SQL Server查詢所有的表名、字段名、注釋

SELECT
表名=case   when   a.colorder=1   then   d.name   else   ''   end,
表說明=case   when   a.colorder=1   then   isnull(f.value,'')   else   ''   end,
字段序號=a.colorder,
字段名=a.name,
標識=case   when   COLUMNPROPERTY(   a.id,a.name,'IsIdentity')=1   then   '√'else   ''   end,
主鍵=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,
類型=b.name,
占用字節數=a.length,
長度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
小數位數=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
允許空=case   when   a.isnullable=1   then   '√'else   ''   end,
默認值=isnull(e.text,''),
字段說明=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   sys.extended_properties   g   on   a.id=g.major_id   and   a.colid=g.minor_id
left   join   sys.extended_properties   f   on   d.id=f.major_id   and   f.minor_id=0
--where   d.name='orders'         --如果只查詢指定表,加上此條件
order   by   a.id,a.colorder