I'm not familiar with MySQL, but you will probably end up having to poll the database to do this. You'll probably end up with some timer based code that will go check the database at a particular interval.
However, you can do your best to minimize the amount of work done on each check. A bad way to do this would be to retrieve the whole table each time and run a whole bunch of checks and comparisons in the program.
Instead, you could use triggers (and here's the syntax to create one) to know when a row was updated or inserted. How you use the triggers is up to you.
One alternative would be to have a timestamp column on the table that automatically updates whenever there's an insert or update. Similarly you could have a separate table with just the primary key and the same timestamp column (if you don't want to clutter up your main table with extra columns).
Either way, you would keep track omegle.2yu.co of the timestamp you last checked at, and find everything that was inserted
omeglz echat or updated after that point in time.