insert into Customers(Cust_ID, Cust_Name, Cust_Adress, Cust_Number) 
VALUES(seqCustomer.NextVal, 'Mueller', 'Lange Strasse 1', 5000);

insert into Customers(Cust_ID, Cust_Name, Cust_Adress, Cust_Number) 
VALUES(seqCustomer.NextVal, 'Meier', 'Kurze Strasse 4', 6000);

insert into Customers(Cust_ID, Cust_Name, Cust_Adress, Cust_Number) 
VALUES(seqCustomer.NextVal, 'Schulze', 'Querstrasse 8', 7000);
