select RELATION_ID, RELATION_TYPE, RELATION_ID1, RELATION_ID2 from SYS_RELATION where RELATION_ID=#RELATION_ID# where RELATION_TYPE=#RELATION_TYPE# and RELATION_ID1 in (select RELATION_ID1 from SYS_RELATION where RELATION_TYPE=#RELATION_TYPE_USER# and RELATION_ID2=#RELATION_ID2#) where RELATION_TYPE=#RELATION_TYPE# and RELATION_ID1=#RELATION_ID1# insert into SYS_RELATION ( RELATION_TYPE, RELATION_ID1, RELATION_ID2 )values( #RELATION_TYPE#, #RELATION_ID1#, #RELATION_ID2# ) select @@IDENTITY as value insert into SYS_RELATION ( RELATION_ID, RELATION_TYPE, RELATION_ID1, RELATION_ID2 )values( #RELATION_ID#, #RELATION_TYPE#, #RELATION_ID1#, #RELATION_ID2# ) select SYS_RELATION_SEQ.nextval as value from DUAL update SYS_RELATION set RELATION_TYPE=#RELATION_TYPE#, RELATION_ID1=#RELATION_ID1#, RELATION_ID2=#RELATION_ID2# where RELATION_ID=#RELATION_ID# delete from SYS_RELATION where RELATION_ID=#RELATION_ID#