Quiz

Quiz: Relational Databases and SQL

OCR H446 Computer Science Specification

11 Steps9 Questions

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Building on what you've learned about data exchange, let's test your knowledge of relational databases and SQL!

Multiple ChoiceInteractive

What is the main purpose of a relational database?

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Multi-SelectInteractive

Which of the following are advantages of using relational databases? (Select all that apply)

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Fill in the BlankInteractive

In a relational database, a {{blank0}} key uniquely identifies a record in a table, while a {{blank1}} key links to a record in another table.

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MatchingInteractive

Match the items on the left with their correct pairs on the right

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Math EquationInteractive

If a database table has 5 rows and 3 columns, how many cells does the table have?

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Code CompletionInteractive

Match the items on the left with their correct pairs on the right

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Multiple ChoiceInteractive

What does the SQL clause 'WHERE' do?

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Multi-SelectInteractive

Which of these are valid SQL keywords? (Select all that apply)

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typedAnswer

Match the items on the left with their correct pairs on the right

Fill in the BlankInteractive

In SQL, the {{blank0}} command is used to create a new table, and the {{blank1}} command is used to remove a table.

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