50 questions · 60 minutes · SQL
SQL Final Quiz 3 practice quiz
50 easy MCQs on: tables & columns, constraints (PK/FK/CHECK/NOT NULL/UNIQUE), indexes, DML, transactions, SELECT, WHERE with wildcards, set operators (UNION/INTERSECT/EXCEPT), CASE/NULLs, aggregates (SUM/AVG/COUNT/MAX/MIN), GROUP BY/HAVING, and subqueries.
Before you start
Answer all 50 questions. 1 mark each. No negative marking.
You can take this without an account and you will still get the full marked review. Only signed-in attempts are saved — sign in first if you want this one kept in your history.
- Questions
- 50
- Time
- 60 minutes
- Marks
- 50
- Subject
- SQL
- Marking
- Server-side
What it asks
The first few questions
- Which SQL command is used to create a new table?
- Which keyword defines the table’s unique identifier?
- A FOREIGN KEY is used to:
- Which constraint blocks NULL values in a column?
46 more once you begin. Options are withheld until the attempt starts — the answer key never reaches the browser before you have been marked.