SQL 语句查看表结构

exec sp_help ‘表名’

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怎样在sql sever中用sql命令查看表结构？

可以使用内置的存储过程sp_MShelpcolumns。 
     如查询表B_RWZL的结构： 
     sp_MShelpcolumns "dbo.B_RWZL"

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（1）
SELECT
表名=case when a.colorder=1 then d.name else "" end,
表说明=case when a.colorder=1 then isnull(f.value,"") else "" end,
字段序号=a.colorder,
字段名=a.name,
标识=case when COLUMNPROPERTY( a.id,a.name,"IsIdentity")=1 then "√"else "" end,
主键=case when exists(SELECT 1 FROM sysobjects where xtype="PK" and parent_obj=a.id and name in (
SELECT name FROM sysindexes WHERE indid in(
SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid
))) then "√" else "" end,
类型=b.name,
占用字节数=a.length,
长度=COLUMNPROPERTY(a.id,a.name,"PRECISION"),
小数位数=isnull(COLUMNPROPERTY(a.id,a.name,"Scale"),0),
允许空=case when a.isnullable=1 then "√"else "" end,
默认值=isnull(e.text,""),
字段说明=isnull(g.[value],"")
FROM syscolumns a
left join systypes b on a.xusertype=b.xusertype
inner join sysobjects d on a.id=d.id and d.xtype="U" and d.name<>"dtproperties"
left join syscomments e on a.cdefault=e.id
left join sysproperties g on a.id=g.id and a.colid=g.smallid
left join sysproperties f on d.id=f.id and f.smallid=0
--where d.name="要查询的表" --如果只查询指定表,加上此条件
order by a.id,a.colorder

（2）

SQL2000系统表的应用
--1：获取当前数据库中的所有用户表

select Name from sysobjects where xtype="u" and status>=0

--2：获取某一个表的所有字段

select name from syscolumns where id=object_id("表名")

--3：查看与某一个表相关的视图、存储过程、函数

select a.* from sysobjects a, syscomments b where a.id = b.id and b.text like "%表名%"

--4：查看当前数据库中所有存储过程

select name as 存储过程名称 from sysobjects where xtype="P"

--5：查询用户创建的所有数据库

select * from master..sysdatabases D where sid not in(select sid from master..syslogins where name="sa")

或者

select dbid, name AS DB_NAME from master..sysdatabases where sid <> 0x01

--6：查询某一个表的字段和数据类型

select column_name,data_type from information_schema.columns
where table_name = "表名"

--7:取得表字段的描述
select name,
(select value from sysproperties where id = syscolumns.id and smallid=syscolumns.colid) as 描述
from syscolumns where id=object_id("表名")