Mysql Average on time column?

Question

SELECT avg( duration ) as average FROM login;

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

I execute the query it gives me: 2725.78947368421

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

Answer 1

Try this:

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

Test data:

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

Result:

00:07:09