I do not have any common key to join in both tables. I need to see STY_ID relevant BOO_PAYMENT_AMOUNT. For ex : STY_ID values are A,B,C….BOOKING PAYMENT AMOUNT values are 10,20,30 etc., If I click 'A' in STY_ID that should display the relevant value in BOO_PAYMENY_AMOUNT. How can do this if there's no common key in both tables ?