mysql drop table syntax

MySQL user, library, table operation syntax about the user's syntax查看当前系统里的用户:select user,host from mysql.user;查看当前登陆的用户select user();创建用户语法：create user ‘用户‘@‘主机‘ identified by ‘密码‘;示例：create user ‘anuo‘@‘localhost‘ identified by ‘123‘创建用户并授权grant

ALTER TABLE Syntax ALTER [IGNORE] TABLE tbl_name alter_spec [, Alter_spec ...] Alter_specification:ADD [COLUMN] create_definition [i | After column_name]or ADD [COLUMN] (create_definition, create_definition,...)or ADD INDEX [index_name] (Index_col_

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

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

3.3.5 Create or delete the database directly in the database directory, just create a directory with the same name as the database under the MySQL data directory, and delete the database by deleting the directory. So, you can do this directly,

Detailed description of Mysql commands (recommended) and mysql commands This section describes commonly used MySQL commands, including connecting to the database, changing the password, managing users, operating databases, operating data tables, and

MySQL DROP table,create index,drop INDEXDROP [temporary] TABLE [IF EXISTS] tbl_name [, Tbl_name,...][RESTRICT | CASCADE]DROP table removes one or more tables. All data and table definitions have been removed, so be sure to use this command carefully!

Install mysql in centos5.8 1. Install mysql yum Source Download the rpminstallation package of mysql's latest yumsource from http://dev.mysql.com/downloads/repo/yum/   wget http://repo.mysql.com//mysql57-community-release-el6-9.noarch.rpm Use yum

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

Mysql commands are often used by everyone, but few of you can sort them out. there are not many projects recently. you can take a moment to summarize the mysql database commands. if you need them, refer to section 1. connect to Mysql. Format: