Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Concept explainers

Literals
A literal in computer science is used to express a fixed value in source code. They cannot be modified. Almost all programs have these fixed values or literals.
Question

For each of the following statements, state whether it is True or False.

(2) (a U b)* b (a U b)* = a* b (a U b)* O True O False
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Transcribed Image Text:(2) (a U b)* b (a U b)* = a* b (a U b)* O True O False
Expert Solution
Check Mark
Step 1: Concept of regular expressions :

Regular expression are string patterns that can match to a large string combination which can contain any form of text in it including letters and alphabets.

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