What is a tuple in a relational database? MCQ with Answer and Explanation

Question
What is a tuple in a relational database?
A. A single row in a table
B. A single column in a table
C. A relationship between tables
D. The name of the table
Answer: Option A
Solution (By JKSSB Mock Tests)
In RDBMS, a tuple represents a single row or record in a relation (table).
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
Which SQL keyword is placed immediately inside a SELECT statement or an aggregate function to eliminate duplicate rows from the output?
A. SINGLE
B. UNIQUE
C. DISTINCT
D. DIFFERENT
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Correct Answer: Option C

Explanation:
The DISTINCT keyword is used to remove all duplicate values or records from the output of an SQL SELECT query.
This question belongs to: Computer Database Management System (DBMS)
Question #2
What does DDL stand for in SQL?
A. Data Definition Language
B. Data Description Language
C. Data Manipulation Language
D. Dynamic Data Link
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Correct Answer: Option A

Explanation:
DDL (Data Definition Language) includes commands like CREATE, ALTER, DROP for defining database structures.
This question belongs to: Computer Database Management System (DBMS)
Question #3
What is a synonym in database terms?
A. A foreign key
B. An alias for a table or view
C. A type of index
D. A data type
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Correct Answer: Option B

Explanation:
A synonym is an alternative name for a database object, allowing simpler references.
This question belongs to: Computer Database Management System (DBMS)
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