Encloses a series of Transact-SQL statements so that a group of Transact-SQL statements can be executed. BEGIN and END are control-of-flow language keywords.
In the following example, BEGIN and END define a series of Transact-SQL statements that execute together. If the BEGIN...END block were not included, both ROLLBACK TRANSACTION statements would execute and both PRINT messages would be returned.
USE AdventureWorks2012; GO BEGIN TRANSACTION; GO IF @@TRANCOUNT = 0 BEGIN SELECT FirstName, MiddleName FROM Person.Person WHERE LastName = 'Adams'; ROLLBACK TRANSACTION; PRINT N'Rolling back the transaction two times would cause an error.'; END; ROLLBACK TRANSACTION; PRINT N'Rolled back the transaction.'; GO /* Rolled back the transaction. */