mysql basic statement(1)

1. Open and close mysql: net start | stop
2. Open mysql with the mysql user name: mysql -uroot -p
3. Turn on and off the output log: /T | /t
4. New database: create database [if not exists] database name
5. Show existing databases: show databases
6. Open the database: use database name
7. Create table: create table table name (field name 1 field type [primary key] [auto_increment] [not null] [default], field name 2 field type)

• [primary key]: primary key, keyword
• [auto_increment]: self-increment, can only be used for the primary key
• [not null]: not empty
• [default]: Default value

8. Show storage engines: show engines

• [Default] InnoDB