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Re: Result Set Differentiation..!!
Posted by: Rick James
Date: March 04, 2012 06:58PM

I do _not_ understand what you are trying to do. See if this helps:

(select 1 as rs, col1, col2, col3 from db.tbl where condition) as rsdb1)
UNION ALL
(select 2 as rs, col1, col2, col3 from db.tbl2 where condition) as rsdb2)
UNION ALL
(select 3 as rs, col1, col2, col3 from db.tbl3 where condition) as rsdb3)
UNION ALL
(select 4 as rs, col1, col2, col3 from db.tbl4 where condition) as rsdb4)
;

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Re: Result Set Differentiation..!!
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