Wordpress Activate and Deactivate Functions

wp-plugins.php

<?php
  //Add Activate Button
  function my_plugin_activate(){
      //db create, create options, etc
      error_log('My plugin activated');
  }
  register_activation_hook(__FILE__, 'my_plugin_activate');

  //Add Deactivate Button
  function my_plugin_deactivate(){
      //db create, create options, etc
      error_log('My plugin deactivated');
  }
  register_deactivation_hook(__FILE__, 'my_plugin_deactivate');
?>