Question

Currently I am using the following code:

$sql = sprintf("SELECT * FROM users WHERE email = '%s' and password = '%s'", $email, $password);

I want to accomplish the following:

$sql = sprintf("SELECT * FROM database1.users AND database2.users WHERE email = '%s' and password = '%s'", $email, $password);

I need to check for the possibility that a user exists in either table.

Any suggestions on how to handle this?

Answer 1

You can use a UNION to combine both queries:

SELECT * FROM database1.users WHERE email = '%s' and password = '%s'
UNION
SELECT * FROM database2.users WHERE email = '%s' and password = '%s'