在Oracle中,可以使用以下函數(shù)來計算時間差:
SELECT DATEDIFF('2022-01-01', '2022-01-10') AS DateDiffInDays FROM dual;
SELECT TIMESTAMPDIFF(SECOND, '2022-01-01 00:00:00', '2022-01-10 00:00:00') AS TimeDiffInSeconds FROM dual;
SELECT TO_DATE('2022-01-10', 'YYYY-MM-DD') - TO_DATE('2022-01-01', 'YYYY-MM-DD') AS DateDiffInDays FROM dual;
這些函數(shù)可以根據(jù)具體情況選擇使用,可以根據(jù)需要計算不同單位的時間差。