Assuming B, and C are all nullable, which of the following set constraints can be deduced from the following production? A BC Check all that apply. Exactly five of them are correct. First(A) S First(B) First(A) S First(C) First(B) C First(A) First(B) S First(C) First(C) C First(A) First(C) C First(B) Follow(A) S Follow(B) Follow(A) S Follow(C) Follow(B) S Follow(A) Follow(B) S Follow(C) Follow(C) S Follow(A) Follow(C) S Follow(B) First(B) C Follow(C) First(C) Follow(B) Follow(B) C First(C) Follow(C) C First(B)
Assuming B, and C are all nullable, which of the following set constraints can be deduced from the following production? A BC Check all that apply. Exactly five of them are correct. First(A) S First(B) First(A) S First(C) First(B) C First(A) First(B) S First(C) First(C) C First(A) First(C) C First(B) Follow(A) S Follow(B) Follow(A) S Follow(C) Follow(B) S Follow(A) Follow(B) S Follow(C) Follow(C) S Follow(A) Follow(C) S Follow(B) First(B) C Follow(C) First(C) Follow(B) Follow(B) C First(C) Follow(C) C First(B)
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Can you please answer the question in the provided image? Thank you!
![Assuming B, and C are all nullable, which of the following set constraints can be deduced from the following production?
A → BC
Check all that apply. Exactly five of them are correct.
- [ ] First(A) ⊆ First(B)
- [ ] First(A) ⊆ First(C)
- [ ] First(B) ⊆ First(A)
- [ ] First(B) ⊆ First(C)
- [ ] First(C) ⊆ First(A)
- [ ] First(C) ⊆ First(B)
- [ ] Follow(A) ⊆ Follow(B)
- [ ] Follow(A) ⊆ Follow(C)
- [ ] Follow(B) ⊆ Follow(A)
- [ ] Follow(B) ⊆ Follow(C)
- [ ] Follow(C) ⊆ Follow(A)
- [ ] Follow(C) ⊆ Follow(B)
- [ ] First(B) ⊆ Follow(C)
- [ ] First(C) ⊆ Follow(B)
- [ ] Follow(C) ⊆ First(C)
- [ ] Follow(C) ⊆ First(B)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff4c821d6-5727-4cc3-a0b7-8adbec46eaa2%2Fc7acd5f1-3e92-4645-ae0d-8888d673b898%2Fxjmb0fk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Assuming B, and C are all nullable, which of the following set constraints can be deduced from the following production?
A → BC
Check all that apply. Exactly five of them are correct.
- [ ] First(A) ⊆ First(B)
- [ ] First(A) ⊆ First(C)
- [ ] First(B) ⊆ First(A)
- [ ] First(B) ⊆ First(C)
- [ ] First(C) ⊆ First(A)
- [ ] First(C) ⊆ First(B)
- [ ] Follow(A) ⊆ Follow(B)
- [ ] Follow(A) ⊆ Follow(C)
- [ ] Follow(B) ⊆ Follow(A)
- [ ] Follow(B) ⊆ Follow(C)
- [ ] Follow(C) ⊆ Follow(A)
- [ ] Follow(C) ⊆ Follow(B)
- [ ] First(B) ⊆ Follow(C)
- [ ] First(C) ⊆ Follow(B)
- [ ] Follow(C) ⊆ First(C)
- [ ] Follow(C) ⊆ First(B)
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