Which of the following is a non-aggregate function in SQL? MCQ with Answer and Explanation

Question
Which of the following is a non-aggregate function in SQL?
A. LENGTH()
B. AVG()
C. SUM()
D. COUNT()
Answer: Option A
Solution (By JKSSB Mock Tests)
LENGTH() (or LEN()) is a string function that returns the length of a string, not an aggregate. SUM, COUNT, AVG are aggregates.
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
Which database structure is created to drastically speed up the retrieval of rows from a table at the expense of slower data updates?
A. Constraint
B. Schema
C. View
D. Index
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option D

Explanation:
An Index is a performance optimization structure created on table columns to search and locate matching rows quickly without performing a full table scan.
This question belongs to: Computer Database Management System (DBMS)
Question #2
What is the difference between a database and a database management system?
A. Database is a file; DBMS is a table
B. DBMS is the data; database is the software
C. They are the same
D. A database is the data; DBMS is the software that manages it
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option D

Explanation:
A database is a collection of structured data, while a DBMS is the software used to interact with and manage that data.
This question belongs to: Computer Database Management System (DBMS)
Question #3
What is an attribute called when it can hold more than one value for a single entity instance, such as multiple phone numbers for a person?
A. Complex Attribute
B. Derived Attribute
C. Composite Attribute
D. Multi-valued Attribute
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option D

Explanation:
A Multi-valued Attribute is an attribute that can store multiple distinct values for a single entity instance (e.g., skill_set, phone_numbers).
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: