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pdighade
New User
Joined: 21 Jul 2008
Posts: 40
Location: pune
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I am having following data in table ABC
DSNAME CRDATE CRTTIME VOLNO
A.G3544V00 12-31-2008 2:00:00 e4123
A.G3545V00 01-01-2009 2:20:00 e4163
A.G3545V00 01-01-2009 2:23:00 e4423
A.G3546V001 01-01-2009 23:23:12 e4823
C.G3593V00 02-01-2009 23:40:12 e4143
C.G3604V00 03-01-2009 23:11:12 e4199
I want to write a query like
select DSNAME ,CRDATE, CRTTIME,VOLNO fro table abc
where CRDATE = '12-31-2008' and CRTTIME > '16:00:00'
CRATE IS 'SOME DAY' WHICH MAY CHANGE
UNION
select DSNAME ,CRDATE, CRTTIME,VOLNO fro table abc
where CRDATE = '01-01-2009' and CRTTIME < '16:00:00'
CRATE IS 'NEXT DATE OF DATE ENTERED IN PREVIOUS QUERY'
tHIS UNION WILL RETUEN ONE OR MANY ROWS AND NOW IF IT RETURN MORE THAN ONE ROW
FOR E.G IN ABOVE CASE IT IS RETURNING BELOW TWO ROWS TWO ROWS THEN I WANTED TO CHECK THE LAST QUALIFIER
G3545V00 OF BOTH THE ROWS ARE SAME OR NOT. IF SAME THEN OK ELSE I WANT TO THROW ERROR MESSAGE
i WANT TO ADD THIS CONDITON IN ABOVE UNION QUERY OR ANY QUERY THAT YOU SUGGEST
A.G3545V00 01-01-2009 2:20:00 e4163
A.G3545V00 01-01-2009 2:23:00 e4423 |
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Craq Giegerich
Senior Member
Joined: 19 May 2007
Posts: 1512
Location: Virginia, USA
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Is crdate defined as a date column and crtime defined as a time column? If you get multiple rows your program will have to check the last qualifier.
| Code: |
SELECT DSNAME ,CRDATE, CRTTIME,VOLNO FROM ABC
WHERE CRDATE = :SOMEDATE AND CRTIME <= :SOMETIME
UNION ALL
SELECT DSNAME ,CRDATE, CRTTIME,VOLNO FROM ABC
WHERE CRDATE = :SOMEDATE + 1 DAY AND CRTIME <= :SOMETIME;
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pdighade
New User
Joined: 21 Jul 2008
Posts: 40
Location: pune
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| What will be the query if i want intersaction of these two queries because interect keyword doesn't upport DB2 |
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