When you need only rows, where their count in group is for example greater than 1, use this code with
having clause:
select prodid, itemid, index, count(*)
from cieb_ivecofvvlabels
group by prodid, itemid, index
having count(*) > 1;
Output:
prodid itemid index count
-------------------- ---------------------------------------- ----------- -----------
17-045164 5801-285-899_0_0000 1 2
17-045164 5801-285-899_0_0000 2 2
17-045164 5801-285-899_0_0000 3 2
17-045164 5801-285-899_0_0000 4 2
17-045165 5801-285-899_0_0000 1 2
...
Another variant is to use subselect on base select.
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