Shulou(Shulou.com)06/01 Report--

Today, I would like to talk to you about engine in mysql. Many people may not know much about it. In order to make you understand better, the editor has summarized the following for you. I hope you can get something according to this article.

Mysql engine represents the storage engine, which is a specific subsystem dealing with files in MySQL. The storage engine of MySQL is plug-in, which customizes a file access mechanism according to an abstract interface of the file access layer provided by MySQL AB.

Engine: storage engine

Storage engine is a specific subsystem dealing with files in MySQL. It is also one of the most distinctive features of MySQL.

MySQL's storage engine is plug-in. It customizes a file access mechanism (called storage engine) according to an abstract interface of the file access layer provided by MySQL AB.

Now there are many kinds of storage engines, each of which has different advantages, the most commonly used one is MyISAM,InnoDB,BDB.

By default, MySQL uses the MyISAM engine, which has fast query speed, good index optimization and data compression technology. But it does not support transactions.

InnoDB supports transactions, provides row-level locking, and is widely used.

MySQL also supports its own customized storage engine, and even different tables in a library use different storage engines, which are allowed.

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