Explain the differences between 2, 2.0, '2', "2", and "2.0".
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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Question
R4.15
Explain the differences between 2, 2.0, '2', "2", and "2.0".
Expert Solution
Step 1
Introduction
A data type is a classification of data that tells a program how the programmer intends to use the data. It is associated with a set of values and operations that can be performed on that data. Common data types include integers, floats, strings, booleans, and arrays. In most programming languages, data types are core components of the language, and must be explicitly declared before they can be used.
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