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Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482

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Chapter
Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482
Chapter 8, Problem 68C
Textbook Problem
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Alter the DETAILRENTAL table to include a derived attribute named DETAIL_DAYS-LATE to store integers of up to three digits. The attribute should accept null values.

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:

Syntax to drop constraint is as follows:

ALTER TABLE table_Name ADD CONSTRAINT constraintName;

Explanation of Solution

Query to alter the table:

ALTER TABLE DETAILRENTAL

ADD DETAIL_DAYSLATE NUMBER(3,0);

Explanation:

The above query is used to add the column “DETAIL_DAYSL...

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Chapter 8 Solutions

Database Systems: Design, Implementation, & Management
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