Write the relational algebra formula to apply a UNION relational operator to the tables shown in Figure
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Figure Q3.13:
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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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Related Book For
Database Systems Design Implementation and Management
ISBN: 978-1337627900
13th edition
Authors: Carlos Coronel, Steven Morris
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