Transaction Control Statement

Commit Command

A COMMIT command issued implicitly or explicitly permanently saves the DML statements issued previously

• An explicit COMMIT occurs when you enter a COMMIT statement
• An implicit COMMIT occurs when you exit client tools, such as SQL Developer. It also occurs if a DDL command, such as CREATE or ALTER TABLE, is issued. In other words, if a user adds several records to a table and then creates a new table, the records added before the DDL command is issued are committed automatically (implicitly).
• By contrast, commands such as CREATE TABLE, TRUNCATE TABLE, and ALTER TABLE can’t be rolled back because they are DDL commands, and a commit occurs automatically when they’re executed

SavePoint Command =

developers sometimes use the SAVEPOINT command to create a type of bookmark in a transaction. This command is commonly used in the banking industry

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