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Database System Concepts
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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Need help answering these questions in python. Thanks
Suppose that x and y are strings. Which of one the following expressions would be equivalent to x.replace(y, ", 1)? x[:x. find(y)]+x[x.find(y)+1:] x[ :x.find(y)]+x[x.find(y)+len(y):] Ox[x.find(y):]+x[:x.find(y)+len(y)] Ox[x.find(y):]+x[x.find(y)-1:] ONone of these options
Transcribed Image Text:Suppose that x and y are strings. Which of one the following expressions would be equivalent to x.replace(y, ", 1)? x[:x. find(y)]+x[x.find(y)+1:] x[ :x.find(y)]+x[x.find(y)+len(y):] Ox[x.find(y):]+x[:x.find(y)+len(y)] Ox[x.find(y):]+x[x.find(y)-1:] ONone of these options
A compound Boolean expression that will evaluate to True if and only if both of its subexpressions evaluate to True is created using which of the following logical operators? O both_true O and Onot Oxor Oor None of these options
Transcribed Image Text:A compound Boolean expression that will evaluate to True if and only if both of its subexpressions evaluate to True is created using which of the following logical operators? O both_true O and Onot Oxor Oor None of these options
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