Re: Validations Required before starting polling in SQL receive adapter.

You can use two different SQL Receive locations with schedule
in receive port that is

You can set timing by selecting ’Schedule’ option available in
receive location.

In your scenario

First receive location pull 200 records from SQL and
schedule 6PM to 12AM

Second receive location pull 2000 records form SQL and
schedule 12AM to 6PM

Add Both Service locations in your receive port.