myisam vs innodb performance

MyISAM is the default database engine for MySQL (prior to version 5.5), which was improved by the early ISAM (Indexed sequential access method: Indexed sequential access methods). Although performance is excellent, there is one drawback: Transaction processing (transaction) is not supported. However, over the years, MySQL has also introduced InnoDB (another datab

The difference between engine = innodb and engine = myisam in mysql is that when MySQL Administrator is used to create a database, the table is of the InnoDB type by default. Later, when using Access2MySQL to export data, I found that only tables of the MyISAM type can be imported. I checked the differences between the

The MySQL storage engine InnoDB, MyISAM, and other storage engines introduce the constant updates and changes of MySQL. In fact, the most important thing is the change and upgrade of the storage engine, which also derive many different storage engines. When creating a MySQl database (or a schema), we will also ignore the storage engine selection, because the default storage engine we normally use directly.

InnoDB with the Myisam The six major differences MyISAM InnoDB The difference in composition: Each myisam is stored as three files on disk. The first file name begins with the name of the table, and the extension indicates the file

the new version of the default engine type, which is transaction-safe . It has the same characteristics as the BDB type, and they also support foreign keys . The InnoDB table is fast and has a richer feature than BDB, so it is recommended if a transaction-safe storage engine is required. If your data performs a large number of inserts or UPDATE, for performance reasons, you should use the

Mysql5.5+ 's version of the default engine is InnoDB, the earlier MySQL version of the default storage engine is MyISAMInnoDB1. Transactional operations2. Foreign key operation3. Row-level lock, which is when there is a where condition. When there is no where, it is also a table lock when searching in that range. Provides the same consistent, non-lock reads as Oracle, which increases the number of concurrent read users and improves

When you first build a database with MySQL administrator, the table defaults to the InnoDB type, and you don't care. Later, when using Access2mysql to guide the data found can only lead to myisam type of table, do not know what the difference between the two types, went to check. The MyISAM type does not support advanced processing, such as transaction processing

characteristics as the BDB type, and they also support foreign keys. The InnoDB table is fast and has a richer feature than BDB, so it is recommended if a transaction-safe storage engine is required. If your data performs a large number of inserts or update, for performance reasons, you should use the InnoDB table. For INNOD