Update Clinique_RO.sql

Clinique_RO.sql

@@ -24,7 +24,7 @@ CREATE TYPE listTraitements AS TABLE OF traitement;
 
 
 CREATE TABLE client (
-    id_client NUMBER NOT NULL,
+    id_client NUMBER,
     nom VARCHAR(20) NOT NULL,
     prenom VARCHAR(20) NOT NULL,
     dn DATE NOT NULL,
@@ -36,15 +36,15 @@ CREATE TABLE client (
 
 CREATE  TABLE espece(
     classeEspece VARCHAR(30) NOT NULL,
-    espece VARCHAR(20) NOT NULL,
+    espece VARCHAR(20),
     PRIMARY KEY(espece)
 );
 /
 
 CREATE  TABLE animal(
-    id_animal NUMBER NOT NULL,
-    id_client NUMBER NOT NULL,
-    espece VARCHAR(20) NOT NULL,
+    id_animal NUMBER,
+    id_client NUMBER,
+    espece VARCHAR(20),
     nom VARCHAR(20),
     poid FLOAT,
     TAILLE FLOAT,