Compare Rows In 2 Tables, Return Them If Different

Rows in table A that have a business status of 'open' are written to table B (on a different db) on a daily basis.

I have managed to extract the relevant rows in table A and table B.

What I now need to do is compare table A, row N with table B row N and return them both if the values differ.


What is the best way of doing this

e.g.

Table A

customerId amount
1 200
2 106 *return this row*
3 412


Table B (filtered by MAX(audit date))

customerID amount
1 200
2 100 *return this row*
3 412



?