Consider the following relation for product for xyz company. Products Product_ID PaymentDate Salesman Commision_amount Discount_amount With the following dependencies PaymentDate -> Discount_amount Salesman -> Commission_amount Apply normalization until the relationship meets the requirements of 3nf.

Consider the following relation for product for xyz company. Products Product_ID PaymentDate Salesman Commision_amount Discount_amount With the following dependencies PaymentDate -> Discount_amount Salesman -> Commission_amount Apply normalization until the relationship meets the requirements of 3nf.

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter4: Constraints

Section: Chapter Questions

Problem 1RQ: What is the difference between a PRIMARY KEY constraint and a UNIQUE constraint?

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In SQL, foreign key constraints can reference only the primary key attributes ofthe referenced relation or other attributes declared to be a superkey using theunique constraint. As a result, total participation constraints on a many-to-manyrelationship set (or on the “one” side of a one-to-many relationship set) cannotbe enforced on the relations created from the relationship set, using primarykey, foreign key, and not null constraints on the relations. Explain why
What is the difference between a PRIMARY KEY constraint and a UNIQUE constraint?
Design a variant of the hybrid merge-join algorithm for the case where both relations are not physically sorted, but both have a sorted secondary index on the join attributes.
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Create a version of the hybrid merge-join method that is suitable for situations where both relations are not physically sorted but have a sorted secondary index on the attributes to be joined?
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A hybrid merge-join strategy should be developed for the circumstance when both relations are not physically sorted, but both contain an index on the attributes that are being merged.
convert it to relations that are normalization