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Transaction Control Language : ウィキペディア英語版 | Transaction Control Language
A Transaction Control Language (TCL) is a computer language and a subset of SQL, used to control transactional processing in a database. A transaction is logical unit of work that comprises one or more SQL statements, usually a group of Data Manipulation Language (DML) statements. Examples of TCL commands include: *COMMIT to apply the transaction by saving the database changes. *ROLLBACK to undo all changes of a transaction. *SAVEPOINT to divide the transaction into smaller sections. It defines breakpoints for a transaction to allow partial rollbacks. ==See also==
* Data Definition Language * Data Manipulation Language * Data Control Language
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Transaction Control Language」の詳細全文を読む
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