I have 2 tables.
Table A has existing records
Table B has new records to be updated into Table A.
However, I need to avoid duplication. What would be the best way to insert the data from table B into table A, but only if the data doesnt already exist in Table A. Is there a clause/function I can use?
Thanks
If riding in a plane is flying, then riding in a boat must be swimming. To experience the element, get out of the vehicle. Skydive!
If riding in a plane is flying, then riding in a boat must be swimming. To experience the element, get out of the vehicle. Skydive!