MySQL常用指令,java,php程序员,数据库工程师必备。程序员小冰常用资料整理MySQL common commands (for reference)The most common display commands are:1. Display the list of databases.show databases;2. Display the data table in the library:Use MySQL;Show tables;3, display the
The common MySQL table engine has InnoDB and MyISAM, the main difference is that InnoDB is suitable for frequent write database operations, MyISAM suitable for reading the database a little bit more, how to change the table engine InnoDB to MyISAM?
MySQL table sharding Methods: MySQL
I. Let me explain why Table sharding is required.
When a piece of data reaches several millions, it takes more time for you to query the data at a time. If there is a joint query, I think it may die there. The
In order to better optimize MySQL in high concurrency, it is necessary to understand the locking table mechanism when MySQL query is updated.I. OverviewMySQL has three levels of Lock: page level, table level, row level.MyISAM and MemoryStorageThe
Set Change root passwordNote: How to change the root password, about the root user is the MySQL Super administrator user, it is similar to the root user inside the Linux operating system, to distinguish between the root of MySQL and the system root
1. Full backup and incremental backup 1.1 full-scale backupFull-volume data is all the data in the database, and a full backup is the backup of all the data in the database.Back Up all libraries:mysqldump -uroot -p123456 -S /data/3306/mysql.sock -F -
1. download MySql
1. download MySql
Open http://www.mysql.com/downloads/mysql/#downloads download in browser
My downloaded version is Red Hat 5 version of http://www.mysql.com/downloads/mirror.php? Id = 407552
Upload the file to the server, or
Install MySQL1. Download the MySQL Installation FileThe following two files are required to install MYSQL:MySQL-server-5.1.7-0.i386.rpm
To download the above two RPM files, locate the "server" and "client programs" items and find the items
MySQL creates a table and creates a . frm file to save the table and column definitions. The index is stored in one . MYI (Myindex) and the data is stored in the . MYD (MYData) file extension. First, using Show/describe statement to display the data
In Linux: the default data file storage directory of MySQL is/var/lib/mysql. I want to do two things today: Change the Database Name (three methods are tested), and change the directory location of the MySQL database. Database rename: 1. rename
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