oracle or语句的坑

SELECT SUM(tjo.pay_amount) FROM tb_jf_order tjo,tb_jf_gateway_trade_log tjg
WHERE  tjo.order_id = tjg.biz_id AND 
tjo.user_id = tjg.user_id    AND 
(tjg.trade_type='p' OR tjg.trade_type='t') AND 
tjo.user_id='34322'AND 
tjo.order_state='88' AND 
tjo.order_type NOT IN ('0024','0022','0026') AND 
tjo.order_date = to_char(SYSDATE,'yyyyMMdd');

1、上述sql中如果的两个or语句一定要赢括号括起来。