innodb

Multiple versions of InnoDB and InnoDB InnoDB is a multi-version storage engine. To support some features of transactions, such as concurrency and rollback, InnoDB maintains the old version of the modified row. This information is stored in a

After G, the solution is as follows: /var/lib/mysql directory, delete ibdata1, Ib_logfile1, IB_LOGFILE0, and then restart MySQL to rebuild the files above: Mysqladmin-uroot-p shutdown sudo mysqld_safe & Get! The following are other articles on the

This article mainly organized the MySQL two commonly used storage engine MYISAM,INNODB six major common differences: The difference in composition MyISAM Each myisam is stored on disk as three files. The first file begins with the name of the

In the database optimization, we see some of the tables are designed to use text or BLOB fields, if the single table storage space reached nearly hundred g or dozens of G, this situation again to change and optimization is very difficultFirst,

In the database optimization, we see some of the tables are designed to use text or BLOB fields, if the single table storage space reached nearly hundred g or dozens of G, this situation again to change and optimization is very difficultFirst,

databases and Instances  Database: A collection instance of a physical operating system file or other form of file type (instance): The MySQL database consists of a background thread and a shared memory area. Typically, the two are a

Compared to the MyISAM storage engine.InnoDB supports transactions, row locks.MyISAM and InnoDB explanationInnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the

MyISAM and InnoDB explanationInnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the application. The basic difference is that the MyISAM type does not support

MyISAM and InnoDB explanationInnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the application. The basic difference is that the MyISAM type does not support

InnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the application. The basic difference is that the MyISAM type does not support advanced processing such as

MyISAM and InnoDB explanationInnoDB and MyISAM are the two most common table types used by many people when using MySQL, both of which have pros and cons, depending on the application. The basic difference is that the MyISAM type does not support

In this article, I will discuss a related topic: ndash; InnoDB Transaction Isolation Mode, their relationships with MVCC (Multi-version concurrency control), and how they affect In this article, I will discuss a related topic: ndash; InnoDB

Recently, the mysqlinnodb storage engine has been optimized to convert the shared tablespace to an independent tablespace. I didn't think so much at the beginning, so I had to promote it in a short time, So I optimized it, Recently, the mysql innodb

In the process of using MySQL, there are some questions about the concepts of MyISAM and InnoDB, and the difference between the two engines has always been a question in my mind. To solve this puzzle, we searched the network and found the following

MyISAM and memory using table-level locks (table-level locking) BdB with page locks (page-leve locking) or table-level locks, default to page locks InnoDB supports row-level locks (row-level locking) and table-level locks, which default to

InnoDB and MyISAM are the two most commonly used table types used by many people when using MySQL, each with its own pros and cons, depending on the specific application. The basic difference is that the MyISAM type does not support advanced

Original link http://www.cnblogs.com/chenpingzhao/p/5107480.htmlFirst, IntroductionConsider this scenario : If the redo log can grow infinitely and the buffer pool is large enough, it is not necessary to flush the new version of the pages in the

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

Summary:This article describes MySQL's InnoDB index-related knowledge, from a variety of tree-to-index principles to the details of storage.InnoDB is the default storage engine for MySQL (Mysql5.5.5 before MyISAM, documentation). In the purpose of

MySQL Engine Features · InnoDB Crash Recovery processIn the previous two monthly report, we introduced the knowledge of InnoDB redo log and undo log in detail, and this article will describe the main process of InnoDB in the case of crash