1. mysql 使用

登录

$ mysql -uroot  -p

列出所有数据库

show databases;

创建数据库

CREATE DATABASE abccs;

切换数据库

use databasename;

查看当前数据库

SELECT database();

列出所有表

show tables;

查看表结构

desc tablename;

创建用户

CREATE USER 'username'@'host' IDENTIFIED BY 'password';
CREATE USER 'username'@'%' IDENTIFIED BY 'password';

给用户授权

GRANT privileges ON databasename.tablename TO 'username'@'host'
GRANT ALL ON *.* TO 'bell'@'%';

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