delete from invoice_item;
delete from invoice;
delete from ticket;
delete from jo_event;
delete from job_order;
delete from audit_logs;
delete from audit_associations;
delete from customer_vehicle;
delete from mobile_number;
delete from mobile_session;
delete from customer;
delete from vehicle;
delete from vehicle_manufacturer;
delete from battery;
delete from battery_size;
delete from battery_model;
delete from battery_vehicle;