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URI Problem 2613 Solution Cheap Movies - URI Online Judge Solution

URI Online Judge Solution 2613 Cheap Movies Using PostgreSQL Query Language.

In the past the studio has made an event where several movies were on sale, we want to know what movies these were. Your job to help us is to select the ID and name of movies whose price is less than 2.00.

Schema

movies
ColumnType
id (PK)numeric
namevarchar
id_prices (FK)numeric
 
prices
ColumnType
id (PK)numeric
categorievarchar
valuenumeric

Tables

movies
idnameid_prices
1Batman3
2The Battle of the Dark River3
3White Duck5
4Breaking Barriers4
5The Two Hours2
 
prices
idcategorievalue
1Releases3.50
2Bronze Seal2.00
3Silver Seal2.50
4Gold Seal3.00
5Promotion1.50

Output Sample

idname
3White Duck

URI 2613 Solution in SQL:


SELECT movies.id,movies.name
FROM movies
INNER JOIN prices ON movies.id_prices=prices.id
WHERE prices.value < 2.00

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