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I have an SQL view that is basically doing the following, in addition to a bunch of other stuff:
SELECT
CASE WHEN (SELECT 1 FROM SYSIBM.SYSDUMMY1) IS NOT NULL
THEN 'I am awesome'
ELSE 'The computer has won' END
FROM SYSIBM.SYSDUMMY1
This was working fine until the subselect ended up being 2 rows such as this:
SELECT
CASE WHEN (SELECT 1 FROM SYSIBM.SYSDUMMY1
UNION SELECT 2 FROM SYSIBM.SYSDUMMY1 ) IS NOT NULL
THEN 'I am awesome'
ELSE 'The computer has won' END
FROM SYSIBM.SYSDUMMY1
This gives the following Message: [SQL0811] Result of SELECT more than one row.
It looks like I should be able to use an EXISTS predicate, but I can't seem to get that to work either.
SELECT
CASE WHEN EXISTS (SELECT 1 FROM SYSIBM.SYSDUMMY1)
THEN 'I am awesome'
ELSE 'The computer has won' END
FROM SYSIBM.SYSDUMMY1
This gives the follwing Message: [SQL0104] Token EXISTS was not valid. Valid tokens: <IDENTIFIER> <INTEGER> <CHARSTRING> <GRAPHSTRING>
Using IN didn't work either, giving the following Message: [SQL0115] Comparison operator IN not valid.
I'm not quite sure what else to try, any help would be appreciated. Thanks.
-Tom Stieger
California Fine Wire
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