1 SELECT 2 columnTableName = case when a.colorder=1 then d.name else '' end, --表名 3 columnTableDes = case when a.colorder=1 then isnull(f.value,'') else '' end, --表说明 4 columnNo = a.colorder, --字段序号 5 columnName = a.name, --字段名 6 columnId = case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end, --标识 7 coulmnIsKey = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in ( 8 SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then '√' else '' end, -- 主键 9 columnType = b.name, --类型 10 coulmnByte = a.length, --占用字节数 11 columnLength = COLUMNPROPERTY(a.id,a.name,'PRECISION'), --长度 12 columnPoint = isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0), --小数位数 13 coulmnIsnull = case when a.isnullable=1 then '√'else '' end, --允许空 14 columnDefault = isnull(e.text,''), --默认值 15 columnDesc = isnull(g.[value],'') --字段说明 16 FROM 17 syscolumns a 18 left join 19 systypes b 20 on 21 a.xusertype=b.xusertype 22 inner join 23 sysobjects d 24 on 25 a.id=d.id and d.xtype='U' and d.name<>'dtproperties' 26 left join 27 syscomments e 28 on 29 a.cdefault=e.id 30 left join 31 sys.extended_properties g 32 on 33 a.id=G.major_id and a.colid=g.minor_id 34 left join 35 sys.extended_properties f 36 on 37 d.id=f.major_id and f.minor_id=0 38 where 39 d.name='commenTable' --如果只查询指定表,加上此红色where条件，tablename是要查询的表名；去除红色where条件查询说有的表信息 40 order by 41 a.id,a.colorder