Database Systems: Design, Implementation, & Management
11th Edition
ISBN: 9781285196145
Author: Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher: Cengage Learning
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Chapter 9, Problem 5RQ
Explanation of Solution
Distinction between the centralized and decentralized conceptual
- Centralized and decentralized designs greatly vary based on the approach they use, the approach could be bottom up and top down approach.
The following are the difference between the centralized and decentralized conceptual database design:
| Centralized database design | Decentralized database design |
| This type of database design is suited for small organization. | This type of database design is well suited for the organizations whose operations are spread at multiple operational sites. |
| They have relatively small and simple databases with entire view can be identified easily. | They have database which contains multiple entities that are subjected to have a complex relations between them... |
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I need help to solve a simple problem using Grover’s algorithm, where the solution is not necessarily known beforehand. The problem is a 2×2 binary sudoku with two rules:
• No column may contain the same value twice.
• No row may contain the same value twice.
Each square in the sudoku is assigned to a variable as follows:
We want to design a quantum circuit that outputs a valid solution to this sudoku. While using Grover’s algorithm for this task is not necessarily practical, the goal is to demonstrate how classical decision problems can be converted into oracles for Grover’s algorithm.
Turning the Problem into a Circuit
To solve this, an oracle needs to be created that helps identify valid solutions. The first step is to construct a classical function within a quantum circuit that checks whether a given state satisfies the sudoku rules.
Since we need to check both columns and rows, there are four conditions to verify:
v0 ≠ v1 # Check top row
v2 ≠ v3 # Check bottom row…
1
Vo V₁
V3
V₂ V₂
2
1
Vo V₁
V3
V₂ V₂
2
Chapter 9 Solutions
Database Systems: Design, Implementation, & Management
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