Plus Two / 12th Computer Science - Book Back Answers - Chapter 12 - English Medium
Tamil Nadu Board 12th Standard Computer Science - Chapter 12: Book Back Answers and Solutions
This post covers the book back answers and solutions for Chapter 12 from the Tamil Nadu State Board 12th Standard Computer Science textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.
We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.
By going through this material, you’ll gain a strong understanding of Chapter 12 along with the corresponding book back questions and answers (PDF format).
Question Types Covered:
- 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following
- 2 Mark Questions: Answer briefly
- 3, 4, and 5 Mark Questions: Answer in detail
All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.
All the best, Class 12 students! Prepare well and aim for top scores. Thank you!
Chapter 12: Structured Query Language (SQL)
I. Choose the correct answer.
1. Which commands provide definitions for creating table structure, deleting relations, and modifying relation schemas.
a. DDL
b. DML
c. DCL
d. DQL
Answer Key:
a. DDL
2. Which command lets to change the structure of the table?
a. SELECT
b. ORDER BY
c. MODIFY
d. ALTER
Answer Key:
d. ALTER
3. The command to delete a table including the structure is
a. DROP
b. DELETE
c. DELETE ALL
d. ALTER TABLE
Answer Key:
a. DROP
4. Queries can be generated using
a. SELECT
b. ORDER BY
c. MODIFY
d. ALTER
Answer Key:
a. SELECT
5. The clause used to sort data in a database
a. SORT BY
b. ORDER BY
c. GROUP BY
d. SELECT
Answer Key:
b. ORDER BY
a. DDL
b. DML
c. DCL
d. DQL
Answer Key:
a. DDL
2. Which command lets to change the structure of the table?
a. SELECT
b. ORDER BY
c. MODIFY
d. ALTER
Answer Key:
d. ALTER
3. The command to delete a table including the structure is
a. DROP
b. DELETE
c. DELETE ALL
d. ALTER TABLE
Answer Key:
a. DROP
4. Queries can be generated using
a. SELECT
b. ORDER BY
c. MODIFY
d. ALTER
Answer Key:
a. SELECT
5. The clause used to sort data in a database
a. SORT BY
b. ORDER BY
c. GROUP BY
d. SELECT
Answer Key:
b. ORDER BY
II.Answer the following questions.
12th Computer Science (soon)
III. Answer the following questions.
12th Computer Science (Soon)
IV. Answer the following questions.
12th Computer Science (Soon)
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