Multiple Table Join in DB Connect

In the SQL Query of a Database Input, is it possible to join multiple tables while preserving the rising column as the tailing value?

For example the following returns a "SQL command not properly ended" error :

SELECT * FROM employee a, dept b {{WHERE a.$rising_column$ > ?}} AND a.salary = b.salary

But when I input the following SQL, the command works but infinite copies of the same rising_column value are put into the index flooding the index until I stop Splunk:

SELECT * FROM employee a, dept b {{WHERE a.salary = b.salary AND a.$rising_column$ > ?}}

I further tried writing the query this way, but no results were returned:

select * from employee a NATURAL JOIN dept b {{WHERE a.$rising_column$ > ?}}

Is there a way to write a multiple table join another way?