两个条件怎么优先选择其中一个
select sum(case type when 'O' then -1*b.qty else b.qty end)
from inventory_trans b
where b.part_id = INVENTORY_TRANS.PART_ID and
b.transaction_id <= INVENTORY_TRANS.TRANSACTION_ID and
b.TRANSACTION_DATE <= INVENTORY_TRANS.TRANSACTION_DATE and
b.WAREHOUSE_ID = :ls_warehouse
这样TRANSACTION_DATE和TRANSACTION_ID这两个条件,怎样先选择DATE这个条件再选择ID这个条件