oracle递归查询父 select * from KM_PROCESS p start with p.WB_ID = ' 20130423055636 ' connect by prior p.PARENT_WBS_CODE =p.WB_ID oracle递归查询子 select * from KM_PROCESS p start with p.WB_ID = ' 20130423055636 ' connect by prior p.WB_ID =p.PARENT_WBS_CODE