Good point, make that only apply to fixed length chars (not varchars). I think JOINs use indexes which are often done on the primary key. https://www.mssqltips

Good point, make that only apply to fixed length chars (not varchars). I think JOINs use indexes which are often done on the primary key. https://www.mssqltips.com/sqlservertutorial/3207/make-sure-all-join-columns-are-indexed/ https://www.mssqltips.com/sqlservertutorial/3207/make-sure-a...