How to Store MySQL Trigger exception / failure info into Table or in Variables

Question

I am stuck at somewhere and I need some help from you.

Scenario

I have two databases i.e., test_db1 and test_db2 and have users

Answer 1

Check out the syntax for DECLARE HANDLER

http://dev.mysql.com/doc/refman/5.1/en/declare-handler.html

Also, if you're trying to debug a SP, this might be helpful for you:

http://www.bluegecko.net/mysql/debugging-stored-procedures/

Upon trigger you can use something like below :

    CREATE TRIGGER `my_table_AINS` AFTER INSERT ON `my_table` FOR EACH ROW
BEGIN
    DECLARE EXIT HANDLER FOR SQLEXCEPTION
        RESIGNAL;
    DECLARE EXIT HANDLER FOR SQLWARNING
        RESIGNAL;
    DECLARE EXIT HANDLER FOR NOT FOUND
        RESIGNAL; 
    -- Do the work of the trigger.
END

Hope this may help you.