Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > 8. Statement 1: A tuple is a row in a relatio...
Start Learning for Free
8. Statement 1: A tuple is a row in a relation
Statement 2: Existence of multiple foreign keys in the same relation is possible
Statement 2: Existence of multiple foreign keys in the same relation is possible
- a)Both the statements are true.
- b)Statement 1 is correct but statement 2 is false.
- c)Statement 1 is false but statement 2 is correct.
- d)Both the statements are false.
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
8. Statement 1: A tuple is a row in a relationStatement 2: Existence o...
A tuple is a row is a relation. There can exist multiple foreign keys in the same relation because there can exist multiple attributes in the relation that are primary keys in two or more other relations.
Most Upvoted Answer
8. Statement 1: A tuple is a row in a relationStatement 2: Existence o...
Statement 1: A tuple is a row in a relation
A tuple is a fundamental concept in relational database management systems (RDBMS). It represents a single record or row in a relation. In other words, a tuple is an instance or occurrence of a relation. Each tuple consists of a set of attributes or fields that describe the characteristics or properties of the entity being represented.
For example, consider a relation called "Students" which represents information about students in a school. Each tuple in the "Students" relation would represent a specific student and contain attributes such as student ID, name, age, and grade.
Therefore, Statement 1 is true. A tuple is indeed a row in a relation.
Statement 2: Existence of multiple foreign keys in the same relation is possible
In a relational database, a foreign key is a field or set of fields in a table that refers to the primary key of another table. It establishes a relationship between two tables, allowing data to be linked or connected between them.
It is possible for a relation to have multiple foreign keys. This occurs when there are multiple relationships between the same two tables or when a table has relationships with multiple other tables. In such cases, each foreign key represents a different relationship or connection.
For example, let's consider a scenario where we have two tables: "Employees" and "Departments". The "Employees" table has two foreign keys: "DepartmentID" and "ManagerID". The "DepartmentID" foreign key establishes a relationship between the "Employees" table and the "Departments" table based on the department each employee belongs to. The "ManagerID" foreign key establishes a relationship within the "Employees" table itself, indicating the manager of each employee.
Therefore, Statement 2 is also true. The existence of multiple foreign keys in the same relation is possible.
Conclusion
Both Statement 1 and Statement 2 are true. A tuple is a row in a relation, and it is possible to have multiple foreign keys in the same relation.
A tuple is a fundamental concept in relational database management systems (RDBMS). It represents a single record or row in a relation. In other words, a tuple is an instance or occurrence of a relation. Each tuple consists of a set of attributes or fields that describe the characteristics or properties of the entity being represented.
For example, consider a relation called "Students" which represents information about students in a school. Each tuple in the "Students" relation would represent a specific student and contain attributes such as student ID, name, age, and grade.
Therefore, Statement 1 is true. A tuple is indeed a row in a relation.
Statement 2: Existence of multiple foreign keys in the same relation is possible
In a relational database, a foreign key is a field or set of fields in a table that refers to the primary key of another table. It establishes a relationship between two tables, allowing data to be linked or connected between them.
It is possible for a relation to have multiple foreign keys. This occurs when there are multiple relationships between the same two tables or when a table has relationships with multiple other tables. In such cases, each foreign key represents a different relationship or connection.
For example, let's consider a scenario where we have two tables: "Employees" and "Departments". The "Employees" table has two foreign keys: "DepartmentID" and "ManagerID". The "DepartmentID" foreign key establishes a relationship between the "Employees" table and the "Departments" table based on the department each employee belongs to. The "ManagerID" foreign key establishes a relationship within the "Employees" table itself, indicating the manager of each employee.
Therefore, Statement 2 is also true. The existence of multiple foreign keys in the same relation is possible.
Conclusion
Both Statement 1 and Statement 2 are true. A tuple is a row in a relation, and it is possible to have multiple foreign keys in the same relation.
Attention Computer Science Engineering (CSE) Students!
To make sure you are not studying endlessly, EduRev has designed Computer Science Engineering (CSE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Computer Science Engineering (CSE).
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Similar Computer Science Engineering (CSE) Doubts
Top Courses for Computer Science Engineering (CSE)View all
8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer?
Question Description
8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer?.
8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer?.
Solutions for 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE).
Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice 8. Statement 1: A tuple is a row in a relationStatement 2: Existence of multiple foreign keys in the same relation is possiblea)Both the statements are true.b)Statement 1 is correct but statement 2 is false.c)Statement 1 is false but statement 2 is correct.d)Both the statements are false.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup