SQL语句创建表和数据库

创建数据库的SQL语句：

 1 use practice
 2 go
 3 if exists (select * from sysobjects where name=‘practice‘)
 4 drop table Store_Information
 5 create table Store_Information
 6 (
 7   storeID int identity(1,1) primary key,--列属性"identity(起始值,递增量)"
 8   store_Name varchar not null,
 9   store_Money decimal null,
10   store_Date date not null,
11 )

删除数据库，SQL Server将数据库的清单存放在master系统数据库的sysdatabases表中，只需要查看该表是否存在于该数据库中就可以

了，语句如下：

1 use master -- 设置当前数据库为master,以便访问sysdatabases表
2 go
3 if exists (select * from sysdatabases where name=‘practice‘)
4 drop database practice

创建表的SQL语句如下：

 1 use practice
 2 go
 3 if exists (select * from sysobjects where name=‘practice‘)
 4 drop table Store_Information
 5 create table Store_Information
 6 (
 7   storeID int identity(1,1) primary key,--列属性"identity(起始值,递增量)"
 8   store_Name varchar not null,
 9   store_Money decimal null,
10   store_Date date not null,
11 )