write XPath expressions in an R Notebook that evaluate the following queries; display the results in your R Notebook. What are the titles of all books written by "Galos, Mike"? List the titles and the prices. In what genre is the book with id "bk109". What are the titles of the books that sell for the lowest price? (Use the min aggregation function)
write XPath expressions in an R Notebook that evaluate the following queries; display the results in your R Notebook. What are the titles of all books written by "Galos, Mike"? List the titles and the prices. In what genre is the book with id "bk109". What are the titles of the books that sell for the lowest price? (Use the min aggregation function)
Fundamentals of Information Systems
9th Edition
ISBN:9781337097536
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter6: Business Intelligence And Analytics
Section: Chapter Questions
Problem 1WE
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write XPath expressions in an R Notebook that evaluate the following queries; display the results in your R Notebook.
- What are the titles of all books written by "Galos, Mike"? List the titles and the prices.
- In what genre is the book with id "bk109".
- What are the titles of the books that sell for the lowest price? (Use the min aggregation function)
- List the title and prices of all books in the "Computer" genre.
- What is the number of all books that cost less than $5? (Use the count aggregation function)
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