Hi Claudio,
a quick search shows that Magento has a full-featured web service API.
http://www.magentocommerce.com/support/magento_core_apiRather than have to reverse engineer their database, I'd suggest you use their API.
Hank
>Hi..
>
>I'm running under a task to integrate data exchange between our POS application and Magento e-commerce...
>
>
http://www.magentocommerce.com/>
>Does anyone here had some similar experience.. That mind to share here some SQLs code to import/export products, clients and orders programmactically via ODBC
>
>Any help... Plenty welcome
>
>TIA
>
>Claudio