Surrogate primary key: A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key. It is deputy of the primary key and will act as a primary key in the database and does not have any other significance. To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

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Answer 1

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Chapter 5, Problem 14RQ

Program Plan Intro

Surrogate primary key:

A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.

It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.

To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

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Answer 2

Question

Chapter 5, Problem 14RQ

Program Plan Intro

Surrogate primary key:

A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.

It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.

To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

Question

Chapter 5, Problem 14RQ

Program Plan Intro

Surrogate primary key:

A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.

It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.

To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

Expert Solution & Answer

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Answer 4

Question

Chapter 5, Problem 14RQ

Program Plan Intro

Surrogate primary key:

A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.

It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.

To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

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Answer 5

Chapter 5, Problem 14RQ

Program Plan Intro

Surrogate primary key:

A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.

It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.

To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

Answer 6

Chapter 5, Problem 14RQ

Program Plan Intro

Surrogate primary key:

A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.

It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.

To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

Answer 7

Chapter 5, Problem 14RQ

Program Plan Intro

Surrogate primary key:

A system assigned primary key in a relational database such as a serial number or any other which is not derived from any data in the database is known as surrogate primary key.

It is deputy of the primary key and will act as a primary key in the database and does not have any other significance.

To simplify the primary key structures in the database, surrogate primary keys are created, and this ensures unique identification process in a relation.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 5 - Prob. 1RQ Ch. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQ Ch. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQ Ch. 5 - What is a disjoint subtype? Give an example.Ch. 5 - What is the difference between partial...Ch. 5 - Prob. 8RQ Ch. 5 - According to the data model, is it required that...Ch. 5 - Prob. 10RQ

Solution Summary: The author explains that surrogate primary keys are created to simplify the primary key structures in a relational database.

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