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add column with count of how many there are inside to the distinct group

add column with count of how many there are inside to the distinct group

add column with count of how many there are inside to the distinct group

(OP)
Hi,

I have a case with two tables to join and three of the columns of the first table should be distinct. I want those three columns and one column of the second table and the count of how many rows there are inside of the distinct group.

So table TA contains A, B, C, D

table TB contains B, E

how to get the distinct (A, B, C) and E and the count of the rows inside of the distinct (A, B, C).

Thanks very much for any help!

Regards,

Crox

RE: add column with count of how many there are inside to the distinct group

untested:

select ta.a, ta.b, ta.c, bcount from ta
where bcount = (select count(*) from tb
where ta.b = tb.b)

btw, this is not DB2 specific, so the question could also be asked in the ANSI_SQL forum, or an Oracle or SQL Server forum. Those forums are more heavily travelled within Tek-Tips than this one.

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