Practice Functions Of Database Packages (5.4) - Database Packages

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9 questions

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6 sample questions

Question 1.
What is a database table?
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Think of it like a spreadsheet.
Question 2.
What does the primary key in a table do?
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Consider its role in distinguishing entries.
3Question 3.
What is the primary purpose of creating tables in a database?
- To display data
- To store data
- To delete data
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Consider what a table physically represents.
4Question 4.
True or False: A primary key allows duplicate records in a database table.
- True
- False
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Think about the role of unique identification.
Question 5.
You have a database with tables for customers, orders, and products. Describe how you would generate a report showing total sales per product category for the last month.
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Consider using aggregate functions in your query.
Question 6.
After modifying a database's structure, a user finds that some relationships between tables have broken. How would you approach fixing this issue?
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Think of how tables are linked together!

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