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In an entity relationship, y is a dominant entity and x is a subordinate entity. Which of the following is correct?
- a)Operationally, if y is deleted, so is x.
- b)Entity x is existence dependent on y.
- c)Operationally, x is deleted on y.
- d)Operationally, if x is deleted, y remains the same.
Correct answer is option 'B'. Can you explain this answer?
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In an entity relationship, y is a dominant entity and x is a subordina...
An entity is said to be existent dependent if the existence of an entity depends on the existence of another entity. If y is the dominant entity and x is the subordinate entity, then x is said to be existence dependent on y.
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In an entity relationship, y is a dominant entity and x is a subordina...
Explanation:
Entity relationship in a database represents the relationship between entities. In this scenario, entity y is the dominant entity, and entity x is the subordinate entity.
Entity x is existence dependent on y because:
- Existence Dependency: Entity x cannot exist without entity y. This means that if entity y is deleted, entity x will also need to be deleted because it relies on the existence of entity y.
- Operational Impact: When entity y is deleted, it will trigger a cascade deletion of entity x to maintain data integrity and consistency within the database.
- Relationship Understanding: This relationship signifies that entity x is a child entity of entity y, and its existence is directly tied to the existence of entity y.
Overall, the correct option is 'B' because entity x is indeed existence dependent on entity y in this entity relationship model.
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In an entity relationship, y is a dominant entity and x is a subordinate entity. Which of the following is correct?a)Operationally, if y is deleted, so is x.b)Entity x is existence dependent on y.c)Operationally, x is deleted on y.d)Operationally, if x is deleted, y remains the same.Correct answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 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 In an entity relationship, y is a dominant entity and x is a subordinate entity. Which of the following is correct?a)Operationally, if y is deleted, so is x.b)Entity x is existence dependent on y.c)Operationally, x is deleted on y.d)Operationally, if x is deleted, y remains the same.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an entity relationship, y is a dominant entity and x is a subordinate entity. Which of the following is correct?a)Operationally, if y is deleted, so is x.b)Entity x is existence dependent on y.c)Operationally, x is deleted on y.d)Operationally, if x is deleted, y remains the same.Correct answer is option 'B'. Can you explain this answer?.
In an entity relationship, y is a dominant entity and x is a subordinate entity. Which of the following is correct?a)Operationally, if y is deleted, so is x.b)Entity x is existence dependent on y.c)Operationally, x is deleted on y.d)Operationally, if x is deleted, y remains the same.Correct answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 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 In an entity relationship, y is a dominant entity and x is a subordinate entity. Which of the following is correct?a)Operationally, if y is deleted, so is x.b)Entity x is existence dependent on y.c)Operationally, x is deleted on y.d)Operationally, if x is deleted, y remains the same.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an entity relationship, y is a dominant entity and x is a subordinate entity. Which of the following is correct?a)Operationally, if y is deleted, so is x.b)Entity x is existence dependent on y.c)Operationally, x is deleted on y.d)Operationally, if x is deleted, y remains the same.Correct answer is option 'B'. Can you explain this answer?.
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