How to update a table using trigger every 30 days?

Question

Hi I want to create a MYSQL trigger that updates my users's table. My Scenario is this : I have users table in which there is a field called Balance. Each Reseller assgins balance to its users to: Yes or No. Now if the reseller sets the balance of users to Yes, then i store the current date and time into database into a field called Reset_date. Now i want to count from today 30 days and when 30 days are completed i want to update users's balance to No So from the day then balance has been set to yes, after 30 days balance should be reverted to No.

I Guess i should also be using CRON JOB for this, as i have multiple reseller and multiple users. So the reset data is different for each of them.

I mean for user1 the reset date is today and for another it maybe different so might be cron job be needed here. So please guide me on how to use this cron job as well.

Below is my Table Structure for Users and Resellers:

Reseller

Users

Answer 1

Your assumption about using cron job is correct. You can run a corn job every midnight using the following format:

0 0 0 1/1 * ? *

In your job, you can check for records with dates which are 30 days old and is assigned YES. Then you can update this records and assign status to NO

Answer 2

Trigger a cron job.

• You should write a function in controller to do what you require(change yes to no if date has exceeded 30 days.
• You should make sure that, you controller funtion doesn't have any session related to it.

I have added following images , refer them

I have added a cron which runs once in a day. and in your server, it looks like this.