In 1970's the item called 'Continuation', organized English inquiry language, created by IBM and later SEQUEL was renamed to 'SQL' which represents Structured Query Language.
In 1986, SQL was affirmed by ANSI (American public Standards Institute) and in 1987, it was endorsed by ISO (International Standards Organization).
SQL is a design inquiry language which is a typical information base language for all RDBMS items. Distinctive RDBMS item merchants have built up their own information base language by broadening SQL for their own RDBMS items.
T-SQL represents Transact Structure Query Language which is a Microsoft item and is an expansion of SQL Language.
Example
- MS SQL Server - SQL\T-SQL
- Prophet - SQL\PL-SQL