Relation: Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows. Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations. There are some properties that differentiate relation tables from non-relation tables.

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Answer 1

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Chapter 2, Problem 2.3RQ

Program Plan Intro

Relation:

Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.

Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.

There are some properties that differentiate relation tables from non-relation tables.

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Primary key identifies a unique tuple of a relation, true or false?

A relation cannot have: Multi-values attributes Several super-keys Composite attributes Attributes with atomic values

How does a relation's primary key affect its attributes' functional dependencies?

Answer 2

Question

Chapter 2, Problem 2.3RQ

Program Plan Intro

Relation:

Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.

Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.

There are some properties that differentiate relation tables from non-relation tables.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 2, Problem 2.3RQ

Program Plan Intro

Relation:

Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.

Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.

There are some properties that differentiate relation tables from non-relation tables.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Chapter 2, Problem 2.3RQ

Program Plan Intro

Relation:

Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.

Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.

There are some properties that differentiate relation tables from non-relation tables.

Expert Solution & Answer

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Answer 5

Chapter 2, Problem 2.3RQ

Program Plan Intro

Relation:

Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.

Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.

There are some properties that differentiate relation tables from non-relation tables.

Answer 6

Chapter 2, Problem 2.3RQ

Program Plan Intro

Relation:

Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.

Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.

There are some properties that differentiate relation tables from non-relation tables.

Answer 7

Chapter 2, Problem 2.3RQ

Program Plan Intro

Relation:

Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.

Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.

There are some properties that differentiate relation tables from non-relation tables.

Answer 8

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Answer 9

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Answer 11

Ch. 2 - Prob. 2.1RQ Ch. 2 - Define the term entity, and give an example of an...Ch. 2 - Prob. 2.3RQ Ch. 2 - Prob. 2.4RQ Ch. 2 - Prob. 2.5RQ Ch. 2 - Prob. 2.6RQ Ch. 2 - Prob. 2.7RQ Ch. 2 - Prob. 2.8RQ Ch. 2 - Prob. 2.9RQ Ch. 2 - Define the term unique key and give an example.

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Chapter 2 Solutions