engine myisam

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 explanation 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

One, Storage engine (table type)In general, a database is a collection of data, and a computer database can be a collection of some files on a memory or a collection of some memory data. The MySQL database, SQL Server database, and so on, we usually

MyISAM Storage Engine Features:1. Do not support transactions2. Table-level locking (locks the entire table on update, whose index mechanism is a table-level index, although it can make the implementation cost of locking very small, but also greatly

1. Storage structureMyISAM: Each MyISAM is stored on disk as three files. The first file name begins with the name of the table, and the extension indicates the file type. frm file stores the table definition. The data file has an extension of. MYD (

First, INNODB support affairs, MyISAM not support, this is very important. Transactions are an advanced way of handling, such as in some column additions and deletions, as long as the error can be rolled back to restore, and MyISAM will not

If you are not interested in the long article, you can also look at the results directly. Maybe you are interested in the results. In practical applications, after storage and optimization, the query response speed can be controlled within 1 to 20

If you are not interested in long speeches, you can also see the results directly, perhaps you are interested in the results. In practical applications, storage, optimization can be done in more than 90 million of the query response speed control in

Back up the MySQL data table structure [Root@mysql ~]#/usr/local/mysql/bin/mysqldump-uroot-p ' admin '-D Mysql servers>/backup/mysql-structure-tables-$ ( Date +%f). sql[Root@mysql ~]# egrep-v

How to batch modify MySQL engine in production environmentIn general, this demand is not much, but occasionally, here we recommend the use of SED to the backup of the content of the engine conversion method, of course, do not forget to modify the MY.

Table partitioning is only recently known Oh, I used to do is the table to achieve the billion level of data, I would like to give you a description of the MySQL table partition to create and use it, I hope to be helpful to you classmates. Table

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Table partitioning test usage, mainly from other blog posts and mysql5.1 reference manuals MySQL beta version: mysql5.5.28 MySQL Physical storage file (with MySQL configuration datadir decision storage path) format Introduction Database Engine to

Table partitions are only recently known. I used to split tables to achieve hundreds of millions of data records. Let's introduce how to create and use mysql table partitions, I hope this will help you.Test and use of table partitions. The main

The method for creating mysql Table partitions: bitsCN.com Table partitions are only recently known. Previously, we used to split tables to implement hundreds of millions of data records, next, I will introduce how to create and use mysql Table

One way to operate mysql table sharding in php is generally to consider Table sharding or partition when the data in our database exceeds records. This time I will introduce in detail some table sharding methods. First, we need to think about the

Collected online, organized a bit --table's structure ' ecs_account_log ' CREATE table IF not EXISTS ' ecs_account_log ' (' log_id ' mediumint (8) unsigned not NULL auto_incr Ement COMMENT ' ID number ', ' user_id ' mediumint (8) unsigned not NULL

Detailed Design and Application of mysql table sharding generally, when the data in our database exceeds records, we should consider Table sharding or partition. This time I will introduce in detail some table sharding methods. Currently, all the