make union of '2 if condition' queries

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SQL

IF(DATEPART(dd,GETDATE())=(SELECT CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(GETDATE())-1),GETDATE()),112))
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT SUBSTRING(CONVERT(VARCHAR(25),DATEADD(mm, DATEDIFF(m,0,getdate())-1,0),112),1,6)+’16′)
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT SUBSTRING(CONVERT(VARCHAR,GETDATE(),112),1,6)+’16′)
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(GETDATE())-1),GETDATE()),112))
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(GETDATE())-1),GETDATE()),112))
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT SUBSTRING(CONVERT(VARCHAR(25),DATEADD(mm, DATEDIFF(m,0,getdate())-1,0),112),1,6)+’16′)
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT SUBSTRING(CONVERT(VARCHAR,GETDATE(),112),1,6)+’16′)
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) <=CONVERT(VARCHAR,GETDATE(),112) GROUP BY VCR_PAY_TO
END

–UNION ALL

IF(DATEPART(dd,GETDATE())=(SELECT CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(GETDATE())-1),GETDATE()),112))
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT SUBSTRING(CONVERT(VARCHAR(25),DATEADD(mm, DATEDIFF(m,0,getdate())-1,0),112),1,6)+’16′)
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT SUBSTRING(CONVERT(VARCHAR(25),DATEADD(mm, DATEDIFF(m,0,getdate())-1,0),112),1,6)+’16′)
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT SUBSTRING(CONVERT(VARCHAR,GETDATE(),112),1,6)+’16′)
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(GETDATE())-1),GETDATE()),112))
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) =(SELECT CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(GETDATE())-1),GETDATE()),112))
AND CONVERT(VARCHAR,VCR_VOUCHER_DT,112) <=CONVERT(VARCHAR,GETDATE(),112) GROUP BY VCR_PAY_TO
END

hi all, i need to make union of this 'two if condition' Queries with groupby clause,
please help…… Thanks in advance

Posted 7-Aug-11 21:21pm

karthika -chennai

Updated 7-Aug-11 21:25pm

thatraja

v4

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OriginalGriff · Answer 1 · 2011-08-07T21:32:00

This won't solve your immediate problem, but it is a very bad idea to do repeated calls to GETDATE - if the database server time approaches midnight, you can get some very strange, intermittent bugs which can be next to impossible to track down. Instead, declare server variables which hold the current date and / or the relevant components. You may find this improves your execution performance at the same time.

Maciej Los · Answer 2 · 2011-08-11T09:13:00

I agree with OriginalGriff!

Try to use variables and see results:

SQL

SET DATEFORMAT ymd; 

DECLARE @aDay VARCHAR(25)
DECLARE @eDay VARCHAR(25)
DECLARE @aQry1 VARCHAR(2000)
DECLARE @aQry2 VARCHAR(2000)
DECLARE @aQry3 VARCHAR(2000)

SET @aDay = CONVERT(VARCHAR, GETDATE())
SET @eDay = CONVERT(VARCHAR, DATEADD(dd,-(DAY(@aDay)-1),@aDay))

SET @aQry1 = 'SELECT ''' + @aDay + ''' AS [Today]'
--EXEC(@aQry1)

SET @aQry2 = 'SELECT ''' + @eDay + ''' AS [ExpectedDate]'
--EXEC(@aQry2)

SET @aQry3 = @aQry1 + ' UNION ALL ' + @aQry2
EXEC(@aQry3)

GROUP BY clause is reserved for aggregate functions in the SELECT queries to provide information about each group instead of individual rows. More about this clause you'll find at msdn site[^].

make union of '2 if condition' queries

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