Composite primary key can be defined at table level only. Select one: O True O False
Composite primary key can be defined at table level only. Select one: O True O False
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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A composite key is said to be combination of two or more columns in a table which uniquely identifies each row in the table, uniqueness of a row is guaranteed by the combination of columns, but when it is taken individually it does not guarantee uniqueness. IT is also defined as a primary key which is made by the combination of two or more attributes to uniquely identify every row in a table.
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