[GRASSLIST:9377] Some question about db...

[Luca Casagrande]

Hi guys...
I am moving the first step on db operation: following the info on this page, 
http://grass.itc.it/grass61/manuals/html61_user/sql.html , I notice that the 
command GROUP BY is not supported by DBF driver; I need to use DBMS to have 
full support for SQL.
Running db.drivers I got only DBF and OGR as output... how can I enable DBMS ?

Thx
Luca