Mysql 平均时间列?

2021-12-23 00:00:00 time average mysql

SELECT avg( duration ) as average FROM login;

SELECT avg( duration ) as average FROM login;

持续时间的数据类型是时间"，因此我的值是:00:00:14、00:20:23等

The datatype for duration is "time", thus my value is like: 00:00:14, 00:20:23 etc

我执行它给我的查询:2725.78947368421

I execute the query it gives me: 2725.78947368421

那是什么?我要时间格式的，mysql可以按时间做平均吗??

What is that? I want in time format, can mysql do the average on time??

推荐答案

试试这个:

SELECT SEC_TO_TIME(AVG(TIME_TO_SEC(`login`))) FROM Table1;

测试数据:

CREATE TABLE `login` (duration TIME NOT NULL); INSERT INTO `login` (duration) VALUES ('00:00:20'), ('00:01:10'), ('00:20:15'), ('00:06:50');

结果:

00:07:09

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