Question: Write the relational algebra formula to apply a UNION relational operator to the tables shown in Figure Q3.13. Figure Q3.13: Database name: Ch03_VendingCo Table name:

Write the relational algebra formula to apply a UNION relational operator to the tables shown in Figure Q3.13.

Figure Q3.13:

Database name: Ch03_VendingCo Table name: MACHINE MACHINE_PRODUCT MACHINE_PRICE Table name: BOOTH BOOTH PRODUCT BOOTH PR

Database name: Ch03_VendingCo Table name: MACHINE MACHINE_PRODUCT MACHINE_PRICE Table name: BOOTH BOOTH PRODUCT BOOTH PRICE 1.5 1.25 1.25 Chips Chocolate Bar Chips Cola Energy Drink Energy Drink

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