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diff --git a/BDD/tp/BDDs2/tp13/tp13.sql b/BDD/tp/BDDs2/tp13/tp13.sql
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+-- Question 1
+SELECT * FROM PG_ROLES;
+
+-- Question 2
+CREATE TABLE Test_anperederii(id char(4), msg varchar(30));
+
+INSERT INTO Test_anperederii VALUES('0001', 'Hello tout le monde');
+INSERT INTO Test_anperederii VALUES('0002', 'Hello le monde');
+INSERT INTO Test_anperederii VALUES('0003', 'Hello tous');
+INSERT INTO Test_anperederii VALUES('0004', 'lo tout le monde');
+
+-- Question 3
+GRANT UPDATE, DELETE ON Test_anperederii TO kychabanon1;
+
+-- Question 4
+-- UPDATE TABLE Test_anperederii(id CHAR(4), msg varchar(30), nb numeric);
+ALTER TABLE Test_anperederii ADD nb numeric;
+
+-- ou UPDATE TABLE Test... ADD nb numeric; on a pas les privileges
+
+-- Question 5
+
+
+-- Question 6
+GRANT SELECT ON Test_anperederii TO PUBLIC;
+
+-- Question 7
+INSERT INTO Test_anperederii VALUES('0004', 'lo tout le monde');
+-- ca l'insert
+
+-- Question 8
+-- il faut qu'il me donne les droits
+
+-- Question 9
+REVOKE SELECT ON Test_anperederii FROM PUBLIC;
+
+
+
+