Database Management Systems (DBMS)
What is the function or purpose of SQL JOIN?
Difficulty: Medium
About this MCQ
This Medium Database Management Systems (DBMS) MCQ checks one syllabus fact.
The question is: “What is the function or purpose of SQL JOIN?”
The accepted answer is D. An SQL operation that combines rows from two or more tables based on a related column.. An SQL operation that combines rows from two or more tables based on a related column is the fact required by What is the function or purpose of SQL JOIN option D Option A A database structure that improves the speed of data retrieval operations on a table does not match the stem it is a near-miss used to catch incomplete recall of An SQL operation that combines rows from two or more tables based on a related column Option B A minimal set of attributes that can uniquely identify a record in a table does not match the stem it is a near-miss used to catch incomplete recall of An SQL operation that combines rows from two or more.
- A. A database structure that improves the speed of data retrieval operations on a table.
Why not A: “A database structure that improves the speed of data retrieval operations on a table.” is not correct. The accepted answer is D. An SQL operation that combines rows from two or more tables based on a related column.. An SQL operation that combines rows from two or more tables based on a related column is the fact required by What is the function or purpose of SQL JOIN option D Option A A databa
- B. A minimal set of attributes that can uniquely identify a record in a table.
Why not B: “A minimal set of attributes that can uniquely identify a record in a table.” is not correct. The accepted answer is D. An SQL operation that combines rows from two or more tables based on a related column.. An SQL operation that combines rows from two or more tables based on a related column is the fact required by What is the function or purpose of SQL JOIN option D Option A A databa
- C. The process of organizing database tables to reduce data redundancy and improve data integrity.
Why not C: “The process of organizing database tables to reduce data redundancy and improve data integrity.” is not correct. The accepted answer is D. An SQL operation that combines rows from two or more tables based on a related column.. An SQL operation that combines rows from two or more tables based on a related column is the fact required by What is the function or purpose of SQL JOIN option D Option A A databa
- D. An SQL operation that combines rows from two or more tables based on a related column. ✓
Correct answer
D. An SQL operation that combines rows from two or more tables based on a related column.
Explanation
An SQL operation that combines rows from two or more tables based on a related column is the fact required by What is the function or purpose of SQL JOIN option D Option A A database structure that improves the speed of data retrieval operations on a table does not match the stem it is a near-miss used to catch incomplete recall of An SQL operation that combines rows from two or more tables based on a related column Option B A minimal set of attributes that can uniquely identify a record in a table does not match the stem it is a near-miss used to catch incomplete recall of An SQL operation that combines rows from two or more.
Source: Database Management Systems (DBMS) Official Reference Guide
Tags: computer science, dbms, SQL, databases
Submitted by: MCQsHub Editorial
Related MCQs
- Choose the correct description of ACID properties.
- Identify the correct definition of Database index.
- A set of properties (Atomicity, Consistency, Isolation, Durability) that guarantee reliable database transacti...
- What term describes the following? a sequence of one or more database operations executed as a single logical...
- Normalization is best defined as which of the following?
- In computer science, Transaction refers to which of the following?