
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Write a python code using Apache Spark to get CSV format as output. Basically, you are required to write to a folder, where each part must be in csv format. You have to organize each of your record as a CSV row when you output from Spark. The output CSV data does not have to contain a header line. The final hand in should be a single python file, named BDM_HW_lastname.py that takes exactly 2 arguments for input and output path respectively. Your code will be run with 2 executors, 5 cores per executors.
Note: Assume input data contains 5-8 columns and large numbers of rows.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 4 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Write a stylesheet (person.xsl) file to produce the following output: Personal Information Name: Amy Date of Birth: 1/Jan/2000 Gender: F Address Street Number Street Name City Figtree Northfield Ave Wollongong Home 1/24 NoName Office Room 3.000 You can use the following header in your xsl filearrow_forwardHaving a hard time figuring out this Python code. Would really appreciate some helparrow_forwardThere is a csv file called Air_Quality.csv. It has 12 columns and 17,000 rows. One column titled 'Name' which has a various emissions listed in it. Another column titled 'Geo Place Name' has a list of cities. Write a code (in the most basic Python) which finds the two emissions called PM2.5-Attributable Respiratory Hospitalizations (Adults 20 Yrs and Older) and PM2.5-Attributable Respiratory Hospitalizations (Adults 40 Yrs and Older)within the column and prints out which city has the respiratory hospitalizations for both 20 years and older and 40 years and older based on a column called 'Data Value' Below is a picture of a small chunk of the csv file.arrow_forward
- PYTHON I have a file name KindOfNumbers.csv In that csv file there are these numbers: 2, 3, 6, 8, 9, 13, 16, 15, 28, 97, 64, 67, 59, 100, 128, 496, 386 893 4567, 843, 894, 935, 974, 863, 991. In PYTHON, After reading the data from the csv file, CREATE THE FOLLOWING LISTS FROM GIVEN NUMBERS: _PRIME NUMBERS _PERFECT NUMBERS _ODD NUMBERS _EVEN NUMBERS ***EACH LIST SHOULD BE SORTED. ***WRITE THE ARRAYS, INCLUDING THE SORTED ORIGINAL, TO A FILE WITH APPROPRIATE DESCRIPTION INCLUDING THE NUMBERS OF VALUES IN THE ARRAY.arrow_forwardA miniature robot designed to mimic the behavior of an ant is being tested to evaluate the robot’s ability to avoid a chemical repellant (the robot has a chemical sensor, and a control loop that makes the robot avoid moving in a direction that will result in the sensor detecting a chemical concentration above a certain limit). The x and y positions of the robot are measured with time, and the resulting data is saved to a file called data.txt which contains 3 columns: the time of the measurement (in seconds), the x position (in cm), and the y position (in cm). The first line of the file is a “header”: it has a single integer that specifies how many lines of data follow. Write a C++ program called ant.cpp that reads files of this type (i.e., your program should work with another, but similar, file!) and then does the following: it asks for an X and Y position, and then prints to screen the time at which the ant robot was closest to this position. For example, if we wish to know when the…arrow_forwardUsing JAVA OOP, needs to work on the eclipse IDE The international Olympics Committee has asked you to write a program to process their data and determine the medal winners for the pairs figure skating. You will be given a file named Pairs.txt.This file contains the data for each pair of skaters. The data consists of each skater’s name, their country and the score from each of eight judges on the technical aspects and on the performance aspects. A typical record in the file would be as follows: SmithJonesAustralia5.0 4.9 5.1 5.2 5.0 5.1 5.2 4.84.3 4.7 4.8 4.9 4.6 4.8 4.9 4.5 LennonMurrayEngland2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.83.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8GustoPetitotItalia4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.85.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8LahaiePetitFrance1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.85.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8BilodeauBernardCanada2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.84.1 4.2 4.3 4.8 4.9 4.6 4.0 4.5LahorePedroMexico3.2 3.1 3.8 3.9 3.0 3.6 3.9 3.35.9 5.8 5.8 5.8 5.9 5.6 5.0…arrow_forward
- In pythonarrow_forwardWrite a program to draw a quiz score histogram. Your program shouldread data from a file. Each line of the file contains a number in the range0-10. Your program must count the number of occurrences of each scoreand then draw a vertical bar chart with a bar for each possible score (0-10) with a height corresponding to the count of that score. For example,if 15 students got an 8, then the height of the bar for 8 should be 15.Hint: Use a list that stores the count for each possible score. An examplehistogram is shown below: o o D D0 1 2 3 4 5 6 7 8 9 10arrow_forwarduse PYTHON Even though Windows and macOS sometimes hide them, most files have file extensionsLinks to an external site., a suffix that starts with a period (.) at the end of their name. For instance, file names for GIFsLinks to an external site. end with .gif, and file names for JPEGsLinks to an external site. end with .jpg or .jpeg. When you double-click on a file to open it, your computer uses its file extension to determine which program to launch. Web browsers, by contrast, rely on media typesLinks to an external site., formerly known as MIME types, to determine how to display files that live on the web. When you download a file from a web server, that server sends an HTTP headerLinks to an external site., along with the file itself, indicating the file’s media type. For instance, the media type for a GIF is image/gif, and the media type for a JPEG is image/jpeg. To determine the media type for a file, a web server typically looks at the file’s extension, mapping one to the other.…arrow_forward
- IN PYTHON: Decrypting with ascii I have a file called 'dict.txt'. This file contains over 50,000 english words. One word from this file is used as a key (we do not know which one of course). Some have capital letters. I have another file called 'decrypt.txt' which is a file containing a string of numbers i must decrypt using a key found in the 'dict.txt'. This 'decrypt.txt' file message has length of 300. My question is, since i do not know which word (from the file with the 50,000+ words) is the key I must use to decrypt the other file, how do I write a function that: loops through all possible keys from 'dict.txt' to find the one that decrypts my file 'decrypt.txt' best? Somehow i must count how many 'words' are actual words to determine which key is best and then print my final decrypted message.arrow_forwardin python. you will import the json module. Write a class named SatData that reads a JSON file containing data on 2010 SAT results for New York City and writes the data to a text file in CSV format. Your code does not need to access the internet. CSV is a very simple format - just commas separating columns and newlines separating rows (see note below about commas that are part of field names). You'll see an example of CSV format below. There is a csv module for Python, but you will not use it for this project. Your class should have: an init method that reads the file and stores it in whatever data member(s) you prefer. Any data members of the SatData class must be private. a method named save_as_csv that takes as a parameter a list of DBNs (district bureau numbers) and saves a CSV file that looks like this, but with only the rows that correspond to the DBNs in the list (and also the row of column headers). To see what CSV syntax looks like, open the file as a text file rather than as…arrow_forwardIn python: Your company keeps a list of employee information for each pay period in a text file. The format of each line of the file is following: <name>, <rate>, <hours worked>. Write a program that inputs a file from the user and prints to the terminal a report of the wages paid to the employees for the given period. The report should be in tabular format with the appropriate header. Each line should contain employee's name, the hours worked, and the wages paid for that period.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education

Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education

Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON

Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON

C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON

Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning

Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education