Given databases x, y with matching schemas:
//for all entries in x.MY_TABLE
// if PRIMARY_KEY of entry exists in y.MY_TABLE
// if {data of entry in x} doesn't match {data of matching entry in y}
// print PRIMARY_KEY
// else
// print PRIMARY_KEY
Assume that the table is a simple system with at most a 2-column primary key.
So you want a list of all primary keys in x
unless the key and data (ie the entire row) is the same. I think this should do it.
SELECT PRIMARY_KEY
FROM
(
SELECT * FROM x.MY_TABLE
MINUS
SELECT * FROM y.MY_TABLE
) T;
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