Question

I am trying to think of a query that will search a table for matching values across 2 fields.

For example, what would be the query to identity tbl_id 202 and tbl_id 203 as having matching values in both tbl_row and tbl_col?

Thanks

tatty27

Answer 1

select distinct t1.tbl_id
from
    tbl as t1
    inner join tbl as t2
        on t1.tbl_row = t2.tbl_row
        and t1.tbl_col = t2.tbl_col
        and t1.tbl_id <> t2.tbl_id