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Merge pull request #12 from cromerc/feature_Consulta_2

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Feature consulta 2
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Chris Cromer 2020-06-26 22:05:31 -04:00 committed by GitHub
commit 2ea00bb0b2
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1 changed files with 25 additions and 0 deletions
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consulta.sql
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@ -10,3 +10,28 @@ WHERE A.ID_ATLETA NOT IN (
LEFT JOIN PARTICIPAR_PRECOMPETENCIA PP2 ON (PP2.ID_PRECOMPETENCIA = P.ID_PRECOMPETENCIA)
WHERE (PC.ID_ATLETA = PP2.ID_ATLETA)
);
-- Consulta 2 de la guia
/*Parte 1 Crear una vista que trae la cantidad maxima de atletas asociados a un pais que compitan en Atletismo*/
CREATE OR REPLACE VIEW MAX_ATLETA_ATLETISMO_PAIS AS
SELECT P.id_pais, P.nombre, COUNT(*) AS Cantidad_Atleta FROM competencia C
LEFT JOIN
Participar_Competencia PC on C.id_competencia = PC.id_competencia
LEFT JOIN
Atleta A on A.id_atleta = PC.id_atleta
INNER JOIN
Delegacion D on D.atleta = A.id_atleta
INNER JOIN
PAIS P on p.id_pais = D.pais
WHERE
tipo = (SELECT TD.id_tipo FROM tipos_deportes TD WHERE TD.descripcion = 'Atletismo')
GROUP BY
P.id_pais, P.nombre;
SELECT P.NOMBRE, M.CANTIDAD_ATLETA FROM MAX_ATLETA_ATLETISMO_PAIS M
LEFT JOIN PAIS P ON (P.ID_PAIS = M.ID_PAIS)
WHERE (M.CANTIDAD_ATLETA = (SELECT MAX(CANTIDAD_ATLETA) FROM MAX_ATLETA_ATLETISMO_PAIS))