在工作中需要计算两个时间的差值, 结束时间 - 开始时间, 又不想在 JS 里写 function, 也不想在 Java 里去计算, 干脆就在 Oracle 数据库做了一个函数来计算两个时间的差值. 格式为 XX 天 XX 时 XX 分 XX 秒;
上代码:
- CREATE OR REPLACE FUNCTION F_GET_DIFF_TIME(START_TIME IN DATE,
- END_TIME IN DATE)
- RETURN VARCHAR2 IS
- DIFF_TIME VARCHAR2(50);
- BEGIN
- SELECT TDAY || '天' || THOUR || '时' || TMINUTE || '分' || ROUND((TT - TMINUTE) * 60) || '秒' INTO DIFF_TIME
- FROM (SELECT TDAY,
- THOUR,
- TRUNC((TT - THOUR) * 60) TMINUTE,
- (TT - THOUR) * 60 TT
- FROM (SELECT TDAY,
- TRUNC((TT - TDAY) * 24) THOUR,
- (TT - TDAY) * 24 TT
- FROM (SELECT TO_NUMBER(END_TIME - START_TIME) AS TT,
- TRUNC(TO_NUMBER(END_TIME - START_TIME)) AS TDAY
- FROM (SELECT START_TIME, END_TIME FROM dual))));
- RETURN DIFF_TIME;
- END;
输出的格式为下图:
来源: http://www.linuxidc.com/Linux/2019-11/161379.htm