ALTER TABLE Statement: “ALTER TABLE” statement comes under Data Definition Language. It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on. Syntax: The Syntax to drop constraint is as follows: ALTER TABLE table_Name ADD CONSTRAINT constraintName;

Question

Mark the BOOK_PRICING table's Category field as empty. Check to see whether the column is no longer accessible.

Answer 1

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Chapter 6, Problem 10CAT

Program Plan Intro

ALTER TABLE Statement:

“ALTER TABLE” statement comes under Data Definition Language.

It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.

Syntax:

The Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

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Mark the Category field in the BOOK_PRICING table as not being used. Check to see if the field can still be used.

Answer 2

Question

Chapter 6, Problem 10CAT

Program Plan Intro

ALTER TABLE Statement:

“ALTER TABLE” statement comes under Data Definition Language.

It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.

Syntax:

The Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

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Answer 3

Question

Chapter 6, Problem 10CAT

Program Plan Intro

ALTER TABLE Statement:

“ALTER TABLE” statement comes under Data Definition Language.

It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.

Syntax:

The Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

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Answer 4

Question

Chapter 6, Problem 10CAT

Program Plan Intro

ALTER TABLE Statement:

“ALTER TABLE” statement comes under Data Definition Language.

It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.

Syntax:

The Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

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Answer 5

Chapter 6, Problem 10CAT

Program Plan Intro

ALTER TABLE Statement:

“ALTER TABLE” statement comes under Data Definition Language.

It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.

Syntax:

The Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

Answer 6

Chapter 6, Problem 10CAT

Program Plan Intro

ALTER TABLE Statement:

“ALTER TABLE” statement comes under Data Definition Language.

It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.

Syntax:

The Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

Answer 7

Chapter 6, Problem 10CAT

Program Plan Intro

ALTER TABLE Statement:

“ALTER TABLE” statement comes under Data Definition Language.

It is used to modify column, add constraints, add column(s), drop column, rename column name and table name, drop constraints, and so on.

Syntax:

The Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

Answer 8

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Ch. 6 - Prob. 1RQ Ch. 6 - Which command and clause adds an individual row to...Ch. 6 - How do you add data from an existing table to...Ch. 6 - Prob. 4RQ Ch. 6 - Which command removes rows from a table?Ch. 6 - Which command makes updates permanent?Ch. 6 - Which command reverses updates? Which updates are...Ch. 6 - Prob. 8RQ Ch. 6 - What is the format of the SET clause that changes...Ch. 6 - Which command and clause adds a column to an...

Solution Summary: The author explains how the ALTER TABLE statement comes under Data Definition Language. It is used to modify columns, add constraints, drop column, rename column name and table name.

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