title: Most compatible way to listen for database changes?
body: <p>I have a process that reads raw data and writes this to a database every few seconds.</p>
  
  <p>What is the best way to tell if the database has been written to? I know that Oracle and MS-SQL can use triggers or something to communicate with other services, but I was hoping there would be a technique that would work with more types of SQL databases (SQL lite, MySQL, PostGRES).</p>