I guess my first question is about the TAB1 and TAB2 tables you're inserting into. Do they both have an ID column?

The next one would be about all your databases that match SLX%. Does the employee table in each one have an ID column?

Because the errors you posted are using the lower case "id" instead of the upper case ones you used in the column list for the insert, my guess is that you have a database out there that starts with SLX that contains an employee table without an id column.