Learn SQL Server - Parts of SQL – DDL, DML, DCL, TCL SQL originally developed by IBM in 1970’s for their DB2 RDBMS. It became the standard since then. All of the RDBMS today are confirm with ANSI SQL92 standard. SQL Server has added more proprietary functionality to this to come up with new dialect of SQL called as Transact-SQL. Here we will be discussing how T-SQL is ..