stored routines за MySQL без пари

I write stored routines for MySQL (procedures and functions), PCRE regular expressions and jQuery plugins for no price. You can contact me at email:
gonaumov@gmail.com
Пиша stored routines за MySQL (procedures и functions), регулярни изрази и jQuery плъгини без пари. За контакти ми пишете на имейла:
gonaumov@gmail.com
Example:

CREATE FUNCTION is_valid_email(email varchar(255))
RETURNS INTEGER
NOT DETERMINISTIC
BEGIN
RETURN email REGEXP '^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,4}$';
END $$

After this you can directly check for valid email inside query.
SELECT IF(is_valid_email('test@test.bg')=1, some code , other code ) ..