Please write a phone book application. It should work as follows: command (1 search, 2 add, 3 quit): 2 name: peter number: 040-5466745 ok! command (1 search, 2 add, 3 quit): 2 name: emily number: 045-1212344 ok!

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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Can you use Python programming language to to this question?

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Please write a phone book application. It should work as follows:
command (1 search, 2 add, 3 quit): 2
name: peter
number: 040-5466745
ok!
command (1 search, 2 add, 3 quit): 2
name: emily
number: 045-1212344
ok!
command (1 search, 2 add, 3 quit): 1
name: peter
040-5466745
command (1 search, 2 add, 3 quit): 1
name: mary
no number
command (1 search, 2 add, 3 quit): 2
name: peter
number: 09-22223333
ok!
command (1 search, 2 add, 3 quit): 1
name: peter
09-22223333
command (1 search, 2 add, 3 quit): 3
quitting...
Sample output
As you can see above, each name can be attached to a single number only. If a new entry
with the same name is added, the number attached to the old entry is replaced with the
new number.
Transcribed Image Text:Please write a phone book application. It should work as follows: command (1 search, 2 add, 3 quit): 2 name: peter number: 040-5466745 ok! command (1 search, 2 add, 3 quit): 2 name: emily number: 045-1212344 ok! command (1 search, 2 add, 3 quit): 1 name: peter 040-5466745 command (1 search, 2 add, 3 quit): 1 name: mary no number command (1 search, 2 add, 3 quit): 2 name: peter number: 09-22223333 ok! command (1 search, 2 add, 3 quit): 1 name: peter 09-22223333 command (1 search, 2 add, 3 quit): 3 quitting... Sample output As you can see above, each name can be attached to a single number only. If a new entry with the same name is added, the number attached to the old entry is replaced with the new number.
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