经典T-SQL语句搜藏

全部转自新闻组精华区，同时感谢iceriver(林)

返回数据库内所有表的字段详细说明的SQL语句 （可以直接粘贴使用）
SELECT
 (case when a.colorder=1 then d.name else '' end) N'表名',
 a.colorder N'字段序号',
 a.name N'字段名',
 (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else ''
end) N'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) N'主键',
 b.name N'类型',
 a.length N'占用字节数',
 COLUMNPROPERTY(a.id,a.name,'PRECISION') as N'长度',
 isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as N'小数位数',
 (case when a.isnullable=1 then '√'else '' end) N'允许空',
 isnull(e.text,'') N'默认值',
 isnull(g.[value],'') AS N'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 sysproperties g
 on a.id=g.id AND a.colid = g.smallid
order by object_name(a.id),a.colorder