Ejemplos de semántica procedural (1)
Flight Num
Fromc
Toc
Carrier
DTime
ATime
Days
Way
IB-4625
Madrid
Amsterdam
Iberia
11.45
12.35
MON, TUE
DIRECT

What is the departure time of AF-8969 from Paris?
SELECT FlightNum, Fromc, Dtime, FROM db
WHERE FlightNum = AF-8969 AND Fromc = Paris