In this syntax, `ROLLBACK` simply reverts all operations performed in the current transaction. Note that `ROLLBACK` is only applicable in storage engines that support transactions, such as InnoDB, and is not applicable in non-transactional storage engines like MyISAM. ...
COMMIT’s syntax with optional sub-clauses in square brackets is: COMMIT [WORK] [AND [NO] CHAIN] [[NO] RELEASE] The COMMIT WORK statement is equivalent to the COMMIT statement. 4.1. Example Let’s start a new transaction in a MySQL session and add new data: START TRANSACTION; INSERT I...
In MariaDB one can also use a simplified syntax: AI检测代码解析 CREATE TABLE t ( x INT ) WITH SYSTEM VERSIONING; 1. 2. In the latter case no extra columns will be created and they won't clutter the output of, say,SELECT * FROM t. The versioning information will still be stored, a...
START TRANSACTION is standard SQL syntax, is the recommended way to start an ad-hoc transaction, and permits modifiers that BEGIN does not. The BEGIN statement differs from the use of the BEGIN keyword that starts a BEGIN ... END compound statement. The latter does not begin a transaction...
START TRANSACTION is standard SQL syntax, is the recommended way to start an ad-hoc transaction, and permits modifiers that BEGIN does not. The BEGIN statement differs from the use of the BEGIN keyword that starts a BEGIN ... END compound statement. The latter does not begin a transaction...
MySQL :: MySQL 8.0 Reference Manual :: 13.3.1 START TRANSACTION, COMMIT, and ROLLBACK Syntax https://dev.mysql.com/doc/refman/8.0/en/commit.html 【如果在select读的情况下,假如认为对数据库无影响无烙印的操作,那么commit提交,就没有必要】 ...
mysql> create table innodb_monitor(a INT) ENGINE=INNODB; Query OK, 0 rows affected (0.05 sec) 1. 2. 然后通过下面语句来进行查看: AI检测代码解析 mysql> show engine innodb status; | Type | Name | Status | InnoDB | | ... --- TRANSACTIONS --...
Re: Exit Handler syntax to rollback a transction... 3628 Peter Gallati March 13, 2007 01:56PM Sorry, you can't reply to this topic. It has been closed.Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and ...
BEGINandBEGIN WORKare supported as aliases ofSTART TRANSACTIONfor initiating a transaction.START TRANSACTIONis standard SQL syntax and is the recommended way to start an ad-hoc transaction. TheBEGINstatement differs from the use of theBEGINkeyword that starts aBEGIN... ENDcompound statement. The lat...
Syntax rollback(conn) Description rollback(conn) reverses changes made to a database using datainsert, fastinsert, insert, or update via the database connection conn. The rollback function reverses all changes made since the last COMMIT or ROLLBACK operation. To use rollback, the AutoCommit ...