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Recursive SQL Queries

darc33
darc33 asked
on
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Last Modified: 2007-12-19
I was trying to study for my databases exam, and I found an excersice in a book quite interestiing, but cant solve it, can anybody helpe with this?

Assume the following table has been created -
CREATE TABLE FLIGHTS
( START VARCHAR(30) NOT NULL,
DESTINATION VARCHAR(30) NOT NULL,
DISTANCE INTEGER NOT NULL
) ;

and populated with data to represent available airline flights between specified ‘start’ and
‘destination’ airports. Write a recursive SQL query to identify all the places that can be
reached by a sequence of connected flights, starting from Gatwick and involving less than
10 stops. Your result set should show the total distance flown from Gatwick for each
destination.
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