[轉]MS SQL 显示表结构

=====================MS SQL 2000============================

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 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='TWebInfo' --如果只查询指定表,加上此条件
order by a.id,a.colorder

=====================MS SQL 2005============================ 

SELECT  (case when a.colorder=1 then d.name else '' end)表名,
        a.colorder 字段序号,
        a.name 字段名,
        (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 标识,
        (case when (SELECT count(*)
        FROM sysobjects
        WHERE (name in
                  (SELECT name
                  FROM sysindexes
                  WHERE (id = a.id) AND (indid in
                            (SELECT indid
                            FROM sysindexkeys
                          WHERE (id = a.id) AND (colid in
                                    (SELECT colid
                                    FROM syscolumns
                                    WHERE (id = a.id) AND (name = a.name))))))) AND
                (xtype = 'PK'))>0 then '√' else '' end) 主键,
        b.name 类型,
        a.length 占用字节数,
        COLUMNPROPERTY(a.id,a.name,'PRECISION') as 长度,
        isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小数位数,
        (case when a.isnullable=1 then '√'else '' end) 允许空,
        isnull(e.text,'') 默认值,
        isnull(g.[value],'') AS 字段说明
FROM    syscolumns    a left join systypes b
on    a.xtype=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 sys.extended_properties g --2005相应的修改
on a.id=g.major_id AND a.colid = g.major_id --2005相应的修改
---where d.name='要查询的表'
order by a.id,a.colorder