How to set language(for store,products etc)

Hi all! Can any body help, where can i find language configuration for Store. I have release 4.4.8. As i see in db oxconfig we have sDefaultLang varname is it?. But where can i find in db aviable languages for store(products have other description in other languages, etc). And how can i change it.

Also if i need to export products to oxid store, in multiple languages how can i see from config aviable langueges to know what to export.

In core settings->settings there are nothing about languges. for categories, products etc…

Language settings are made in the admin-backend

Ok, but how can i read languages settings from db?. I have values in blob fields…

afaik the languages have IDs which can be seen in backend, but can not be changed.

so in my Shop german is default (with ID 0) and english is deactivated (with ID 1)