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'