ajout de la gestion des clients

db.sql

@@ -44,3 +44,13 @@ CREATE TABLE language (
 );
 
 INSERT INTO language (name) VALUES ('bash');
+
+CREATE TABLE clients (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(100) NOT NULL,
+    client_code CHAR(3) NOT NULL UNIQUE CHECK (client_code REGEXP '^[A-Z0-9]{3}$'),
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+
+INSERT INTO clients (name, client_code) VALUES ('Example Client', 'ABC');