Wilfried Atgé wrote:

> we are about too choose a database and we are hesitating between
> MySQL and FireBird...

usually the important differing factors are 1) features; and 2) language
bindings. both are already:

* solid & stable (i've found in my experience that mysqld is even more
stable than apache, despite being a multithreaded app; so hats off to
mysql team for that);

* easy to administer/tune;

* available natively on linux and windows;

* free ;-)

* comes with a great community to help you if you have problems;

* ACID-compliant (use bdb & innodb in mysql);

* multigenerational (innodb in mysql);

etc.

--
dave