Question

I want to know how much time has elapsed in seconds from a table field upload_date and now, when the query is executed. After reading some functions of MySQL I tried but wasn’t so lucky.

Is there a way to return the value in hours if it was less than 24 hours, and in days, if it was 100 days or less? Otherwise I will have to code that in PHP.

The date is in CURRENT TIME STAMP format, just to clear that up.

I tried this:

SELECT DATE_SUB(NOW(), upload_date) FROM is_meeting_files

I also tried this, but it gave a difference of 0 seconds:

SELECT DATEDIFF(CURDATE(), upload_date) AS intval FROM is_meeting_files LIMIT 0,5;

Answer 1

You can subtract the unix timestamp values from one another:

SELECT unix_timestamp(NOW()) - unix_timestamp(upload_date) from is_meeting_files;