What is OLTP in SQL Server? › Category: SQL › What is OLTP in SQL Server? 0 Vote Up Vote Down Editor">Editor Staff asked 2 years ago What is OLTP in SQL Server? 1 Answers 0 Vote Up Vote Down Editor">Editor Staff answered 2 years ago OLTP means Online Transaction Processing which follows rules of data normalization to ensure data integrity. Using these rules, complex information is broken down into a most simple structure.