Structured Query Language (SQL) — Class 12 MCQs with Answers
Class 12 CBSE Computer Science · Chapter 11
30 practice questions · 30 Medium · Updated
Jump to the 2 solved questions
Practise the most important Class 12 CBSE Computer Science questions from Chapter 11, "Structured Query Language (SQL)". You get 3 timed quizzes made from 30 NCERT-based MCQs, with answers and explanations. The questions are split into 30 Medium. Warm up on the basics, then move on to the exam-level questions that top scorers in CBSE Board exams get right.
To score well in "Structured Query Language (SQL)", focus on logic, syntax and computational thinking. Each MCQ here is timed and uses exam-style marking (+4 correct, −1 wrong, 0 skipped). This helps you stay accurate when time is short, just as real papers need. Every question has a short explanation, so a wrong answer becomes a quick lesson. It is the fastest way to fix gaps before a test.
Use this chapter for focused revision. Start with the Easy set to check your basics on Structured Query Language (SQL), then move to Medium to practise applying them. Your accuracy, streaks and XP save automatically. This chapter also adds to your overall Class 12 Computer Science mastery score. Try the 2 sample questions below: tap an option to see the answer and a worked explanation. Sign in free to start practising.
Structured Query Language (SQL) — important questions & MCQs with answers (Class 12 Computer Science)
2 solved questions from this chapter's difficulty levels, each with its answer and explanation. Tap an option to check yourself.
0 of 2 answered
- Q1 of 2Medium
SELECT COUNT(*) FROM STUDENT returns:
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Answer: 6
Explanation: COUNT with a star counts every row of the table.
- Q2 of 2Medium
SELECT MAX(Marks) FROM STUDENT returns:
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Answer: 91
Explanation: MAX returns the largest value in the column, ignoring nulls.
Start this chapter free
You have 2 to try above. Sign in with Google (no card needed). You get 1 Easy + 1 Medium quiz on every chapter, free for good (up to 6 quizzes a day) — plus a free Hard quiz when you score 70%+ on a Medium quiz (1 per subject).
This chapter has 30 questions (30 Medium), with timed scoring and instant feedback. The rest unlock with the ₹1,999/year plan.
Start with the questions above. The full quiz opens here after.
Structured Query Language (SQL) — FAQs
What does Class 12 Computer Science Chapter 11 (Structured Query Language (SQL)) cover on XamBaaz?+
It has 30 NCERT-based MCQs on "Structured Query Language (SQL)": 30 Medium. Together they make 3 timed quizzes, and you never get the same set twice. Every question has an instant explanation. They help you prepare for CBSE Board exams.
Are these "Structured Query Language (SQL)" questions free to practise?+
Yes. Sign in with Google to practise "Structured Query Language (SQL)" free. Full unlimited access is ₹1,999/year. One year from the day you pay. Class 12 is your last school year, so your class stays as it is. No chapter is charged separately.
How should I revise "Structured Query Language (SQL)" for the exam?+
Start with the Easy quiz to check your basics, then try Medium to practise applying them. There are 3 timed quizzes on this chapter, so you can come back for a fresh set instead of one you have seen. Read each explanation, retry the questions you miss, and track your accuracy until it stays high.
Are these "Structured Query Language (SQL)" MCQs available with answers?+
Yes. 2 sample questions are on this page with answers: tap an option, or "Show answer", to see the correct option and a step-by-step explanation. Sign in free with Google to start practising, with instant scoring.
Is there negative marking in the "Structured Query Language (SQL)" quizzes?+
Yes. The timed quizzes use exam-style marking: +4 for a right answer, −1 for a wrong one and 0 for a skip. MHT-CET and CBSE board papers have no negative marking. Our mocks for those are scored their way.
What are the important questions from Structured Query Language (SQL) (Class 12 Computer Science)?+
This page shows 2 solved important MCQs with answers and explanations. Sign in to practise all 30 questions on the chapter as timed quizzes.
Is there an online quiz for Structured Query Language (SQL)?+
Yes — Class 12 Computer Science Structured Query Language (SQL) has timed online quizzes at Medium levels, with instant scoring and a worked explanation on every question. The first quiz on the chapter is free.
Are there question answers and extra questions for Structured Query Language (SQL) (Class 12 Computer Science)?+
Yes. This page has 2 solved questions on Structured Query Language (SQL), each with the correct answer and a short explanation. Sign in to practise all 30 questions on the chapter as timed quizzes.