Lllustrated here are the SQL statements for a query to select suppliers for parts 137 or 150. They produce a list with the same results as fiqure 5.8
CELECT PRAT. Part_Numbre,SUPPLIER.Supplier_Number AND SUPPLIER.Supplier_Number FROM PART,SUPPLIER
WHERE PART Supplier_Number= SUPPLIER Supplier_Numbe AND . Part_Numbre =137 OR . Part_Numbre=150