I have 3 tables which design wise are set up the same. The data is different.
I set up a query to compare records in 2 of the tables and there are about 30,000 records which are missing from one table. I want to take these 30,000 records and add them into the 3rd table. What would be the fastest and most effective way to do so? I am not an experienced in SQL queries so please help the best you can.
Thanks.