SQL (Structured Query Language) is the foundational language for managing and querying relational databases. This hand-picked MCQ quiz helps you strengthen your core SQL concepts such as data retrieval, table creation, filtering, and key commands.
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Which command is used to extract data from a database?
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Question 3 of 15
3. Question
What type of SQL command is INSERT?
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Question 4 of 15
4. Question
Which keyword is used to filter results in a SELECT query?
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Question 5 of 15
5. Question
Which SQL command is used to remove a table permanently?
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Question 6 of 15
6. Question
Which clause is used to sort results in ascending or descending order?
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Question 7 of 15
7. Question
Which command is used to change data in existing rows?
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Question 8 of 15
8. Question
What is the default sorting order of the ORDER BY clause?
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Question 9 of 15
9. Question
What is the use of the DISTINCT keyword in SQL?
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Question 10 of 15
10. Question
Which of these is a valid constraint in SQL?
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Question 11 of 15
11. Question
Which clause is used to group data in SQL?
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Question 12 of 15
12. Question
What is the purpose of the HAVING clause?
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Question 13 of 15
13. Question
Which command is used to create a new table in SQL?
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Question 14 of 15
14. Question
Which of the following is NOT a valid SQL data type?
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Question 15 of 15
15. Question
Which of the following keys can have duplicate values in a table?
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Summary
This quiz provides foundational knowledge on SQL commands, clauses, constraints, and data types, ensuring learners can confidently write and understand basic SQL queries. Ideal for job prep, academic exams, and real-world database usage.
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