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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.
Database Systems: Design, Implemen...
Solutions
Database Systems: Design, Implemen...
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.
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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