[x]
Posted via EE Mobile

Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.

Question
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

9.1

How Can I Construct One to One Relationship - RDBMS Design

Asked by F-J-K in Databases Miscellaneous, PL / SQL

Tags: sql design db database rdbms normalization oracle

Assume i have Customer Table with following attributes:

{CustomerID (primary key), first name, last name, address, city, country,  postal code}

Customer Private Information Table attributes:

{CustomerID (foreign key), first name, last name, address, city, country,  postal code}

Do the two tables have one to one relationship?
They share same primary key. CustomerID in Customer Private Info is foreign key that references to CustomerID in Customer Table.

If yes, then how can i differentiate it with one-to-many relationship? Is it by doing the following, the relationship will be one to many:

Customer Table with following attributes:

{CustomerID (primary key), first name, last name, address, city, country,  postal code}

Customer Private Information Table attributes:

{CustomerPrivateInfoID (primary key), CustomerID (foreign key), first name, last name, address, city, country,  postal code}
 
Related Solutions
Keywords: How Can I Construct One to One Relati…
 
Loading Advertisement...
 
[+][-]08/08/09 08:45 PM, ID: 25052723Accepted Solution

View this solution now by starting your 30-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

About this solution

Zones: Databases Miscellaneous, PL / SQL
Tags: sql design db database rdbms normalization oracle
Sign Up Now!
Solution Provided By: FarzadA
Participating Experts: 3
Solution Grade: A
 
[+][-]08/09/09 04:39 AM, ID: 25053808Assisted Solution

Assisted solutions are selected by the member who asked the question as a comment that contributed to their question's solution.

Start your 30-day free trial to view this Assisted Solution or ask the Experts your question.

 
[+][-]08/09/09 12:59 PM, ID: 25055688Assisted Solution

Assisted solutions are selected by the member who asked the question as a comment that contributed to their question's solution.

Start your 30-day free trial to view this Assisted Solution or ask the Experts your question.

 
 
Loading Advertisement...
20091021-EE-VQP-81 - Hierarchy / EE_QW_3_20080625