INSERT INTO ClassOwnMate ( classesId, materialId ,areaid ) Values ( #{classesId}, #{materialId} ,areaid ) UPDATE ClassOwnMate SET classesId = #{classesId}, materialId = #{materialId} , areaid = #{areaid} where classesId=#{classesId} and materialId=#{materialId} and areaid = #{areaid} SELECT classesId , materialId , areaid FROM ClassOwnMate WHERE classesId=#{classesId} and materialId=#{materialId} and areaid = #{areaid} SELECT nextval('seq_classOwnMateId') ; INSERT INTO ClassOwnMate ( classesId, materialId , areaid ) Values ( #{item.classesId}, #{item.materialId} , #{item.areaid} )