Mysql note

Mysql版本：5.5.6

mysql -u root -p

show databases;

show tables;

show engines;

drop database ecomm1;

use ecomm;

describe table_name;

create the database:

ecomm utf-8

create database  if not exists ecomm1 CHARACTER SET=utf8;

or

create schema if not exists ecomm CHARACTER SET utf8;

create user 'test'@'%' identified by 'test';

drop user 'test'@'%';

create user 'gavin'@'%' identified by '123456';

grant all privileges on *.* to 'gavin'@'%' with grant option;

show grants for 'gavin'@'%';

GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%' WITH GRANT OPTION;