[Jean Larrivière]

I've a problem,
i just to connect me from a computer(B) to my data base stoked in an other computer(A) in the same local network. But it still impossible...
I know that i can have an acces to the wamp server on (A) from (B) but no-one access to the data base.

WAMP server contains 2 servers - web-server and database-server. Access to each of them is configured separately.
You need to configure your database server (MySQL) so that it will allow access to it from other computers, not only from the computer on which it's running. For that I think you need to click on WAMP server's icon in system tray, choose MySQL and open its configuration file and change settings there. I might be wrong. May be you'll need to use phpMyAdmin instead. But in general you'll need to change settings of database server, only after that you'll get access to your database server from another computers. Hope it helps.