sql server - sql help to find out multiple entries -
i have table t1
values
col1 col2 1 2 1 4 1 4 2 4 2 4 3 5 3 5 4 3 4 3 5 1 5 1 5 6 5 6
i need output
1 2 1 4 5 1 5 6
that when col2
has multiple entries interested in records only.
any help?
one way of doing it:
select col1, col2 t1 col1 in (select col1 t1 group col1 having count(distinct col2) > 1) group col1, col2
the query should pretty self-explanatory.
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