In a relational database, the number of columns in a table that are able to satisfy the constraints that have been defined may be decreased by the use of an operation called select. Which is it: the right answer or the erroneous answer?

In a relational database, the number of columns in a table that are able to satisfy the constraints that have been defined may be decreased by the use of an operation called select. Which is it: the right answer or the erroneous answer?

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 5HOA: Access path A database table is composed of records and fields hold data. Data is stored in records....

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In a relational database, the number of columns in a table that are able to satisfy the constraints
that have been defined may be decreased by the use of an operation called select.
Which is it: the right answer or the erroneous answer?

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