On the other hand, if the login credential is wrong then an error occurs, and we are prompted to re-enter our Email ID and Password.

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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This problem can be solved in many ways so, we will encourage you to think and draw a flowchart for this problem using your imagination. To log in to Facebook account we first enter the Facebook URL www.facebook.com in our browser like Google, Firefox, Safari, Internet Explorer etc. This request is sent to the Facebook server and it responds by sending us the home page of Facebook. Next, we enter our registered Email ID and Password and click the Login button. Then our login credential is checked. If it is correct, our profile appears. On the other hand, if the login credential is wrong then an error occurs, and we are prompted to re-enter our Email ID and Password.

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