查询表结构的SQL语句

如果需要查询表结构，SQL语句能否实现呢？下面就将为您介绍查询表结构的SQL语句的写法，希望对您学习SQL语句能够有所帮助。

– 查询非系统数据库

Select name FROM Master.. SysDatabases where dbid>4  

– 选择water数据库下的所有表

use [water] SELECT name FROM sysobjects WHERE xtype = "U" Or xtype = "S" 

– 选择water数据库下的所有用户表

use [water] SELECT name FROM sysobjects WHERE xtype = "U" AND OBJECTPROPERTY (id, "IsMSShipped") = 0  

– 查询water数据库下的admin表的字段名,长度,类型,字段说明

use [water] SELECT a.[name] as "字段名",a.length "长度",c.[name] "类型",e.value as "字段说明" FROM syscolumns  a   
left   join    systypes    b   on      a.xusertype=b.xusertype   
left     join     systypes     c     on      a.xtype = c.xusertype   
inner   join   sysobjects  d   on      a.id=d.id     and   d.xtype="U"   
left join sys.extended_properties e on a.id = e.major_id and a.colid = e.minor_id and e.name="MS_Description" 
where d.name="admin"