 
 -- *** Bill ***
 CREATE TABLE BILL(
-    id BIGINT NOT NULL,
+    id BIGINT NOT NULL AUTO_INCREMENT,
     modificationCounter INTEGER NOT NULL,
     payed BOOLEAN NOT NULL,
     tip DECIMAL(19, 2),


-- *** RestaurantOrder (Order is a reserved keyword in Oracle) ***
CREATE TABLE RESTAURANTORDER(
    id BIGINT NOT NULL,
    modificationCounter INTEGER NOT NULL,
    state INTEGER,
    table_id BIGINT NOT NULL


-- *** OrderPosition ***
CREATE TABLE ORDERPOSITION(
    id BIGINT NOT NULL AUTO_INCREMENT,
    modificationCounter INTEGER NOT NULL,
    comment VARCHAR(255),
    cook_id BIGINT,
