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SQL for Data-science Coursera Assignment Answers
You can find all the quizes and coding answers for the sql for data-science course.
Just give a try by yourself before going to the answers
Remember you can't learn until you do it by your own!
Week 1 Quiz Answers
Week 1 Coding Answers
Week 2 Quiz Answers
Week 2 Coding Answers
Week 3 Quiz Answers
Week 3 Coding Answers
Week 4 Quiz Answers
Week 4 Coding Answers
Peer graded Answers
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Module 2 Quiz >> Week 2 >> SQL for Data Science
Module 2 Quiz TOTAL POINTS 10 1. Question 1 Filtering data is used to do which of the following? (select all that apply) 1 point Reduce the time it takes to run the query Helps you understand the contents of your data Narrows down the results of the data. Removes unwanted data in a calculation Reduces the strain on the client application 2. Question 2 You are doing an analysis on musicians that start with the letter “K”. Select the correct query that would retrieve only the artists whose name starts with this letter. 1 point 123 SELECT name FROM Artists WHERE name LIKE ‘%K’; 123 SELECT name FROM Artists WHERE name LIKE ‘K%’; 123 SELECT name FROM Artists WHERE name LIKE ‘%K%’; 123 SELECT name FROM Artists WHERE name IN ‘K%’; 3. Question 3 A null and a zero value effectively mean the same thing. True or false? 1 point True False 4. Question 4 Select all that are true regarding wildcards (Select all that apply.) 1 point Wildcards at the end of search patterns take longer to run Wildcards can be used for non-text data items Wildcards take longer to run compared to a logical operator 5. Question 5 Select the statements below that ARE NOT true of the ORDER BY clause (select all that apply). 1 point It’s only applied to the column names it directly precedes Can take the name of one or more columns Can be anywhere in the select statement Cannot sort by a column not retrieved 6. Question 6 Select all of the valid math operators in SQL (select all that apply). 1 point + (addition) * (multiplication) – (subtraction) / (division) ^ (exponents) 7. Question 7 Which of the following is an aggregate function? (select all that apply) 1 point COUNT() DISTINCT() MIN() MAX() 8. Question 8 Which of the following is true of GROUP BY clauses? (Select all that apply.) 1 point Every column in your select statement may/can be present in a group by clause, except for aggregated calculations. GROUP BY clauses can contain multiple columns NULLs will be grouped together if your Group By column contains NULLs 9. Question 9 Select the true statement below. 1 point HAVING filters after the data is grouped. WHERE filters after the data is grouped 10. Question 10 Which is the correct order of occurrence in a SQL statement? 1 point select, from, where, group by, having select, from, where, order by, having select, group by, from, where, having select, having, where, group by
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2. Find all the invoices whose total is between $5 and $15 dollars. Select count (*) FROM Invoices where total>=5 and total<=15. While the query in this example is limited to 10 records, running the query correctly will indicate how many total records there are - enter that number below. 168.
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The code has been started for you, but you will -- need to program the fourth and fifth lines yourself before running the query. SELECT Job_Code, Pay_Type FROM salary_range_by_job_classification WHERE Job_Code LIKE '03%'; -- 6. Run a query to find the Effective Date (eff_date) or Salary End Date (sal_end_date) for grade Q90H0? The code has ...
Module 2 Coding Assignment • 45 minutes; Module 2 Practice Quiz ... You will also be able to apply fundamental principles when using SQL for data science. You'll be able to use tips and tricks to apply SQL in a data science context. What's included. 11 videos 3 readings 4 assignments 1 discussion prompt.
Download ZIP. SQL for Data Science. Week 2 Module 2 Coding Assignment. Raw. SQL for Data Science Module 2 Coding .txt. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Answer : 2. 2. Run Query: Find all the invoices whose total is between $5 and $15 dollars. Code: select InvoiceId, Total from Invoices where total between 5 and 15; While the query in this example is limited to 10 records, running the query correctly will indicate how many total records there are - enter that number below. Answer : 168.
The SQL for Data Science course is a four-module course created by the University of California-Darvis and offered by Coursera. This course is highly recommended for anyone that wants to learn and ...
Video: Grouping Data with SQL. Video: Putting it All Together. Reading: SQL for Various Data Science Languages. Graded: Module 2 Quiz. Graded: Module 2 Coding Assignment. #WEEK 3. Subqueries and Joins in SQL. In this module, you will be able to discuss subqueries, including their advantages and disadvantages, and when to use them.
SQL for Data science Module quiz 2 coding assignment answers#answers #assignment #courseraPlease Like This video 🙏😍And press subscribe button 😍
You will use case statements and concepts like data governance and profiling. You will discuss topics on data, and practice using real-world programming assignments. You will interpret the structure, meaning, and relationships in source data and use SQL as a professional to shape your data for targeted analysis purposes.
SQL For Data Science : Module 2 coding Assignment weak 2. In this Video I show You guys SQL For Data Science : Module 2 coding Assignment weak 2 Solutions.Su...
SQL for Data-science Coursera Assignment Answers You can find all the quizes and coding answers for the SQL for Data-science Course . Just give a try by yourself before going to the answers. Remember you can't learn until you do it by your own! Week 1 Quiz Answers. Week 1 Coding Answers. Week 2 Quiz Answers. Week 2 Coding Answers. Week 3 Quiz ...
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Accessing Databases using Python. Module 4 • 4 hours to complete. In this module you will learn the basic concepts of using Python to connect to databases. In a Jupyter Notebook, you will create tables, load data, query data using SQL magic and SQLite python library. You will also learn how to analyze data using Python.
Module 2 Coding Questions >> Week 1 >> SQL for Data Science. 1. Question 1 All of the questions in this quiz refer to the open source Chinook Database. Please familiarize yourself with the ER diagram to familiarize yourself with the table and column names to write accurate queries and get the appropriate answers.
Coursework, code, notes, and etc. from the SQL for Data Science course from University of California, Davis. - SQL-for-Data-Science/Module 2/Module2CodingAssignment.sql at master · kayleyseow/SQL-for-Data-Science
Module 2 Quiz TOTAL POINTS 10 1. Question 1 Filtering data is used to do which of the following? (select all that apply) 1 point Reduce the time it takes to run the query Helps you understand the contents of your data Narrows down the results of the data. Removes unwanted data in a calculation Reduces the strain on the client application 2.
SQL for Data Science - Module 4 Coding Assignment. Pull a list of customer ids with the customer's full name, and address, along with combining their city and country together. Be sure to make a space in between these two and make it UPPER CASE. (e.g. LOS ANGELES USA) Click the card to flip 👆. select customerid, firstname, lastname, address ...
There are 4 modules in this course. Data science is a dynamic and growing career field that demands knowledge and skills-based in SQL to be successful. This course is designed to provide you with a solid foundation in applying SQL skills to analyze data and solve real business problems. Whether you have successfully completed the other courses ...
Graded: Module 3 Quiz Graded: Module 3 Coding Assignment WEEK 4 - Modifying and Analyzing Data with SQL In this module, you will be able to discuss how to modify strings by concatenating, trimming, changing the case, and using the substring function. You will be able to discuss the date and time strings specifically. You will be able to use case statements and finish this module by discussing ...
Module 2 Coding Assignment ... You will also be able to apply fundamental principles when using SQL for data science. You'll be able to use tips and tricks to apply SQL in a data science context. What's included. 10 videos 3 readings 2 quizzes 1 peer review 1 discussion prompt.
6. Use a UNION to create a list of all the employee's and customer's first names and last names ordered by the last name in descending order. After running the query described above, determine what is the last name of the 6th record?