diff --git a/DEV2.1/tp4.txt b/DEV2.1/tp4.txt
deleted file mode 100755
index 53441d6..0000000
--- a/DEV2.1/tp4.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-insert into AEROPORT values('LFPG','CDG', 'PARIS', 'FRANCE'); 
-insert into AEROPORT values('LFPG','crocs', 'PARIS', 'FRANCE'); 
-insert into AEROPORT values('LFPO','ORLY', 'PARIS', 'FRANCE'); 
-insert into AEROPORT values('LFML','MRS', 'MARSEILLE', 'FRANCE'); 
-insert into AEROPORT values(null,'UI', 'MARSEILLE', 'FRANCE'); 
-
-ORA-00001: violation de contrainte unique (MELIANI.SYS_C0083286)
-ORA-01400: impossible d'insérer NULL dans ("MELIANI"."AEROPORT"."CODEAEROPORT")
-
-Exo2 
-Create table ESCALE(numVol int, numEscale int, aeroportDepart varchar(15) references Aeroport,
-aeroportArrivee varchar(15) references Aeroport, heureDepartPrevue int, minuteDepartPrevue int, heureArriveePrevue int, minuteArriveePrevue int, primary key(numVol, numEscale)); 
-
-CREATE TABLE INSTANCE_ESCALE(numVol int, numEscale int, dateEscale date, nbreSieges int, idAvion int references Avion, dateDepartEffectue date, dateArriveeEffectue date,idEquipe int,
- primary key(numVol, numEscale, dateEscale), foreign key(numVol, numEscale)references ESCALE); 
-
-ALTER TABLE INSTANCE_ESCALE ADD FOREIGN KEY(idEquipe) REFERENCES Equipage; 
-
-CREATE TABLE Equipage(numVol int, numEscale int, dateEscale date, idEquipe int primary key, idPilote int, idCoPilote int, idChefCabine int, foreign key(numVol,numEscale,dateEscale) references INSTANCE_ESCALE);
-
-CREATE TABLE HOTESSE_EQUIPAGE(idEquipe int references Equipage references Personnel, idPersonne int, primary key(idEquipe,idPersonne));
\ No newline at end of file