From 2022563a285be40ed6761b55a6db2a300c926e8c Mon Sep 17 00:00:00 2001
From: Arthur DANJOU <arthurdanjou@outlook.fr>
Date: Thu, 2 Oct 2025 11:47:38 +0200
Subject: [PATCH] =?UTF-8?q?Refactor=20les=20requ=C3=AAtes=20SQL=20pour=20u?=
 =?UTF-8?q?tiliser=20des=20jointures=20explicites=20dans=20les=20sections?=
 =?UTF-8?q?=20Q2.6,=20Q2.7,=20Q2.10=20et=20Q2.11?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 M2/SQL/scripts/TP2.sql | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/M2/SQL/scripts/TP2.sql b/M2/SQL/scripts/TP2.sql
index 2428d83..2adbdb9 100644
--- a/M2/SQL/scripts/TP2.sql
+++ b/M2/SQL/scripts/TP2.sql
@@ -64,14 +64,16 @@ SELECT Enom, Salaire FROM Employe WHERE Salaire < 4000;
 -- Q2.6
 SELECT 'Q2.6';
 
-SELECT e.Enom, e.Prof FROM Employe e, Departement d
-WHERE e.Dep = d.Dno AND d.Ville = 'Lyon';
+SELECT e.Enom, e.Prof FROM Employe e
+JOIN Departement d ON e.Dep = d.Dno
+WHERE d.Ville = 'Lyon';
 
 -- Q2.7
 SELECT 'Q2.7';
 
-SELECT Enom, Prof FROM Employe e, Departement d
-WHERE d.Directeur = e.Eno AND d.Dnom = 'Production';
+SELECT Enom, Prof FROM Employe e
+JOIN Departement d ON e.Dep = d.Dno
+WHERE d.Dnom = 'Production';
 
 -- Q2.8
 SELECT 'Q2.8';
@@ -87,14 +89,14 @@ SELECT * FROM Employe, Departement;
 -- Q.2.10
 SELECT 'Q2.10';
 
-SELECT e.Enom, d.Dnom FROM Employe e, Departement d
-WHERE e.Dep = d.Dno;
+SELECT e.Enom, d.Dnom FROM Employe e JOIN Departement d ON e.Dep = d.Dno;
 
 -- Q2.11
 SELECT 'Q2.11';
 
-SELECT e.Enom, d.Dnom, dir.Enom AS Directeur FROM Employe e, Departement d, Employe dir
-WHERE e.Dep = d.Dno AND d.Directeur = dir.Eno;
+SELECT e.Enom, d.Dnom, dir.Enom AS Directeur FROM Employe e
+JOIN Departement d ON e.Dep = d.Dno
+JOIN Employe dir ON d.Directeur = dir.Eno;
 
 -- Q2.12
 SELECT 'Q2.12';