What is the purpose of a trigger in a database? MCQ with Answer and Explanation

Question
What is the purpose of a trigger in a database?
A. To create a backup
B. To automatically execute a set of actions in response to certain events on a table
C. To index a column
D. To join tables
Answer: Option B
Solution (By JKSSB Mock Tests)
A trigger is a stored program that automatically runs when a specified event (INSERT, UPDATE, DELETE) occurs on a table.
This question belongs to: Computer Database Management System (DBMS)
Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Database Management System (DBMS) Questions

Question #1
What kind of lock allows multiple concurrent transactions to read a database row simultaneously but blocks any transaction from writing to it?
A. Shared Lock
B. Deadlock
C. Exclusive Lock
D. Intent Lock
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
A Shared Lock (S-lock) permits concurrent transactions to read a resource but prevents any modification operations until the lock is released.
This question belongs to: Computer Database Management System (DBMS)
Question #2
Which of the following is a valid SQL string function?
A. SUBSTRING
B. All of the above
C. CONCAT
D. REPLACE
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
SUBSTRING, CONCAT, and REPLACE are common string functions in SQL.
This question belongs to: Computer Database Management System (DBMS)
Question #3
Which of the following describes a precompiled collection of SQL statements stored on the database server that can be executed repeatedly by name?
A. Cursor
B. Stored Procedure
C. Trigger
D. View
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
A Stored Procedure is a precompiled group of SQL statements and optional control-of-flow code stored in the database server, enhancing execution speed and security.
This question belongs to: Computer Database Management System (DBMS)
Explore All Database Management System (DBMS) MCQs
Today's Top Topics
Cyber Security 269 Database Management System (DBMS) 278 Computer Abbreviations 369 Computer Fundamentals 326 Computer Software 347
Explore Subjects
Accountancy and Statistics 3179 Economy GK 2220 English 15164 Computer 5279 Current Affairs 575
Practice Mix
Which of the following is an indirect tax in India?
The valve between the left atrium and left ventricle is the:
A person faces north. He turns 45° left, then 90° right, then 45° left. Which direction is he facing?
Under the Income Tax Act, the 'TDS' on the sale of an immovable property (other than agricultural land) by a resident is governed by which section, and what is the rate?
In 'Piecemeal Distribution' during dissolution, the first priority for payment of outside liabilities is: