diff --git a/banque.md b/banque.md
index ed71ef1..effd5ad 100644
--- a/banque.md
+++ b/banque.md
@@ -432,6 +432,14 @@ create table person (
 - Créer une entreprise nommée _Boulangerie de Valorgue_, créée le 19 août 2014, numéro d’immatriculation FR19803269968.
 - Ajouter un nouveau titulaire : _Justin Hébrard_ né le 11/03/1993.
 
+```sql
+create table company (
+  "id" bigint primary key references holder(id),
+  "name" text,
+  "creation_date" date
+);
+```
+
 ```sql
 create table bank (
   "id" bigint primary key references holder(id),
@@ -665,6 +673,24 @@ create table operation (
 );
 ```
 
+#### Dépôts et retraits
+
+```sql
+create or replace procedure add_retrait (
+  p_account_id bigint,
+  p_amount decimal
+)
+language plpgsql
+as $$
+declare
+  v_id bigint
+begin
+end;
+$$;
+```
+
+
+
 # Séance 3 : Exploitation des données
 
 Ajouter des données
diff --git a/banque/banque.1.tables.sql b/banque/banque.1.tables.sql
index 758cb37..a88448a 100644
--- a/banque/banque.1.tables.sql
+++ b/banque/banque.1.tables.sql
@@ -267,12 +267,23 @@ call add_account('EUR', array[1], array[1]);
 call add_account('USD', array[1], array[1]);
 call add_account('YEN', array[1], array[1]);
 
-call add_account('EUR', array[2,3], array[0.6, 0.4]);
+update account set balance = 100000 where id = 1;
+update account set balance = 50000 where id = 2;
+update account set balance = 2000000 where id = 3;
+
+call add_account('EUR', array[2, 3], array[0.6, 0.4]);
 
 call add_person('Kaneda', 'Shōtarō', '1982-12-20');
 call add_account('YEN', array[5], array[1]);
 
-create view holder_detail as
+call add_company('Boucherie Sanzot', 'FR68487684235', '2014-08-14');
+call add_account('EUR', array[6], array[1]);
+
+call add_company('America Logistics', '95-4524149', '1996-09-24');
+call add_account('EUR', array[7], array[1]);
+call add_account('USD', array[7], array[1]);
+
+create or replace view holder_detail as
 select h.id, h.type, 
   case 
   when type = 'PERSON' then firstname || ' ' || lastname
@@ -286,14 +297,20 @@ from holder h
   left join person p on p.id = h.id
   left join company c on c.id = h.id;
 
-create view account_detail as
+create or replace view account_detail as
 select a.balance, 
   a.balance * ah.share as balance_currency,
+  a.balance * ah.share / latest_exchange_rate(a.currency_code),
   a.currency_code,
   hd.nom
 from account a
 join account_holder ah on ah.account_id = a.id
-join holder_detail hd on ah.holder_id = hd.id
+join holder_detail hd on ah.holder_id = hd.id;
+
+
+/************************************************************************
+ * Transactions
+ ************************************************************************/
 
 insert into transaction (amount) values (100);