Hi

I need to do a bulk search and replace of a string of text which exists in hundreds of product descriptions.
This is what I plan on using in phpmyadmin. Could someone tell me if I have this formatted correctly?

update zen_products_description set products_description = replace(products_description,'link-to-replace.html','change-to-this-link.html');

Also if I drop the zen_ prefix can I run this directly from admin?