>I am to list the film title and the leading actor for all of the films
>'Julie Andrews' played in.
>The following is structure of the tables used:
>movie(id, title, yr, director, budget, gross);
>actor(id, name);
>casting(movieid, actorid, ord).
>The column name ord has a value of 1 if the actor is in starring role.
Translate the English in parts:
"all the films "Julie Andrews" olayed in
->
select movie.id
from movie, casting, actor
where movie.id = casting.movieid
and casting.actorid = actor.id
and actor.name = 'Julie Andrews'
then wrap the part "list the film title and the leading actor" around that list
of films:
select movie.name, actor.name
from movie, casting, actor
where movie.id = casting.movieid
and casting.actorid = actor.id
and casting.org = 1
and movie.id in (select movie.id
from movie, casting, actor
where movie.id = casting.movieid
and casting.actorid = actor.id
and actor.name = 'Julie Andrews');
Being able to translate problem statements from well formed human language into
well formed computer language statement(s) "The Solution" is what separates
"programmers" from "coders". The problem statement does not require any
ordering of the results, so they are in visitation order (which is not random,
but may appear to be random to "coders").
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