SELECT     SysObjects.Name as TableName,     
                   SysColumns.Name as ColumnsName,     
                   SysTypes.Name as DateType,     
                   SysColumns.Length as DateLength,     
                   SysProperties.Value as Remark     --列描述     
  FROM       SysObjects,     
                    SysTypes,     
                    SysColumns     
  LEFT  JOIN     SysProperties         
                        ON     (Syscolumns.Id     =     Sysproperties.Id     AND     Syscolumns.Colid     =     Sysproperties.Smallid)     
  WHERE             (Sysobjects.Xtype     ='u'     OR     Sysobjects.Xtype     ='v')     
                        AND     Sysobjects.Id     =     Syscolumns.Id     
                        AND     SysTypes.XType     =     Syscolumns.XType     
                        AND     SysTypes.Name     <>     'sysname'   
       AND    SysObjects.name    = 'jobs'
如果需要查询整个数据库的所有表的话，就把最后哪个条件去掉即可。