BUZZO

Grade 10 · Computing

Computing quiz for grade 10: Databases and SQL

This quiz helps revise “Databases and SQL” in Computing for grade 10. It has 25 questions in five categories: Database Structure, Reading Data, Filtering Data, Changing Data, Links and Summaries. Questions get harder as the points go up, from 100 to 500.

  • For ages 15–16
  • 25 questions · 5 categories

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Buzzo quiz: Databases and SQL

A peek at the questions

The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.

Database Structure

  1. 100

    What is a vertical field in a relation that stores one named property across many records called?

  2. 200Picture for the question

    Which common SQL data type is used for whole numbers?

  3. 300

    Which common SQL data…

    In the game
  4. 400

    Which constraint uniquely identifies…

    In the game
  5. 500

    Which constraint links a…

    In the game

Reading Data

  1. 100Picture for the question

    Which keyword begins a query that returns chosen fields?

  2. 200

    Which symbol in a query's result list requests every field?

  3. 300

    Which keyword removes duplicate…

    In the game
  4. 400

    Which clause arranges query…

    In the game
  5. 500

    Which keyword makes sorting…

    In the game

Filtering Data

  1. 100

    Which clause keeps only records for which a condition is true?

  2. 200

    Which comparison operator tests whether two expressions have exactly the same value?

  3. 300

    Which SQL operator checks…

    In the game
  4. 400

    Which operator tests whether…

    In the game
  5. 500

    Which SQL test checks…

    In the game

Changing Data

  1. 100

    Which statement adds new records to an existing relation?

  2. 200Picture for the question

    Which statement changes field values in existing records?

  3. 300

    Which statement removes records…

    In the game
  4. 400

    Which statement creates a…

    In the game
  5. 500

    Which statement changes the…

    In the game

Links and Summaries

  1. 100Picture for the question

    Which aggregate function returns the number of records in a set?

  2. 200

    Which aggregate function returns the arithmetic mean of numeric values?

  3. 300

    Which operation combines matching…

    In the game
  4. 400

    Which clause partitions records…

    In the game
  5. 500

    Which clause filters aggregated…

    In the game

Play this quiz

All 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.

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How it works

  1. Pick a quiz and press “Play”.
  2. Send students or friends the link — they join from a phone or a computer.
  3. Choose questions on the board, buzz in first and collect points.

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