Practice Select – Retrieve Data (12.2.1) - SQL for QA Analysts - Quality Analysis

Practice: SELECT – Retrieve Data

Lesson 12.2.1SQL for QA Analysts

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10 questions

Flashcard drill
5 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What key SQL statement would you use to retrieve all columns from the 'products' table?
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Use the SELECT command to pull all columns.
Question 2.
Write a SQL query to fetch user names from the 'users' table.
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Focus on specifying the column you want to retrieve.
3Question 3.
What is the purpose of the SELECT statement in SQL?
- To modify records
- To delete data
- To retrieve data
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Think about what SQL commands are meant for data retrieval.
4Question 4.
True or False: The WHERE clause can be used to filter records based on conditions.
- True
- False
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Remember the role of WHERE in narrowing down SQL query results.
Question 5.
Write a SQL query that retrieves the top 5 users who have made the most orders, along with their total order amounts.
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Consider using COUNT and SUM functions along with GROUP BY for totals.
Question 6.
Construct a query that finds the average order value for all orders received in 2022, grouped by each month.
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Utilize the AVG function to calculate average values while filtering by year.

6 more questions in this section. Enroll free to practise them all.