mysql> create database name;
mysql> drop databasename;
mysql> create table customers( #创建表
cust_id int not null auto_increment, #自动递增
cust_name char(50) not null,
cust_address char(50) null,
cust_city char(50) null,
cust_state char(5) null,
cust_zip char(10) null,
cust_country char(50) null,
cust_contact char(50) null,
cust_email char(255) null,
primary key (cust_id))engine= InnoDB; #事务处理引擎
mysql> drop table customers;
#删除表
mysql> alter table vendors
add vend_phone char(20); #增加一列
mysql> alter table vendors
drop column vend_phone ; #删除一列
mysql> alter table products add primary key (prod_id); #指定主键值
mysql> alter table products drop primary key; #删除主键值
mysql> alter table products auto_increment=10001; #设定主键值的初始值
mysql> alter table products alter column vend_id set default '10'; #设定指定列的初始值
mysql> alter table products modify column vend_id int not null; #更改列的属性值
mysql> alter table products modify column prod_id int not null auto_increment; #主键值自动递增
mysql> alter table products engine='MyISAM/InnoDB/MEMORY'; #更事务引擎