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,     字段说明   = isnull(G.[value],‘‘),     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,‘‘) 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=‘OrderInfo‘    --如果只查询指定表,加上此条件 Order By     A.id,A.colorder

    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 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=‘shipped_list‘    --如果只查询指定表,加上此条件,表名      order by     a.id,a.colorder            --======================================================================================      select a.name 列名, c.name 数据类型,a.max_length 长度,a.is_nullable 是否为空        from sys.columns a, sys.tables b, sys.types c       where a.object_id=b.object_id          and a.system_type_id=c.system_type_id          and b.name=‘Inv_master‘--如果只查询指定表,加上此条件,表名          order by a.column_id