airport_codes Type the program's output = { 'London': 'LHR', 'Chicago': 'ORD', 'Dallas': 'DAL' print (airport_codes ['Dallas']) airport_codes ['Dallas'] = 'DEW' print (airport_codes ['Chicago']) print (airport_codes ['Dallas'])

airport_codes Type the program's output = { 'London': 'LHR', 'Chicago': 'ORD', 'Dallas': 'DAL' print (airport_codes ['Dallas']) airport_codes ['Dallas'] = 'DEW' print (airport_codes ['Chicago']) print (airport_codes ['Dallas'])

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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Concept explainers

Max Function

Statistical function is of many categories. One of them is a MAX function. The MAX function returns the largest value from the list of arguments passed to it. MAX function always ignores the empty cells when performing the calculation.

Power Function

A power function is a type of single-term function. Its definition states that it is a variable containing a base value raised to a constant value acting as an exponent. This variable may also have a coefficient. For instance, the area of a circle can be given as:

Question

airport_codes
Type the program's output
= {
'London': 'LHR',
'Chicago': 'ORD',
'Dallas': 'DAL'
print (airport_codes ['Dallas'])
airport_codes ['Dallas'] = 'DEW'
print (airport_codes ['Chicago'])
print (airport_codes ['Dallas'])

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