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Explain the θ-join and equijoin
Refer tables Car and Boat which list models of cars and boats and their relevant prices. Assume a customer wants to buy a car and a boat, but she doesn't wish to spend more money for the boat as compared to for the car. The θ -join on the relation CarPrice > BoatPrice generates a table with all the probable options. If the condition employs equality operator then it is also termed as equijoin.
Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to st
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Attribute Preservation This is a easy and obvious necessity that includes preserving all the attributes that were there in the relation that is being decomposed.
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