delete records older than 24 hours in a table in WordPress db

Without knowing that structure of that table, it would be impossible.

Here is a good example of how to delete records prior to a specific timestamp, but you will need a field in the table that will give you a timestamp to work from.

https://stackoverflow.com/questions/10197633/mysql-query-to-delete-rows-whose-timestamp-is-older-than-current-timestamp

yeah my table is simple it got only an id email and time-stamp.The thing is records should be removed as i mentioned!. Is there any way i can do this inside WordPress without setting up an event in mysql?