I have a database with 12 tables. I want to do a simple query where I would
get the count of three different tables.

Count(TableA)
Count(TableB)
Count(TableC)

All three tables have the same primary key. The query fuctions when I only
deal with 2 tables. But when I deal with more than that I get this error:

The SQL statement could not be executed becuase it contains ambiguous outer
joins. To force one of the joins to performed first, create a separate query
that performs the first join and then include that query in your SQL
statement.

Any idea what I'm doing wrong. Thanks.