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Posted by --CELKO-- on 10/22/05 11:04
Please post DDL, so that people do not have to guess what the keys,
constraints, Declarative Referential Integrity, data types, etc. in
your schema are. Sample data is also a good idea, along with clear
specifications. It is very hard to debug code when you do not let us
see it.
What you did post makes no sense. There is no consistent definition of
these tables, since the coumns change from month to month. You cannot
compare them at all.
The GROUP BY can be replaced with a SELECT DISTINCT in your pseudo-code
There is no date value to use for the groupings. Etc. What are you
trying to do?
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