php mysql transaction commit rollback

MySQL's transactional support is not tied to the MySQL server itself, but is related to the storage engine 1. MyISAM: Transaction not supported, for read-only program lift high performance 2.InnoDB: Acid transaction, row level lock, concurrent

Some people on the internet say that SQL statement execution error or program error after opening a transaction without executing rollback, the next run will automatically commit Program error does not roll back rollback However, some people say

thinkphp transaction rollback processing and the original PHP transaction rollback instance, thinkphp instance 1. To support transactions within the program, the first connected database and data table must support the transaction MySQL for example:

Source: ReprintMySQL's transactional support is not tied to the MySQL server itself, but is related to the storage engine 1. MyISAM: Transaction not supported, for read-only program lift high performance 2.InnoDB: Acid transaction support, row level

In MYSQL, only INNODB and BDB Data Tables support transaction processing! Other types are not supported! * **: The default MYSQL database engine is MyISAM, which does not support transactions! If you want MYSQL to support transactions, You can

A transaction is a continuous set of database operations, as if it were a single unit of work. In other words, it will never be a complete transaction unless each individual operation within that group is successful. If any operation in the

: This article mainly introduces thinkphp's transaction rollback process and the original PHP transaction rollback instance. if you are interested in the PHP Tutorial, refer to it. 1. to support transactions in the program, the connected database

What is a transaction?In the MySQL environment, a transaction is composed of one or more SQL statements as a separate unit. Each SQL statement in this unit is mutually dependent, and the unit as a whole is inseparable. If a statement in a unit

The method is as follows: 1. Modify the C:appservmysqlmy.ini file, find the Skip-innodb, add the # in front, and save the file.2. In operation input: services.msc, restart the MySQL service.3. In phpMyAdmin, mysql->show engines; (or perform

MySQL's transactional support is not tied to the MySQL server itself, but is related to the storage engine 1. MyISAM: Transaction not supported, for read-only program lift high performance 2.InnoDB: Acid transaction, row level lock, concurrent