diff --git a/createdatabase.py b/createdatabase.py
index 6ae117c..7b87b08 100755
--- a/createdatabase.py
+++ b/createdatabase.py
@@ -244,4 +244,30 @@ if __name__ == '__main__':
                     )
                 conn.commit()
     t.stop()
+    
+    t.start('Add Modify Trigger')
+    with conn.cursor() as curs:
+        curs.execute("""
+            CREATE OR REPLACE FUNCTION %(schema)s.block_maj_reg_dep() 
+            RETURNS TRIGGER AS $bloquage$
+            BEGIN
+            RAISE EXCEPTION 
+                'Mise à jour non autorisé';
+            END;
+            $bloquage$ language plpgsql;
+
+            CREATE TRIGGER TRG_BLOQ_MAJ_REG 
+                BEFORE INSERT OR UPDATE OR DELETE ON %(schema)s.region 
+        
+            FOR EACH ROW EXECUTE PROCEDURE %(schema)s.block_maj_reg_dep();
+
+            CREATE TRIGGER TRG_BLOQ_MAJ_DEP 
+                BEFORE INSERT OR UPDATE OR DELETE ON %(schema)s.departement 
+        
+            FOR EACH ROW EXECUTE PROCEDURE %(schema)s.block_maj_reg_dep();
+            """,
+            {'schema':AsIs(args.schema_name)})
+        conn.commit()
+
+    t.stop()
     conn.close()