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Refactor Q2.15 query to use JOIN syntax for improved clarity and performance

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Arthur Danjou
2025-10-08 16:22:10 +02:00
parent cdac478b83
commit 82ff2db44c
1 changed files with 3 additions and 2 deletions
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5
M2/SQL/scripts/TP2.sql
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@@ -120,8 +120,9 @@ WHERE Dno NOT IN (SELECT DISTINCT Dep FROM Employe);
-- Q2.15
SELECT 'Q2.15';
SELECT dir.Enom, d.Dnom, d.Ville FROM Employe dir, Departement d
WHERE dir.Eno = d.Directeur and (d.Dno = 1 OR d.Dno = 3);
SELECT dir.Enom, d.Dnom, d.Ville FROM Employe dir
JOIN Departement d on dir.Eno = d.Directeur
WHERE d.Dno IN (1, 3);
-- Q2.16
SELECT 'Q2.16';