CBSE Class 12 Sample Paper for 2023 Boards

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Solutions to CBSE Sample Paper - Computer Science Class 12

Question 7 [Fill in the blanks] - CBSE Class 12 Sample Paper for 2023 Boards - Solutions to CBSE Sample Paper - Computer Science Class 12

Last updated at April 16, 2024 by

Fill in the blank:

______ command is used to remove primary key from the table in SQL.

(a) update

(b) remove

(c) alter

(d) drop

 

Answer:

The alter table command is used to remove the primary key from a table in SQL.

Syntax to remove the primary key:

ALTER TABLE table_name DROP PRIMARY KEY ;

So, the correct answer is (c).

 

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo