Add a way to update database tables

[RomainOdeval]

You can't update tables into database when you have already installed a module.
Must find a simple way to update it (depends on module version ?)

[WebCrew]

They had a similar issue with the Magento CMS - maybe their solution also will help you to get an idea about our issue here?

https://magento.stackexchange.com/questions/40799/how-to-update-database-tables-of-already-installed-custom-module