oracle查询语句的临时表不需要"AS"
SELECT except_time
FROM
(SELECT MIN(except_time) as except_time,
normal_order_no
FROM KL_PRODPLAN_OPERATION_ORDER
WHERE normal_order_no IN ('HL11070009','HL11080004')
AND except_time IS NOT NULL
GROUP BY normal_order_no
) temp_table2 --这里，不需要用 AS temp_table2