Use of Pivot

Question

Hi All,
I need to add an additional column to the below list here the [approved] column is a sum of list of columns from the second select stm in the code "SELECT @COL += N', ' + QUOTENAME([RN])" which gives values as col1+col2+col3....
so on
I need to add YES if the sum gives some results else I need to add NO(if sum of col1+..+Coln is 0) value to [Approved] column in the output.
I am ok if second select is written in a different way( remember that col1..Coln list is big) everything is working file I just need to add this [Approved] column to this list, which will hv the value as Yes/No based the sum of Col1+Col2....+Coln
'''' AS [Approved], -- here is the colulmn I want to ADD as YES or NO
DECLARE
@COL NVARCHAR(MAX) = N'',
@COL2 NVARCHAR(MAX) = N'',
@Sql NVARCHAR(MAX);
SELECT @COL += N', ' + QUOTENAME([RN])
FROM [dbo].[Defination]
WHERE [IsActive] = 1
AND [type]='XX'
ORDER BY [RNo];
--This gives me list of columns comma separated col1,col2,col3...
SELECT @COL2 += N'+' + QUOTENAME([RN])
FROM [dbo].[Defination]
WHERE [IsActive] = 1
AND [RuleType]='XX'
ORDER BY [RNo];
SELECT @COL2 = SUBSTRING(@Columns2,2,LEN(@Columns2))
-- this gives me the list of columns with sum like col1+col2+col3....
SET @Sql = N'
SELECT [EFid], [EFNm],[Estatus],[Approved]' + @COL + N'
FROM
SELECT
[EP].[EFid],
[EP].[EFNm],
[EP].[Estatus],
'''' AS [Approved], -- here is the colulmn I want to ADD as YES or NO based on the Summation result of Col1+Col2... from @col2
[RD2].[Rno],
1 AS [Item]
FROM EPF AS [EP]
LEFT JOIN [ETL].[RRRow] AS [RRR]
ON [RRR].[ExtractDateID] = [EP].[ExtractDateID]
AND [RRR].[SourceID] = [EP].[SourceID]
) [EP]
PIVOT (COUNT([Item]) FOR [Rno] IN (' + SUBSTRING(@Columns, 2, LEN(@Columns) - 1) + ')) AS pvt
ORDER BY [EFid]';
EXECUTE sp_executesql @Sql;
Sample output is as below
EFid]  [EFNm] [Estatus] [Approved] [col1] [col2]...
11      xx         valid        Yes            10     0
12      yy         valid        NO        
    0       0  --
As the sum of col1 and col2 is 0 hence approved col has NO value, i need drive this value
Neil

Answer 1

A screen shot isn't DDL...
DDL & test data looks like this...
CREATE TABLE dbo.SomeEntity (
EntityKeyCol INT NOT NULL PRIMARY KEY,
AttributeCol1 VARCHAR(10) NOT NULL,
AttributeCol2 VARCHAR(10) NOT NULL,
AttributeCol3 VARCHAR(10) NOT NULL
INSERT dbo.SomeEntity (EntityKeyCol,AttributeCol1,AttributeCol2,AttributeCol3) VALUES
(1,'Some','Stuff','to'),
(2,'Actually','test','sql'),
(3,'scripts','with','.')
CREATE NONCLUSTERED INDEX ix_SomeEntity_AttributeCol2 ON dbo.SomeEntity (
AttributeCol3)
INCLUDE (
EntityKeyCol,
AttributeCol1)
This way the people who are trying to help you know exactly what kind of data structures you're working with. They know what your keys, constraints and indexes are. And... (perhaps most importantly) they can actually spend their time working on a solution
instead of trying to reverse engineer your table schema or trying to concoct reliant test data.
Hint... The easiest way to do this... Right click the table name in the object explorer and choose Script Table AS > CREATE To > New Query Editor Window
That'll give you the full table DDL and all of the other pertinent pertinents. :)
Then it's just a matter adding the insert statement... I've found that dumping some data into excel and formatting it there is helpful. especially it the data needs to be obfuscated before you release it into the wild.
HTH,
Jason
Jason Long