Hello pryrt,

I am not using MySQL any more, rather for fun so I do not really know the OUT parameter to be honest. I saw that you do not have a solid answer to your problem so maybe this similar question Calling MySQL stored procedures with in and out parameters, can guide you more to the solution.

Unfortunately I do not have the time to experiment further to try to assist but maybe later on the day I will find some time. Never the less if you find solution to your problem update us so more people in future can benefit.

Update: From the MySQL forums HOW TO RETRIEVE AN "OUT" PARAMETER OF MYSQL STORED PROCEDURE IN PERL, the show one example and the user says is working, worth to give it a try.

Hope this helps, BR.