error message is clear - no more
space in the filegroup. So you need to add space by expanding the existing
database file(s). If you can't do this for some reason, then one solution
might be to use bcp.exe or DTS to export the data to a flat file, drop and
recreate the table yourself, then import the data.

Finally, as a general remark, Enterprise Manager hides a lot of what it's
really doing from you, so many people prefer to use Query Analyzer as much
as possible, since then you have complete control over what you're doing.

Simon|||Thanks for the response.

Having done a bit more research on Google i managed to find this:-

run this in your publication database.
Here I am setting the identity column for the jobs table to NFR

sp configure 'allow updates', 1
GO
reconfigure with override
GO
update syscolumns set colstat = colstat | 0x0008 where colstat &
0x0001 <> 0 and colstat & 0x0008 = 0 and id=object id('jobs')
GO
sp configure 'allow updates', 0

Anyone know the value to set colstat too, so as to disable the NFR,
and just make it a normal IDENTITY value?

I also found this web site which was a good reference.

http://www.winnetmag.com/SQLServer/...2080/22080.html

Having clicked on the 'Save Change Script' button of Enterprise
Manager when attempting to do this, I see what you mean about the
amount of work that EM actually does.

Thanks again

Dan.

> Unfortunately, ALTER TABLE doesn't allow you to modify IDENTITY columns, so
> there's no way to remove the NOT FOR REPLICATION option without recreating
> the table. Behind the scenes, Enterprise Manager will create a new table,
> set IDENTITY_INSERT ON, INSERT the rows from the existing table, drop the
> original table, then rename the new one. Tmp_TableName is the 'working'
> table that will be renamed after the existing TableName is dropped.
> With a large table, this can be a slow process requiring a lot of disk
> space, but 4000 rows doesn't sound like much data (unless you have
> text/image columns perhaps). Anyway, the error message is clear - no more
> space in the filegroup. So you need to add space by expanding the existing
> database file(s). If you can't do this for some reason, then one solution
> might be to use bcp.exe or DTS to export the data to a flat file, drop and
> recreate the table yourself, then import the data.
> Finally, as a general remark, Enterprise Manager hides a lot of what it's
> really doing from you, so many people prefer to use Query Analyzer as much
> as possible, since then you have complete control over what you're doing.
> Simon|||"Dan Williams" <dan_williams@.newcross-nursing.com> wrote in message
news:2eac5d02.0406041501.37b74d00@.posting.google.c om...
> Thanks for the response.
> Having done a bit more research on Google i managed to find this:-
> run this in your publication database.
> Here I am setting the identity column for the jobs table to NFR
> sp configure 'allow updates', 1
> GO
> reconfigure with override
> GO
> update syscolumns set colstat = colstat | 0x0008 where colstat &
> 0x0001 <> 0 and colstat & 0x0008 = 0 and id=object id('jobs')
> GO
> sp configure 'allow updates', 0
>
> Anyone know the value to set colstat too, so as to disable the NFR,
> and just make it a normal IDENTITY value?
> I also found this web site which was a good reference.
> http://www.winnetmag.com/SQLServer/...2080/22080.html
> Having clicked on the 'Save Change Script' button of Enterprise
> Manager when attempting to do this, I see what you mean about the
> amount of work that EM actually does.
> Thanks again
> Dan.

<snip
Based on the query above, you need an XOR operation to remove NOT FOR
REPLICATION:

update syscolumns
set colstat = colstat ^ 8
where colstat & 1 <> 0
and colstat & 8 <> 0
and id =object_id('jobs')

But be very careful with this - Microsoft does not support modifications to
system tables (see "System Tables" in Books Online), and the colstat column
is not documented (see "syscolumns"). So if you have problems, then you're
on your own - dropping and recreating the table is the supported, reliable
method.

Simon

Alter Table Row Size Error

I am trying to alter a table and getting the following error.
Server: Msg 1701, Level 16, State 2, Line 1
Creation of table 'CustomerMaster' failed because the row size would be
8508, including internal overhead. This exceeds the maximum allowable table
row size, 8060.
I can create a new table with the same fields, but not alter an existing one.
I have calculated the maximum row size as only 6004 after the changes. Here
is what I used to calculate.
69 columns
39 char fields (5816 total characters)
9 tinyint fields (size = 9 * 1 = 9)
4 int fields (size = 4 * 4 = 16)
5 datetime fields (size = 5 * 8 = 40)
12 decimal 19,5 fields (size = 12 * 9 = 108)
Num_Cols = 69
Fixed_Data_Size = 5989
Num_Var_Cols = 0
Max_Var_Size = 0
Null_Bitmap = 2 + ((69 + 7 ) / 8 = 11.5
Row_Size = 5981 + 0 + 11 + 4 = 6004> 39 char fields (5816 total characters)
What are the definitions of these columns? Are they
CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
> 9 tinyint fields (size = 9 * 1 = 9)
> 4 int fields (size = 4 * 4 = 16)
> 5 datetime fields (size = 5 * 8 = 40)
> 12 decimal 19,5 fields (size = 12 * 9 = 108)
Are any of these NULLable?|||"Aaron Bertrand [SQL Server MVP]" wrote:
> > 39 char fields (5816 total characters)
> What are the definitions of these columns? Are they
> CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
> > 9 tinyint fields (size = 9 * 1 = 9)
> > 4 int fields (size = 4 * 4 = 16)
> > 5 datetime fields (size = 5 * 8 = 40)
> > 12 decimal 19,5 fields (size = 12 * 9 = 108)
> Are any of these NULLable?
>
>
39 CHAR fields
field length - field count
3 - 2
5 - 3
10 - 4
15 - 1
20 - 11
25 - 2
30 - 11
45 - 2
50 - 1
2000 - 1
3000 - 1
total characters = 5816
all fields are NULLABLE but one CHAR field (in my calculations I considered
all fields as nullable)|||"Aaron Bertrand [SQL Server MVP]" wrote:
> > 39 char fields (5816 total characters)
> What are the definitions of these columns? Are they
> CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
> > 9 tinyint fields (size = 9 * 1 = 9)
> > 4 int fields (size = 4 * 4 = 16)
> > 5 datetime fields (size = 5 * 8 = 40)
> > 12 decimal 19,5 fields (size = 12 * 9 = 108)
> Are any of these NULLable?
>
>
I used http://msdn2.microsoft.com/en-us/library/aa933068(SQL.80).aspx to
calculate my row size.|||Are you certain they're all CHAR and none are NCHAR or NVARCHAR? Can you
post the results of:
EXEC sp_help 'tablename';
?
Why would you have a CHAR(2000) or CHAR(3000)? Is every row always going to
be 3000 characters?
"Matt Soukup" <MattSoukup@.discussions.microsoft.com> wrote in message
news:F6ADF63E-E3FD-4D8E-88C7-8D1B1C4F2D22@.microsoft.com...
>
> "Aaron Bertrand [SQL Server MVP]" wrote:
>> > 39 char fields (5816 total characters)
>> What are the definitions of these columns? Are they
>> CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
>> > 9 tinyint fields (size = 9 * 1 = 9)
>> > 4 int fields (size = 4 * 4 = 16)
>> > 5 datetime fields (size = 5 * 8 = 40)
>> > 12 decimal 19,5 fields (size = 12 * 9 = 108)
>> Are any of these NULLable?
>>
> 39 CHAR fields
> field length - field count
> 3 - 2
> 5 - 3
> 10 - 4
> 15 - 1
> 20 - 11
> 25 - 2
> 30 - 11
> 45 - 2
> 50 - 1
> 2000 - 1
> 3000 - 1
> total characters = 5816
> all fields are NULLABLE but one CHAR field (in my calculations I
> considered
> all fields as nullable)|||> I used http://msdn2.microsoft.com/en-us/library/aa933068(SQL.80).aspx to
> calculate my row size.
Yes, that's all fine and good. But if you wrote down CHAR(3000) when it's
actually NCHAR(3000), and used the former in your calculations, it doesn't
really matter how accurate the calculation is, the source input invalidates
it.|||"Aaron Bertrand [SQL Server MVP]" wrote:
> > I used http://msdn2.microsoft.com/en-us/library/aa933068(SQL.80).aspx to
> > calculate my row size.
> Yes, that's all fine and good. But if you wrote down CHAR(3000) when it's
> actually NCHAR(3000), and used the former in your calculations, it doesn't
> really matter how accurate the calculation is, the source input invalidates
> it.
>
>
all character fields are CHAR(####)
Nothing is NCHAR, VARCHAR, NVARCHAR, etc...
Here is a list of the fields:
Customer_Number char(20)
CUSTNMBR char(45)
VENDORID char(45)
Attn_Name char(30)
Contact_Name char(30)
ContactPhone char(20)
BusinessName char(30)
AddressLine1 char(30)
AddressLine2 char(30)
City char(25)
State char(3)
ZipCode char(10)
Phone char(20)
Fax char(20)
ICC_Number char(20)
FedID_Number char(15)
Contracted tinyint
Start_Date datetime
InsAgentName char(30)
InsAgentAddress1 char(30)
InsAgentAddress2 char(30)
InsAgentCity char(25)
InsAgentState char(3)
InsAgentZipCode char(10)
InsAgentPhone char(20)
InsAgentFax char(20)
InsAgentContact char(30)
CargoInsName char(28)
CargoInsAmount decimal(19, 5)
CargoInsExpirationDate datetime
AutoLibInsName char(30)
AutoLibInsAmount decimal(19, 5)
AutoLibInsExpirationDate datetime
Agent_YN tinyint
Broker_YN tinyint
Carrier_YN tinyint
Shipper_YN tinyint
Consignee_YN tinyint
BillTo_YN tinyint
CreatedDate datetime
CreatedUserID char(20)
Billing_Rate decimal(19, 5)
Billing_Rate_Code char(5)
Rating char(5)
Color char(20)
Flagged tinyint
FlagDate datetime
FlagUserID char(20)
FlagReason char(50)
Active tinyint
Notes char(3000)
PayCode char(5)
PayRateFlat decimal(19, 5)
PayRatePercent decimal(19, 5)
PayRateLoaded decimal(19, 5)
PayRateUnloaded decimal(19, 5)
DefaultSalesperson char(20)
Directions char(2000)
FSType char(10)
FSRateAmount decimal(19, 5)
Weight decimal(19, 5)
AgentPayAccount int
CarrierPayAccount int
DropPayAmount decimal(19, 5)
PickupPayAmount decimal(19, 5)
ISType char(10)
ISRateAmount decimal(19, 5)
Latitude int
Longitude int|||Sorry, but there is still information missing. I don't want to see your
compiled list of fields. Can you please copy and paste the result of:
EXEC sp_help 'CustomerMaster';
? Otherwise, I have no further input on this issue. The list of columns
you provided below can't possibly be 8508 bytes unless (a) the column you're
trying to add is a lot longer than you're letting on, (b) some of those data
types are not correct, or (c) you've left out some columns.
> all character fields are CHAR(####)
> Nothing is NCHAR, VARCHAR, NVARCHAR, etc...
> Here is a list of the fields:
> Customer_Number char(20)|||"Aaron Bertrand [SQL Server MVP]" wrote:
> Sorry, but there is still information missing. I don't want to see your
> compiled list of fields. Can you please copy and paste the result of:
> EXEC sp_help 'CustomerMaster';
> ? Otherwise, I have no further input on this issue. The list of columns
> you provided below can't possibly be 8508 bytes unless (a) the column you're
> trying to add is a lot longer than you're letting on, (b) some of those data
> types are not correct, or (c) you've left out some columns.
>
>
> > all character fields are CHAR(####)
> > Nothing is NCHAR, VARCHAR, NVARCHAR, etc...
> >
> > Here is a list of the fields:
> >
> > Customer_Number char(20)
>
>
Just forget it. SQL is being stupid.
This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20).
I can create this table from scratch with the columns/sizes I listed above.
The table is created with no problem. I have to up the size of one of my CHAR
fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get the
CREATE TABLE to fail with the same error.|||> Just forget it. SQL is being stupid.
I am willing to bet that it is not. But I can't prove it unless you post an
honest result from EXEC sp_help.
> This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
> COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20).
Is it possible this column is involved in a foreign key relationship, and
you are trying to implement the change through the GUI?
A|||> I can create this table from scratch with the columns/sizes I listed
> above.
> The table is created with no problem. I have to up the size of one of my
> CHAR
> fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get
> the
> CREATE TABLE to fail with the same error.
I also strongly recommend you familiarize yourself with the reasons we have
CHAR and VARCHAR. CHAR(2000) is not exactly a great choice here.
http://databases.aspfaq.com/database/what-datatype-should-i-use-for-my-character-based-database-columns.html
A|||Hi Matt
If you ALTER the length of fixed length columns, SQL Server may not reuse
the original space.
See my blog post on the subject:
http://sqlblog.com/blogs/kalen_delaney/archive/2006/10/13/301.aspx
--
HTH
Kalen Delaney, SQL Server MVP
http://sqlblog.com
"Matt Soukup" <MattSoukup@.discussions.microsoft.com> wrote in message
news:9EF8C9DF-A8DE-406D-B1BA-1C67338D8FB3@.microsoft.com...
>I am trying to alter a table and getting the following error.
> Server: Msg 1701, Level 16, State 2, Line 1
> Creation of table 'CustomerMaster' failed because the row size would be
> 8508, including internal overhead. This exceeds the maximum allowable
> table
> row size, 8060.
> I can create a new table with the same fields, but not alter an existing
> one.
> I have calculated the maximum row size as only 6004 after the changes.
> Here
> is what I used to calculate.
> 69 columns
> 39 char fields (5816 total characters)
> 9 tinyint fields (size = 9 * 1 = 9)
> 4 int fields (size = 4 * 4 = 16)
> 5 datetime fields (size = 5 * 8 = 40)
> 12 decimal 19,5 fields (size = 12 * 9 = 108)
> Num_Cols = 69
> Fixed_Data_Size = 5989
> Num_Var_Cols = 0
> Max_Var_Size = 0
> Null_Bitmap = 2 + ((69 + 7 ) / 8 = 11.5
> Row_Size = 5981 + 0 + 11 + 4 = 6004
>|||On Feb 7, 2:13 pm, Matt Soukup <MattSou...@.discussions.microsoft.com>
wrote:
> Just forget it. SQL is being stupid.
> This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
> COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20).
> I can create this table from scratch with the columns/sizes I listed above.
> The table is created with no problem. I have to up the size of one of my CHAR
> fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get the
> CREATE TABLE to fail with the same error.
Aaron asked you twice for the results of sp_help, and you've refused
to provide that, instead opting for the "SQL is being stupid"
response. WTF? If we can see the table structure, then we know
exactly what you're working with, and can provide a proper answer
instead of guessing.
Here's another suggestion that you can write off as "stupid" - think
about using VARCHAR instead of CHAR for your column definitions.
You're very likely wasting a ton of space with these fixed-length
2000+ column lengths. Read up on the differences between CHAR and
VARCHAR, hopefully the documentation isn't too "stupid".|||This may very well be it; I'm glad I cntinue to learn things from you Kalen.
But the OP stated:
"This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20)."
Yet is able to increase the length of a CHAR(2000) column to CHAR(5000). I
would think that if previous column modifications had caused the row size
threshold to be within 10 bytes of the current row size, that just about
*any* column length extension would cause the problem. I guess having the
actual table structure from sp_help, so understanding the order of the
columns (and a history of modifications made) would help us answer the
question better. Better still would be the result of your query against
sys.partitions/columns/system_internals_partition_columns.
In any case, the last statement in your blog entry is probably the most
helpful to the OP, though Tracy and I have both suggested it to no avail:
"So be careful when using large datatypes, especially if you want to make
them fixed length instead of variable length."
The shortest path is likely to rebuild the table. But the Directions and
Notes columns should be VARCHAR, not CHAR.
A
"Kalen Delaney" <replies@.public_newsgroups.com> wrote in message
news:e5yhB40SHHA.1552@.TK2MSFTNGP05.phx.gbl...
> Hi Matt
> If you ALTER the length of fixed length columns, SQL Server may not reuse
> the original space.
> See my blog post on the subject:
> http://sqlblog.com/blogs/kalen_delaney/archive/2006/10/13/301.aspx|||I didn't read the whole thread in detail initially, I was just tossing this
out as a possibility.
However, now that I am going back and reading over the posts, I don't see
anywhere that he said he had already altered the table changing a column
from 2000 to 5000 bytes. He said he would have to replace a 2000 byte column
with a 5000 byte column to get the original CREATE TABLE to fail. Has he
indicated he has done other ALTERs?
Yes, it would be nice to get more details from the OP, including WHY he
thinks he needs fixed length columns. Otherwise we just can't know. I agree
Directions and Notes should be variable length.
--
HTH
Kalen Delaney, SQL Server MVP
http://sqlblog.com
"Aaron Bertrand [SQL Server MVP]" <ten.xoc@.dnartreb.noraa> wrote in message
news:OpFCoZ4SHHA.1552@.TK2MSFTNGP05.phx.gbl...
> This may very well be it; I'm glad I cntinue to learn things from you
> Kalen.
> But the OP stated:
> "This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
> COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20)."
> Yet is able to increase the length of a CHAR(2000) column to CHAR(5000).
> I would think that if previous column modifications had caused the row
> size threshold to be within 10 bytes of the current row size, that just
> about *any* column length extension would cause the problem. I guess
> having the actual table structure from sp_help, so understanding the order
> of the columns (and a history of modifications made) would help us answer
> the question better. Better still would be the result of your query
> against sys.partitions/columns/system_internals_partition_columns.
> In any case, the last statement in your blog entry is probably the most
> helpful to the OP, though Tracy and I have both suggested it to no avail:
> "So be careful when using large datatypes, especially if you want to make
> them fixed length instead of variable length."
> The shortest path is likely to rebuild the table. But the Directions and
> Notes columns should be VARCHAR, not CHAR.
> A
>
>
>
> "Kalen Delaney" <replies@.public_newsgroups.com> wrote in message
> news:e5yhB40SHHA.1552@.TK2MSFTNGP05.phx.gbl...
>> Hi Matt
>> If you ALTER the length of fixed length columns, SQL Server may not reuse
>> the original space.
>> See my blog post on the subject:
>> http://sqlblog.com/blogs/kalen_delaney/archive/2006/10/13/301.aspx
>|||> However, now that I am going back and reading over the posts, I don't see
> anywhere that he said he had already altered the table changing a column
> from 2000 to 5000 bytes. He said he would have to replace a 2000 byte
> column with a 5000 byte column to get the original CREATE TABLE to fail.
> Has he indicated he has done other ALTERs?
Here is what I am referring to:
I have to up the size of one of my CHAR
fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get the
CREATE TABLE to fail with the same error.
My interpretation was that he had done that. Maybe I'm wrong. It's
ambiguous.
A|||Yes, that is what I'm referring to, and he explicitly says it is the CREATE
table and not ALTER.
--
HTH
Kalen Delaney, SQL Server MVP
http://sqlblog.com
"Aaron Bertrand [SQL Server MVP]" <ten.xoc@.dnartreb.noraa> wrote in message
news:%23UIpXh6SHHA.2228@.TK2MSFTNGP03.phx.gbl...
>> However, now that I am going back and reading over the posts, I don't see
>> anywhere that he said he had already altered the table changing a column
>> from 2000 to 5000 bytes. He said he would have to replace a 2000 byte
>> column with a 5000 byte column to get the original CREATE TABLE to fail.
>> Has he indicated he has done other ALTERs?
> Here is what I am referring to:
> I have to up the size of one of my CHAR
> fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get
> the
> CREATE TABLE to fail with the same error.
> My interpretation was that he had done that. Maybe I'm wrong. It's
> ambiguous.
> A
>|||> Yes, that is what I'm referring to, and he explicitly says it is the
> CREATE table and not ALTER.
Ahh. You should know by now that I lack the ability to read entire
sentences. :-)
And you would think the caps would make words stand out more, but for me it
obscures them... I tend to focus on the meat *between* the keywords...
A

Alter Table Row Size Error

I am trying to alter a table and getting the following error.
Server: Msg 1701, Level 16, State 2, Line 1
Creation of table 'CustomerMaster' failed because the row size would be
8508, including internal overhead. This exceeds the maximum allowable table
row size, 8060.
I can create a new table with the same fields, but not alter an existing one
.
I have calculated the maximum row size as only 6004 after the changes. Here
is what I used to calculate.
69 columns
39 char fields (5816 total characters)
9 tinyint fields (size = 9 * 1 = 9)
4 int fields (size = 4 * 4 = 16)
5 datetime fields (size = 5 * 8 = 40)
12 decimal 19,5 fields (size = 12 * 9 = 108)
Num_Cols = 69
Fixed_Data_Size = 5989
Num_Var_Cols = 0
Max_Var_Size = 0
Null_Bitmap = 2 + ((69 + 7 ) / 8 = 11.5
Row_Size = 5981 + 0 + 11 + 4 = 6004> 39 char fields (5816 total characters)
What are the definitions of these columns? Are they
CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?

> 9 tinyint fields (size = 9 * 1 = 9)
> 4 int fields (size = 4 * 4 = 16)
> 5 datetime fields (size = 5 * 8 = 40)
> 12 decimal 19,5 fields (size = 12 * 9 = 108)
Are any of these NULLable?|||"Aaron Bertrand [SQL Server MVP]" wrote:

> What are the definitions of these columns? Are they
> CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
>
> Are any of these NULLable?
>
>
39 CHAR fields
field length - field count
3 - 2
5 - 3
10 - 4
15 - 1
20 - 11
25 - 2
30 - 11
45 - 2
50 - 1
2000 - 1
3000 - 1
total characters = 5816
all fields are NULLABLE but one CHAR field (in my calculations I considered
all fields as nullable)|||"Aaron Bertrand [SQL Server MVP]" wrote:

> What are the definitions of these columns? Are they
> CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
>
> Are any of these NULLable?
>
>
I used http://msdn2.microsoft.com/en-us/library/aa933068(SQL.80).aspx to
calculate my row size.|||Are you certain they're all CHAR and none are NCHAR or NVARCHAR? Can you
post the results of:
EXEC sp_help 'tablename';
?
Why would you have a CHAR(2000) or CHAR(3000)? Is every row always going to
be 3000 characters?
"Matt Soukup" <MattSoukup@.discussions.microsoft.com> wrote in message
news:F6ADF63E-E3FD-4D8E-88C7-8D1B1C4F2D22@.microsoft.com...
>
> "Aaron Bertrand [SQL Server MVP]" wrote:
>
> 39 CHAR fields
> field length - field count
> 3 - 2
> 5 - 3
> 10 - 4
> 15 - 1
> 20 - 11
> 25 - 2
> 30 - 11
> 45 - 2
> 50 - 1
> 2000 - 1
> 3000 - 1
> total characters = 5816
> all fields are NULLABLE but one CHAR field (in my calculations I
> considered
> all fields as nullable)|||> I used http://msdn2.microsoft.com/en-us/library/aa933068(SQL.80).aspx to
> calculate my row size.
Yes, that's all fine and good. But if you wrote down CHAR(3000) when it's
actually NCHAR(3000), and used the former in your calculations, it doesn't
really matter how accurate the calculation is, the source input invalidates
it.|||"Aaron Bertrand [SQL Server MVP]" wrote:

> Yes, that's all fine and good. But if you wrote down CHAR(3000) when it's
> actually NCHAR(3000), and used the former in your calculations, it doesn't
> really matter how accurate the calculation is, the source input invalidate
s
> it.
>
>
all character fields are CHAR(####)
Nothing is NCHAR, VARCHAR, NVARCHAR, etc...
Here is a list of the fields:
Customer_Number char(20)
CUSTNMBR char(45)
VENDORID char(45)
Attn_Name char(30)
Contact_Name char(30)
ContactPhone char(20)
BusinessName char(30)
AddressLine1 char(30)
AddressLine2 char(30)
City char(25)
State char(3)
ZipCode char(10)
Phone char(20)
Fax char(20)
ICC_Number char(20)
FedID_Number char(15)
Contracted tinyint
Start_Date datetime
InsAgentName char(30)
InsAgentAddress1 char(30)
InsAgentAddress2 char(30)
InsAgentCity char(25)
InsAgentState char(3)
InsAgentZipCode char(10)
InsAgentPhone char(20)
InsAgentFax char(20)
InsAgentContact char(30)
CargoInsName char(28)
CargoInsAmount decimal(19, 5)
CargoInsExpirationDate datetime
AutoLibInsName char(30)
AutoLibInsAmount decimal(19, 5)
AutoLibInsExpirationDate datetime
Agent_YN tinyint
Broker_YN tinyint
Carrier_YN tinyint
Shipper_YN tinyint
Consignee_YN tinyint
BillTo_YN tinyint
CreatedDate datetime
CreatedUserID char(20)
Billing_Rate decimal(19, 5)
Billing_Rate_Code char(5)
Rating char(5)
Color char(20)
Flagged tinyint
FlagDate datetime
FlagUserID char(20)
FlagReason char(50)
Active tinyint
Notes char(3000)
PayCode char(5)
PayRateFlat decimal(19, 5)
PayRatePercent decimal(19, 5)
PayRateLoaded decimal(19, 5)
PayRateUnloaded decimal(19, 5)
DefaultSalesperson char(20)
Directions char(2000)
FSType char(10)
FSRateAmount decimal(19, 5)
Weight decimal(19, 5)
AgentPayAccount int
CarrierPayAccount int
DropPayAmount decimal(19, 5)
PickupPayAmount decimal(19, 5)
ISType char(10)
ISRateAmount decimal(19, 5)
Latitude int
Longitude int|||Sorry, but there is still information missing. I don't want to see your
compiled list of fields. Can you please copy and paste the result of:
EXEC sp_help 'CustomerMaster';
? Otherwise, I have no further input on this issue. The list of columns
you provided below can't possibly be 8508 bytes unless (a) the column you're
trying to add is a lot longer than you're letting on, (b) some of those data
types are not correct, or (c) you've left out some columns.

> all character fields are CHAR(####)
> Nothing is NCHAR, VARCHAR, NVARCHAR, etc...
> Here is a list of the fields:
> Customer_Number char(20)|||"Aaron Bertrand [SQL Server MVP]" wrote:

> Sorry, but there is still information missing. I don't want to see your
> compiled list of fields. Can you please copy and paste the result of:
> EXEC sp_help 'CustomerMaster';
> ? Otherwise, I have no further input on this issue. The list of column
s
> you provided below can't possibly be 8508 bytes unless (a) the column you'
re
> trying to add is a lot longer than you're letting on, (b) some of those da
ta
> types are not correct, or (c) you've left out some columns.
>
>
>
>
>
Just forget it. SQL is being stupid.
This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20).
I can create this table from scratch with the columns/sizes I listed above.
The table is created with no problem. I have to up the size of one of my CHA
R
fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get the
CREATE TABLE to fail with the same error.|||> I can create this table from scratch with the columns/sizes I listed
> above.
> The table is created with no problem. I have to up the size of one of my
> CHAR
> fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get
> the
> CREATE TABLE to fail with the same error.
I also strongly recommend you familiarize yourself with the reasons we have
CHAR and VARCHAR. CHAR(2000) is not exactly a great choice here.
http://databases.aspfaq.com/databas...se-columns.html
Asql

Alter Table Row Size Error

I am trying to alter a table and getting the following error.
Server: Msg 1701, Level 16, State 2, Line 1
Creation of table 'CustomerMaster' failed because the row size would be
8508, including internal overhead. This exceeds the maximum allowable table
row size, 8060.
I can create a new table with the same fields, but not alter an existing one.
I have calculated the maximum row size as only 6004 after the changes. Here
is what I used to calculate.
69 columns
39 char fields (5816 total characters)
9 tinyint fields (size = 9 * 1 = 9)
4 int fields (size = 4 * 4 = 16)
5 datetime fields (size = 5 * 8 = 40)
12 decimal 19,5 fields (size = 12 * 9 = 108)
Num_Cols = 69
Fixed_Data_Size = 5989
Num_Var_Cols = 0
Max_Var_Size = 0
Null_Bitmap = 2 + ((69 + 7 ) / 8 = 11.5
Row_Size = 5981 + 0 + 11 + 4 = 6004
> 39 char fields (5816 total characters)
What are the definitions of these columns? Are they
CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?

> 9 tinyint fields (size = 9 * 1 = 9)
> 4 int fields (size = 4 * 4 = 16)
> 5 datetime fields (size = 5 * 8 = 40)
> 12 decimal 19,5 fields (size = 12 * 9 = 108)
Are any of these NULLable?
|||"Aaron Bertrand [SQL Server MVP]" wrote:

> What are the definitions of these columns? Are they
> CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
>
> Are any of these NULLable?
>
>
39 CHAR fields
field length - field count
3 - 2
5 - 3
10 - 4
15 - 1
20 - 11
25 - 2
30 - 11
45 - 2
50 - 1
2000 - 1
3000 - 1
total characters = 5816
all fields are NULLABLE but one CHAR field (in my calculations I considered
all fields as nullable)
|||"Aaron Bertrand [SQL Server MVP]" wrote:

> What are the definitions of these columns? Are they
> CHAR/NCHAR/VARCHAR/NVARCHAR? What size? Are they NULLable?
>
> Are any of these NULLable?
>
>
I used http://msdn2.microsoft.com/en-us/library/aa933068(SQL.80).aspx to
calculate my row size.
|||Are you certain they're all CHAR and none are NCHAR or NVARCHAR? Can you
post the results of:
EXEC sp_help 'tablename';
?
Why would you have a CHAR(2000) or CHAR(3000)? Is every row always going to
be 3000 characters?
"Matt Soukup" <MattSoukup@.discussions.microsoft.com> wrote in message
news:F6ADF63E-E3FD-4D8E-88C7-8D1B1C4F2D22@.microsoft.com...
>
> "Aaron Bertrand [SQL Server MVP]" wrote:
> 39 CHAR fields
> field length - field count
> 3 - 2
> 5 - 3
> 10 - 4
> 15 - 1
> 20 - 11
> 25 - 2
> 30 - 11
> 45 - 2
> 50 - 1
> 2000 - 1
> 3000 - 1
> total characters = 5816
> all fields are NULLABLE but one CHAR field (in my calculations I
> considered
> all fields as nullable)
|||> I used http://msdn2.microsoft.com/en-us/library/aa933068(SQL.80).aspx to
> calculate my row size.
Yes, that's all fine and good. But if you wrote down CHAR(3000) when it's
actually NCHAR(3000), and used the former in your calculations, it doesn't
really matter how accurate the calculation is, the source input invalidates
it.
|||"Aaron Bertrand [SQL Server MVP]" wrote:

> Yes, that's all fine and good. But if you wrote down CHAR(3000) when it's
> actually NCHAR(3000), and used the former in your calculations, it doesn't
> really matter how accurate the calculation is, the source input invalidates
> it.
>
>
all character fields are CHAR(####)
Nothing is NCHAR, VARCHAR, NVARCHAR, etc...
Here is a list of the fields:
Customer_Numberchar(20)
CUSTNMBRchar(45)
VENDORIDchar(45)
Attn_Namechar(30)
Contact_Namechar(30)
ContactPhonechar(20)
BusinessNamechar(30)
AddressLine1char(30)
AddressLine2char(30)
Citychar(25)
Statechar(3)
ZipCodechar(10)
Phonechar(20)
Faxchar(20)
ICC_Numberchar(20)
FedID_Numberchar(15)
Contractedtinyint
Start_Datedatetime
InsAgentNamechar(30)
InsAgentAddress1char(30)
InsAgentAddress2char(30)
InsAgentCitychar(25)
InsAgentStatechar(3)
InsAgentZipCodechar(10)
InsAgentPhonechar(20)
InsAgentFaxchar(20)
InsAgentContactchar(30)
CargoInsNamechar(28)
CargoInsAmountdecimal(19, 5)
CargoInsExpirationDatedatetime
AutoLibInsNamechar(30)
AutoLibInsAmountdecimal(19, 5)
AutoLibInsExpirationDatedatetime
Agent_YNtinyint
Broker_YNtinyint
Carrier_YNtinyint
Shipper_YNtinyint
Consignee_YNtinyint
BillTo_YNtinyint
CreatedDatedatetime
CreatedUserIDchar(20)
Billing_Ratedecimal(19, 5)
Billing_Rate_Codechar(5)
Ratingchar(5)
Colorchar(20)
Flaggedtinyint
FlagDatedatetime
FlagUserIDchar(20)
FlagReasonchar(50)
Activetinyint
Noteschar(3000)
PayCodechar(5)
PayRateFlatdecimal(19, 5)
PayRatePercentdecimal(19, 5)
PayRateLoadeddecimal(19, 5)
PayRateUnloadeddecimal(19, 5)
DefaultSalespersonchar(20)
Directionschar(2000)
FSTypechar(10)
FSRateAmountdecimal(19, 5)
Weightdecimal(19, 5)
AgentPayAccountint
CarrierPayAccountint
DropPayAmountdecimal(19, 5)
PickupPayAmountdecimal(19, 5)
ISTypechar(10)
ISRateAmountdecimal(19, 5)
Latitudeint
Longitudeint
|||Sorry, but there is still information missing. I don't want to see your
compiled list of fields. Can you please copy and paste the result of:
EXEC sp_help 'CustomerMaster';
? Otherwise, I have no further input on this issue. The list of columns
you provided below can't possibly be 8508 bytes unless (a) the column you're
trying to add is a lot longer than you're letting on, (b) some of those data
types are not correct, or (c) you've left out some columns.

> all character fields are CHAR(####)
> Nothing is NCHAR, VARCHAR, NVARCHAR, etc...
> Here is a list of the fields:
> Customer_Number char(20)
|||"Aaron Bertrand [SQL Server MVP]" wrote:

> Sorry, but there is still information missing. I don't want to see your
> compiled list of fields. Can you please copy and paste the result of:
> EXEC sp_help 'CustomerMaster';
> ? Otherwise, I have no further input on this issue. The list of columns
> you provided below can't possibly be 8508 bytes unless (a) the column you're
> trying to add is a lot longer than you're letting on, (b) some of those data
> types are not correct, or (c) you've left out some columns.
>
>
>
>
Just forget it. SQL is being stupid.
This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20).
I can create this table from scratch with the columns/sizes I listed above.
The table is created with no problem. I have to up the size of one of my CHAR
fields by 3000, change Directions from CHAR(2000) to CHAR(5000), to get the
CREATE TABLE to fail with the same error.
|||> Just forget it. SQL is being stupid.
I am willing to bet that it is not. But I can't prove it unless you post an
honest result from EXEC sp_help.

> This error is being posted when I try to ALTER TABLE CustomerMaster ALTER
> COLUMN "ContactPhone" CHAR(20). Changing it from CHAR(10) to CHAR(20).
Is it possible this column is involved in a foreign key relationship, and
you are trying to implement the change through the GUI?
A

ALTER TABLE dateAuto

I must add to an existing TABLE a column DateInsert
with a default value = date auto
if a new row is added the column must add datetime.now automaticly (like in acccess 2000) how can I do it ?
for MS SQL 2000
thank youCREATE TABLE #patp (
id INT IDENTITY
, asof DATETIME NOT NULL
DEFAULT GetDate()
, other VARCHAR(10) NULL
)

INSERT #patp (other) VALUES ('One')
INSERT #patp (other) VALUES ('Two')
INSERT #patp (other) VALUES ('Three')

SELECT * FROM #patp
-PatP|||alter table MyTable Add
DateAuto datetime CONSTRAINT DF_DateAuto DEFAULT (GetDate())|||thank you Pat Phelan and hmscott

great ! and fast !!!

Alter Table

Warning: The table 'top32_kan_g2_nb' has been created but its maximum row size (14199) exceeds the maximum number of bytes per row (8060). INSERT or UPDATE of a row in this table will fail if the resulting row length exceeds 8060 bytes.

This is the message I am getting, when i have altered the table definition(i.e. copy the table and pasted in Query Analyzer) using alter.My requirement is to delete some fields from the table at EOD daily. The query is executed but the above warning message appears and the fields I required has been deleted.
Is the above message important or can I use the same method again.As you are removing some of the fields using alter it can work for you provided that it follows the mentioned condition in the warning.

Contact your DBA regarding the warning message .|||

Quote:

Originally Posted by balasach82

Warning: The table 'top32_kan_g2_nb' has been created but its maximum row size (14199) exceeds the maximum number of bytes per row (8060). INSERT or UPDATE of a row in this table will fail if the resulting row length exceeds 8060 bytes.

This is the message I am getting, when i have altered the table definition(i.e. copy the table and pasted in Query Analyzer) using alter.My requirement is to delete some fields from the table at EOD daily. The query is executed but the above warning message appears and the fields I required has been deleted.
Is the above message important or can I use the same method again.

try doing a

SELECT only, selected, fields, here INTO NEWTABLE from DAILYTABLE..

Alter column causing log to fill

I'm trying to simply change a column definition from Null to Not Null. It's
a multi million row table. I've already checked to make sure there are no
nulls for any rows and a default has been created for the column. My log is
set to autogrow and as the alter column colname char(6) Not Null runs the
log begins to grow. If I use no check BOL say the optimizer won't consider
the change. How can I change the nullability of a column that currently
contains no nulls without using up extreme amounts of log space?

DannyDanny (istdrs@.flash.net) writes:
> I'm trying to simply change a column definition from Null to Not Null.
> It's a multi million row table. I've already checked to make sure there
> are no nulls for any rows and a default has been created for the column.
> My log is set to autogrow and as the alter column colname char(6) Not
> Null runs the log begins to grow. If I use no check BOL say the
> optimizer won't consider the change. How can I change the nullability
> of a column that currently contains no nulls without using up extreme
> amounts of log space?

I guess the reason that the log grows, is that SQL Server needs to update
internal data structures in each page on the table. For each row there
is a bitmap that specifies which columns in the row that have the NULL
value. If you take make one column NOT NULL, then the bitmap is affected,
at least if it is not the last column in the map.

CHECK/NOCHECK has nothing to do with it, verifying the constraint does not
take any log space. (And SQL Server won't let you to say that a column is
NOT NULL without checking it, to save its own sanity.)

So the only other option to ALTER TABLE, is to take the long way: Rename
the table, create a new table, insert over, restore indexes, triggers and
constraints, move referencing foreign keys and drop the old table. When
you insert data over, you can do it in batches, and with the database
in simple recovery, the log growth will not be equally excessive. A
variation of this with even less log usage may be to bulk out the data,
and load the new table with BCP.

--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techin.../2000/books.asp

Allow NULL or Define DEFAULT Value

I am designing a new table with a few columns that may or may not have
a value on each row that is inserted.

What issues determine whether to allow a NULL value to be inserted for
that column or define a default value to be used?

I want to think through the repercussions of this decision before I get
into production.binder wrote:

Quote:

Originally Posted by

I am designing a new table with a few columns that may or may not have
a value on each row that is inserted.
>
What issues determine whether to allow a NULL value to be inserted for
that column or define a default value to be used?
>
I want to think through the repercussions of this decision before I get
into production.

Quote:

Originally Posted by

>From a programmatic standpoint, if I have a column that may or may not

have a value, is it better to insert a default value that indicates no
value was entered, such as 0 for a userid, or insert a NULL value?|||binder (rgondzur@.gmail.com) writes:

Quote:

Originally Posted by

binder wrote:

Quote:

Originally Posted by

>I am designing a new table with a few columns that may or may not have
>a value on each row that is inserted.
>>
>What issues determine whether to allow a NULL value to be inserted for
>that column or define a default value to be used?
>>
>I want to think through the repercussions of this decision before I get
>into production.

>
From a programmatic standpoint, if I have a column that may or may not
have a value, is it better to insert a default value that indicates no
value was entered, such as 0 for a userid, or insert a NULL value?

Programmatic? That's the wrong standpoint to look at it. You should look
at what it means.

Say that you have a column called whotoblameusrid, and no explicit value
is inserted. If you let it be NULL, means that in this case there is
no one to blame. (After all, anyone who is acquainted with Elvis Costello's
early material knows that Accidents can Happen.) If you use a default
value of 0 and 0 is Cain's user id, this mean that we Blame it on
Cain when no one else is at fault. (Costello fans know what I'm talking
about.)

But must 0 be a certain user? Yes, because good database design says
that a userid should be a foreign key to a table that defines users,
so there must be a user with id 0.

This also applies to non-key columns. Say a column that represents
an amount, for instance the cost for something. NULL would indicate
that the price is unknown (and we probably should not sell it). 0
means that the goods is for free.

That is not to say that default values should not be used. For instance
if you open a new account, it makes perfect sense to have default of
0 for the holdingsamt column, because you start with 0 and you may
not make a deposit immediately.

Simply, having NULL or a default value depends on what not entering a
value means. And by the way, a column could permit NULLs, but still have
a default value, because it's only exceptional that the value is not
known. For instance, a column "citizenof" could very well have the
default value of SE for a Swedish system, but the column must permit
NULL to account for stateless persons.

--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/pr...oads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodin...ions/books.mspx|||Erland Sommarskog wrote:

Quote:

Originally Posted by

>
Programmatic? That's the wrong standpoint to look at it. You should look
at what it means.
>
Say that you have a column called whotoblameusrid, and no explicit value
is inserted. If you let it be NULL, means that in this case there is
no one to blame. (After all, anyone who is acquainted with Elvis Costello's
early material knows that Accidents can Happen.) If you use a default
value of 0 and 0 is Cain's user id, this mean that we Blame it on
Cain when no one else is at fault. (Costello fans know what I'm talking
about.)
>
But must 0 be a certain user? Yes, because good database design says
that a userid should be a foreign key to a table that defines users,
so there must be a user with id 0.
>
This also applies to non-key columns. Say a column that represents
an amount, for instance the cost for something. NULL would indicate
that the price is unknown (and we probably should not sell it). 0
means that the goods is for free.
>
That is not to say that default values should not be used. For instance
if you open a new account, it makes perfect sense to have default of
0 for the holdingsamt column, because you start with 0 and you may
not make a deposit immediately.
>
Simply, having NULL or a default value depends on what not entering a
value means. And by the way, a column could permit NULLs, but still have
a default value, because it's only exceptional that the value is not
known. For instance, a column "citizenof" could very well have the
default value of SE for a Swedish system, but the column must permit
NULL to account for stateless persons.
>
--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se
>
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/pr...oads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodin...ions/books.mspx

Don't forget the third option: decompose the optional attribute(s) into
another table. To extend Erland's example, the WhoToBlameUsrID can go
in a table along with any other columns that relate only to Blame.

CREATE TABLE Who (WhoID INT NOT NULL PRIMARY KEY /* ... The required
attributes for the Who table ... */);

CREATE TABLE Blame (WhoID INT NOT NULL PRIMARY KEY REFERENCES Who
(WhoID), WhoToBlameUsrID INT NOT NULL /* ... The optional "Blame"
attributes ... */);

The principle at work here is that an entity is determined by its
unique set of attributes. If you analyse the functional dependencies
you find you have more entities than you currently have tables for -
that's what tells you to decompose.

In SQL Server this approach has one special advantage. SQL Server's
UNIQUE constraint treats nulls like values. The constraint doesn't
permit nulls to be duplicated, which means that unique constraints are
of limited use for optional attributes. So if an optional column may
need to be part of a unique constraint you should certainly consider
the decomposition approach.

--
David Portas, SQL Server MVP

Whenever possible please post enough code to reproduce your problem.
Including CREATE TABLE and INSERT statements usually helps.
State what version of SQL Server you are using and specify the content
of any error messages.

SQL Server Books Online:
http://msdn2.microsoft.com/library/...US,SQL.90).aspx
--