Update CREATE.sql

src/database/CREATE.sql

@@ -179,6 +179,65 @@ FROM exemplaire
 JOIN exemplairepret ON exemplaire.ref = exemplairepret.ref
 GROUP BY "category";
 
+CREATE OR REPLACE VIEW RessourcesPopulaires AS
+    SELECT r.titre, COUNT(ep.ref) nb_emprunt 
+    FROM Ressource r JOIN Exemplaire e ON e.ressource = r.codeUnique JOIN ExemplairePret ep ON ep.ref = e.ref 
+    GROUP BY r.titre 
+    HAVING COUNT(ep.ref) > 2 
+    ORDER BY COUNT(ep.ref) DESC;
+
+CREATE OR REPLACE VIEW GenresPopulaires AS
+    SELECT r.genre, COUNT(ep.ref) nb_emprunt 
+    FROM Ressource r JOIN Exemplaire e ON e.ressource = r.codeUnique JOIN ExemplairePret ep ON ep.ref = e.ref 
+    GROUP BY r.genre 
+    HAVING COUNT(ep.ref) > 2 
+    ORDER BY COUNT(ep.ref) DESC;
+
+CREATE OR REPLACE VIEW LivresPopulaire AS
+    SELECT r.titre, COUNT(ep.ref) nb_emprunt
+    FROM Livre l JOIN Ressource r ON l.codeUnique = r.codeUnique JOIN Exemplaire e ON e.ressource = r.codeUnique JOIN ExemplairePret ep ON ep.ref = e.ref
+    GROUP BY r.titre 
+    HAVING COUNT(ep.ref) > 2 
+    ORDER BY COUNT(ep.ref) DESC;
+
+CREATE OR REPLACE VIEW OeuvresMusicalesPopulaire AS
+    SELECT r.titre, COUNT(ep.ref) nb_emprunt
+    FROM OeuvreMusicale om JOIN Ressource r ON om.codeUnique = r.codeUnique JOIN Exemplaire e ON e.ressource = r.codeUnique JOIN ExemplairePret ep ON ep.ref = e.ref   
+    GROUP BY r.titre 
+    HAVING COUNT(ep.ref) > 2 
+    ORDER BY COUNT(ep.ref) DESC;
+
+CREATE OR REPLACE VIEW FilmsPopulaires AS 
+    SELECT r.titre, COUNT(ep.ref) nb_emprunt
+    FROM Film f JOIN Ressource r ON f.codeUnique = r.codeUnique JOIN Exemplaire e ON e.ressource = r.codeUnique JOIN ExemplairePret ep ON ep.ref = e.ref
+    GROUP BY r.titre 
+    HAVING COUNT(ep.ref) > 2 
+    ORDER BY COUNT(ep.ref) DESC;
+
+CREATE OR REPLACE VIEW DureeMaxEmpruntParAdherent AS
+    SELECT u.nom, MAX(duree) dureeEmpruntMax
+    FROM Adherent a JOIN Pret p ON p.adherent = a.login JOIN Utilisateur u ON u.login = a.login 
+    GROUP BY u.nom
+    ORDER BY MAX(duree) DESC;
+
+CREATE OR REPLACE VIEW DureeMoyenneEmpruntParAdherent AS
+    SELECT u.nom, AVG(duree) dureeMoyenneEmprunt
+    FROM Adherent a JOIN Pret p ON p.adherent = a.login JOIN Utilisateur u ON u.login = a.login 
+    GROUP BY u.nom
+    ORDER BY AVG(duree) DESC;
+
+CREATE OR REPLACE VIEW DureeMaxEmpruntParRessource AS
+    SELECT r.titre, MAX(duree) dureeEmpruntMax
+    FROM Ressource r JOIN Exemplaire e ON e.ressource = r.codeUnique JOIN ExemplairePret ep ON ep.ref = e.ref JOIN Pret p ON p.pretID = ep.pret
+    GROUP BY r.titre
+    ORDER BY MAX(duree) DESC;
+
+CREATE OR REPLACE VIEW DureeMoyenneEmpruntParRessource AS
+    SELECT r.titre, AVG(duree) dureeMoyenneEmprunt
+    FROM Ressource r JOIN Exemplaire e ON e.ressource = r.codeUnique JOIN ExemplairePret ep ON ep.ref = e.ref JOIN Pret p ON p.pretID = ep.pret
+    GROUP BY r.titre
+    ORDER BY AVG(duree) DESC;
+
 
  /* ****** TRIGGERS ****** */