将SQL SERVER中所有表的列信息显示出来(转)

要读取数据库中的列的信息，从网上找了很多资料，终于总结出来比较理想的sql语句，执行后返回的列分别是：表名、列名、列类型、列长度、列描述、是否主键，语句如下：

SELECT SysObjects.Name as tb_name, SysColumns.Name as col_name, SysTypes.Name as col_type, SysColumns.Length as col_len, isnull(SysProperties.Value,SysColumns.Name) as col_memo,
case when SysColumns.name in
(select id=a.name
FROM syscolumns a
 inner join sysobjects b on a.id=b.id   and b.xtype='U' and  b.name<>'dtproperties'
 where   exists(SELECT 1 FROM sysobjects where xtype='PK' and name in (
  SELECT name FROM sysindexes WHERE indid in(
   SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid
  )))
and  b.name=SysObjects.Name
)
 then 1 else 0 end as is_key

 FROM SysObjects,SysTypes,SysColumns
LEFT JOIN SysProperties ON (Syscolumns.Id = Sysproperties.Id AND
 Syscolumns.Colid = Sysproperties.Smallid)

 WHERE (Sysobjects.Xtype ='u' OR Sysobjects.Xtype ='v')
AND Sysobjects.Id = Syscolumns.Id AND SysTypes.XType = Syscolumns.XType
AND SysTypes.Name <> 'sysname' AND Sysobjects.Name Like '%' AND SysObjects.Name = '需要显示的表名'--ColdDog补充 at 07.01.31
ORDER By SysObjects.Name, SysColumns.colid