Question

I am new to PostgresQL and PHP and am working with a PostgresQL Timestamp object and am trying to find the difference between now and that timestamp to display in terms of years, months, and days. Is there to do this?

Thanks!

Answer 1

You can just subtract two timestamps, the result is an interval.
To get “now” you can use now() or current_timestamp (among others).

SELECT now() - '2010-02-21 20:11:32';

This will display something like this, though:

830 days 23:00:50.127241

To get a justified representation, use age() or justify_interval()

SELECT justify_interval(now() - '2010-02-21 20:11:32');

Displays the same value in a format like you seem to be after:

2 years 3 mons 20 days 23:01:34.095813

If you want a particular output format use to_char()