-- Exercice 1
DROP TABLE tligne;
CREATE TABLE tligne (ligne varchar2(100));

set echo off;
set verify off;
set feed off;

variable vnumvehicule char(5)
variable toto char(5)

prompt Entrer le numero du vehicule :

accept vnumvehicule

declare

dimmatriculation char(10); 
dmodele varchar2(30);

begin

select immat, modele into dimmatriculation, dmodele
from Tvehicule2017
where noveh='&vnumvehicule';

Insert into tligne values (dimmatriculation||dmodele);

exception
when no_data_found then
     insert into tligne values ('&vnumvehicule'||'de vehicule inconnu');
end;
.
/
select * from tligne;

set echo on;
set verify on;
set feed on;

-- Exercice 2

DROP TABLE tligne;
CREATE TABLE tligne (ligne varchar2(100));

set echo off;
set verify off;
set feed off;

variable vnoclient char(4)
 
prompt Entrer le numero du  client :
accept vnoclient

declare
dnovehicule  char(5); 

BEGIN

select noveh into dnovehicule
from Tlocation2017
where noclient='&vnoclient';

Insert into tligne values ('vehicule '||dnovehicule||' loue par '||'&vnoclient');

exception
 when no_data_found then
 insert into tligne values ('aucune location pour '||'&vnoclient');

when too_many_rows then
insert into tligne values ('plusieurs locations pour '||'&vnoclient');

end;
.
/
select * from tligne;

set echo on;
set verify on;
set feed on;

-- Exercice 3

DROP TABLE tligne;
CREATE TABLE tligne (ligne varchar2(100));

-- set echo off;
-- set verify off;
-- set feed off;

variable vnovehicule char(5);
variable vdateretour date;
variable vkmfin number;

prompt Entrer le numero du vehicule :
accept vnovehicule

prompt Entrer la date de retour :
accept vdateretour

prompt Entrer le kilometrage de fin :
accept vkmfin

declare

dnovehicule  char(5);
ddatedebut  date;
dkmdeb  number;
dnoclient char(4);

dmessage  varchar2(100);

begin

dmessage:='numero de vehicule inconnu';

select noveh into dnovehicule
from Tvehicule2017
where noveh='&vnovehicule';

dmessage:='Vehicule pas en cours de location';

select noclient into dnoclient
from Tlocation2017
where noveh='&vnovehicule';

select datedeb, kmdeb, noclient into ddatedebut, dkmdeb, dnoclient
from Tlocation2017
where noveh='&vnovehicule';

if ddatedebut > &vdateretour
 then Insert into tligne values ('PB date de retour inf date debut');
end if;

if dkmdeb > &vkmfin
 then Insert into tligne values ('PB Km de retour inf KM debut');
end if;

-- Insert into Tlocatretour2017 values (dnoclient,'&vnovehicule',ddatedebut,dkmdeb,&vkmfin,&vdateretour);

Insert into Tlocatretour2017 values (dnoclient,'&vnovehicule',ddatedebut,dkmdeb,&vkmfin,to_date('15-12-2016','DD-MM-YYYY'));

Insert into tligne values ('retour ok');

exception
when no_data_found then insert into tligne values (dmessage);

end;

.
/

select * from tligne;

-- set echo on;
-- set verify on;
-- set feed on;