Welcome to the Linux community forum and interact with 2 million technical staff to introduce how to solve Mysql data rollback errors. You can refer to the following two methods for MYSQL transaction processing. 1. Use begin, rollback, and commit to
Transactions are required to meet 4 conditions (ACID): atomicity (autmic), consistency (consistency), isolation (isolation), persistence (durability)
Atomicity (autmic): The transaction is in execution, to do "either do it or do it all!" ", which
Analysis of Mysql data Rollback Error solution bitsCN.com
Solutions to Mysql data rollback errors
This section describes how to solve Mysql data rollback errors. For more information, see
There are two main methods to process MYSQL transactions.
Here's a little bit of knowledge of PHP operating MySQL businessYou know, the default behavior of MySQL is to execute a COMMIT statement after each SQL statement executes, effectively independently of each statement as a single transaction. However,
Mysql_query ("BEGIN"); // starts a transaction.Mysql_query ("set autocommit = 0"); // you can specify that the transaction is not automatically committed.$ Insert = "insert into userinfo VALUES ('aa12', 'A', '1', 'aaa ')";Mysql_query ($ insert
1. What is sqlplus? Sqlplus is an interactive tool for batch query. Sqlplus is installed for each oracle database. Sqlplus works in the command line mode. SQL * Plus has its own command set and environment. Sqlplus provides users with a way to
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There are two main ways to handle MySQL transactions.
1, with Begin,rollback,commit to achieve
Begin a transaction
ROLLBACK TRANSACTION Rollback
Commit TRANSACTION Acknowledgement
2, directly with set to change the MySQL automatic submission mode
[Mysql] pessimistic lock, mysqlMysql locks
In a concurrent environment, Dirty Read, Unrepeatable Read, Phantom Read, and Lost update may occur, therefore, mysql introduces many lock concepts.
MySQL InnoDB locks data rows in four types: Shared locks (
The official description of the three main APIs that PHP connects to the MySQL database server is as follows:http://php.net/manual/zh/mysqli.overview.phpPHP MySQL and mysqli transactionsIn PHP, MYSQLI has already encapsulated the operation of MySQL
PHP and MySQL transaction processing php and MySQL transactions/*There are two main ways to handle MySQL transactions. 1, the implementation begins with Begin,rollback,commit a transaction ROLLBACK TRANSACTION rollback COMMIT TRANSACTION
Log into server[Email protected]_25 ~]# su-mysql[[email protected]_25 ~]$ mysql.localwelcome to the MySQL monitor. Commands End With; or \g.your MySQL connection ID is 126000553Server version:5.5.27-log sourcedistribution Copyright (c) # D, Oracle
First, mysqli connections are permanent connections, while mysql does not. What does it mean? Mysql will re-open a new process whenever it is used for the second time, while mysql uses only the same process, in this way, the pressure on the server
For reprint, please indicate the source: http: blogcsdnnetguoyjoearticledetails48805847 ********************************** MySQL lock management mechanism **********************************
MySQL lock management mechanism
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Mysql stored procedure thing management ACID: Atomic, Consistent, Isolated, Durable storage provides an excellent mechanism to define, encapsulate, and manage transactions. 1. MySQL transaction support is not bound to the MySQL server itself, but
This article provides an excellent mechanism to define, encapsulate, and manage transactions. For more information, see
This article provides an excellent mechanism to define, encapsulate, and manage transactions. For more information, see
ACID:
MySQL Stored Procedure Transaction Management and mysql Stored Procedure transaction
ACID: Atomic, Consistent, Isolated, Durable
A storage program provides an excellent mechanism to define, encapsulate, and manage transactions.
1. MySQL
First, mysqli connections are permanent connections, while mysql does not. What does it mean? Mysql will re-open a new process whenever it is used for the second time, while mysqli only uses the same process, which can greatly reduce the pressure on
First, the MYSQLI connection is a permanent connection, and MySQL is a non-permanent connection. What do you mean? The MySQL connection will reopen a new process whenever it is used for the second time, while Mysqli will only use the same process,
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