How to query data expiration time in mysql php [closed]

How to query data expiration time in mysql php [closed]

In my Database I have products that i saved with the expiration timestamp in the format eg. 2018-22-08. Please how do I select all products that will expire in less than 4 days.

I have tried

SELECT * FROM table WHERE expiration_timestamp = DATE_ADD(CURDATE(), INTERVAL 4 DAY)

This question appears to be off-topic. The users who voted to close gave this specific reason:

what did using that inside phpmyadmin show you or echoing / var_dump'ing the query?

– Funk Forty Niner
Sep 15 '18 at 1:49

Do you have expiration_timestamp values that are earlier than today (that also need to be filtered out)? If so, I might suggest BETWEEN. By the way, expiration_timestamp is a suboptimally named column. Don't you agree that expiration_date makes better sense for you and future developers who may need to interact with your code/db? I get the sense that you haven't toiled very long before posting a question -- this seems very basic. (What does = do?)

– mickmackusa
Sep 15 '18 at 6:20

expiration_timestamp

BETWEEN

expiration_timestamp

expiration_date

=

1 Answer
1

You should use less than operator

SELECT * FROM table WHERE expiration_timestamp < DATE_ADD(CURDATE(), INTERVAL 4 DAY)

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