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vista.sql

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GID Projects 2020-06-27 16:26:57 -04:00
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-- 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);