Milan,

M> Select NAME from RDBMS
M> where Licence_Cost = 0
M> and Licence_Restrictions = 0
M> and Administration < 1
M> and RUNS_ON in ('Win32', 'Linux', 'MacOSX')
M> and is Reliable;

FlameRobin gives:

Engine Code : 335544569
Engine Message :
Dynamic SQL Error
SQL error code = -104
Token unknown - line 6, char 7
is

This one works. ;-)

select NAME
from RDBMS
where LICENSE_COST = 0
and LICENSE_RESTRICTIONS = 0
and ADMINISTRATION_COST < 1
and RUNS_ON = :YOUR_CHOICE
and RELIABILITY is not null;

Ciao
--
Nando Dessena
http://www.flamerobin.org