Practice Summary (12.6) - SQL for QA Analysts

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9 questions

Flashcard drill
3 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
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What SQL command do you use to retrieve data from a database?
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It's the first step in querying data.
Question 2.
What does the WHERE clause do?
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Think of it as a way to narrow down your results.
3Question 3.
What does the SELECT statement do in SQL?
- Updates data
- Retrieves data
- Deletes data
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Consider the purpose of querying.
4Question 4.
The WHERE clause is used to filter data based on conditions. True or False?
- True
- False
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Think of it as applying a filter to your query.
Question 5.
Write a SQL query to display the total number of orders and the average order price.
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Combine counting and averaging.
Question 6.
How would you use GROUP BY to find duplicate email entries in the users table?
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Think about identifying repeated entries.

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