Let’s say I have two tables as shown: user id plan course_limit username 10

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Editorial Team

Asked: May 21, 20262026-05-21T00:09:36+00:00 2026-05-21T00:09:36+00:00

Let’s say I have two tables as shown:

user

id plan course_limit username

10 0 ahmad

note: plan is enum field containing ”,’a’,’b’,’c’.

course

id user_id username

1 10 ahmad

Now I want when a user insert into course as shown I want the course_limit to increment by 1 for that user so that I can apply a limit.

now i don,t want to use triggers as my hosting does not support so i want to use php and do this. plz help me.

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Editorial Team · Answer 1 · 2026-05-21T00:09:37+00:00

Editorial Team

You could run an UPDATE statement after you run the INSERT.

(If you are using MySQL) Ex:

UPDATE user SET course_limit=course_limit+1 WHERE username = '$username'

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