mysql create table syntax example

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MySQL user, library, table operation syntax about the user's 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

MySQL command modify table structure ALTER TABLE syntax

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_

Create and delete indexes in the MySQL database

The following articles mainly describe the creation and deletion of MySQL databases, as well as the detailed parsing of indexes and changing actual table statements. If you are also popular with MySQL databases, you can click the following article

MySQL basic syntax

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,

MySQL Lock table detailed

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

MySQL Common instructions, java,php programmers, database engineers must. Programmers Xiaoice Common Data collation

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

How to create a Mysql table partition _mysql

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

MySQL Fifth study notes the operation of the data table

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 study Note 5 related data table operations

When creating a table, MySQL creates a. frm file to save the table and column definitions. Indexes are stored in a file with the. MYI (MYindex) Extension and data is stored in a file with the. MYD (MYData) extension. 1. Use the SHOW/DESCRIBE

Installing MySQL in Linux and solutions to some common problems _ MySQL-mysql tutorial

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

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