title: Trigger does not work
body: <p>Good day all, 
  I am trying to keep some historical test data if a certain field changes after every test. I have the data in a table called gypsum and wish to track changes in a table called history_gypsum.
  The trigger I have created shows errors which I do not understand,your help will be appreciated.Many thanks.G Styles</p>
  
  <pre><code>DELIMITER $$
  
  CREATE TRIGGER `pattesti_testing`.`history_gypsum` 
   BEFORE UPDATE 
  ON `pattesti_testing`.`gypsum`
  FOR EACH ROW
  BEGIN
  IF OLD.leakage != NEW.leakage
      THEN
              INSERT INTO history_gypsum
                  (
          id,
          register_number,
          equipment_description,
          make,
          class,
          location,
          continuity_value,
          insulation_value,
          leakage,
          polarity,
          test_frequency,
          date_of_test,
          comments,
          passed,
          tester_initials,
          next_test,
          current,
                  )
                  VALUES 
                  (
          NEW.id,
          NEW.register_number,
          NEW.equipment_description,
          NEW.make,
          NEW.class,
          NEW.location,
          NEW.continuity_value,
          NEW.insulation_value,
          NEW.leakage,
          NEW.polarity,
          NEW.test_frequency,
          NEW.date_of_test,
          NEW.comments,
          NEW.passed,
          NEW.tester_initials,
          NEW.next_test,
          NEW.current,
                   );
      END IF ;
  END;
   $$
  DELIMITER ;
  
  ERRORS
  
  Query : CREATE TRIGGER `pattesti_testing`.`history_gypsum`  BEFORE        UPDATE      ON `pattesti_testing`.`gypsum`     FOR EACH ROW BEGIN    ...
  
  Error Code : 1064
  You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')
                  VALUES 
                  (
          NEW.id,
          NEW.register_n' at line 26
  </code></pre>
  
  <p>Execution Time : 00:00:00:000
  Transfer Time  : 00:00:00:000</p>
  
  <h2>Total Time     : 00:00:00:000</h2>