Quiz: Relational Databases and SQL
OCR H446 Computer Science Specification
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Building on your knowledge of data handling, let's test your understanding of Relational Databases and SQL!
What is a relational database?
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Which of the following are characteristics of a relational database? (Select all that apply)
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A {{blank0}} is a unique identifier for a database record, while a {{blank1}} key is used to link records in different tables.
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Match the items on the left with their correct pairs on the right
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A table contains 12 rows and 4 columns. How many cells are in the table?
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Which SQL keyword is used to remove a record from a table?
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Which of the following are common SQL data types? (Select all that apply)
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The {{blank0}} command is used to create a new table in SQL. The {{blank1}} command is used to modify the structure of an existing table.
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Match the items on the left with their correct pairs on the right
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Match the items on the left with their correct pairs on the right
What is a foreign key used for in a relational database?
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