Provided that the tables aren't too big, I'd think about using $dbh->selectall_arrayref("...") to slurp each pair of tables into memory, use Data::Dumper to turn them into strings, and something diff-ish to find differences.

If the tables are too big for that, then you'll need to do a bit more work. For each pair of tables, get a list of the values of the primary key(s), and find any differences - that'll catch added and deleted records. Then you'll also need to compare the individual records for each value of the primary key that is common to both tables

In reply to Re: Comparing databases - what is the best way? by DrHyde
in thread Comparing databases - what is the best way? by Win

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