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 aleft join systypes b on a.xusertype=b.xusertypeinner join sysobjects d on a.id=d.idand d.xtype='U' andd.name<>'dtproperties'left join syscomments e on a.cdefault=e.idleft join sys.extended_properties g on a.id=g.major_id and a.colid=g.minor_idleft join sys.extended_properties f on d.id=f.major_id and f.minor_id=0--where d.name='orders' --如果只查询指定表,加上此条件order by a.id,a.colorder
