CALL insert_product($prod$Rye Flour$prod$, $category$Flour$category$, $group$Grains$group$);
CALL insert_transaction('2021-12-15 12:00', $store$Faith Leman$store$, $descr$Rye flour at 20kg Co-op price$descr$, 2.5, $unit$kg$unit$, 9, $produ$Rye Flour$produ$, true);
CALL insert_transaction('2021-12-15 12:00', $store$Faith Leman$store$, $descr$Local Market Cabbage$descr$, 1.00, $unit$Pieces$unit$, 3, $produ$Cabbage$produ$, false);
