Short for
Transaction-SQL, an extended form of
SQL that adds
declared variables, transaction control, error and
exception handling and row processing to SQL’s existing functions.
Microsoft SQL and Sybase both support T-SQL statements. Up until version 4.2, the Microsoft SQL Server and Sybase relational database were developed together to work together. It should be noted that Sybase refers to its statements as T-SQL while Microsoft refers to its statements as Transaction-SQL.