answered here: http://piwigo.org/forum/viewtopic.php?id=19075
The subject says it.
I installed Wordpress and then later installed Piwigo Gallery in the same SQL Database.
Is there a way to backup just the gallery?
I can backup the whole database from my hosting account but will be everything in the database.
I was looking for a plugin for Piwigo.
Any help would be appreciated.