I am trying to run a simple unmatched query on 2 tables:
I have a block of 5000 telephone numbers in one table. I have downloaded all of the numbers from my phone system into another table.
All I want to know is which of the 5000 numbers is not being used.
I am banging my head against the wall on this one.
Please help!
I have a block of 5000 telephone numbers in one table. I have downloaded all of the numbers from my phone system into another table.
All I want to know is which of the 5000 numbers is not being used.
I am banging my head against the wall on this one.
Please help!