diff --git a/personnel.sql b/personnel.sql
index c17f293..32d6362 100644
--- a/personnel.sql
+++ b/personnel.sql
@@ -17,6 +17,22 @@ CREATE TABLE Scientifique(
     PRIMARY KEY(idPersonnel)
 );
 
+-- Nathan
+CREATE TYPE echelon AS ENUM (
+    'A*',
+    'A',
+    'B',
+    'C'
+);
+
+-- Nathan
+CREATE TYPE grade AS ENUM (
+    'cr1',
+    'cr2',
+    'mcf',
+    'mcf hors classe'
+);
+
 -- Nathan
 CREATE Evenement(
     idEvenement INT NOT NULL,