[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.

03/26/2009 at 06:00AM PDT, ID: 24267045
[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

PostgreSQL Self Join

Asked by jpadkins49 in PostgreSQL Database, WebApplications

All I have a table in a postgre database that I have inherited that contains records that self join. It is a heirarchy tree for supervisors and employees.
The sample table layout is below:
tree_id   Parent_id  Object_id
1             0               349
1             349           346
1             346            355

The parent_id column is exactly how it sounds. It is the parent of the employee(e.g. manager). The object id is the employee number from the employees table. I need to write a self join query that pulls the heirarchy of the currently employee. For instance if I search by object_id=355, then it will pull all relations up to parent id of zero. So it will pull 346 and 349 from the database also. If you have a parent id of 0, then you are at the top of the heirarchy for that department. I am using this for a mailing notification feature for a leave module that I have developed, but I am unsure on how to get the data that I need via sql. I am not exactly sure I can even pull the data that I need via SQL. Any help will be greatly appreciated.
[+][-]03/26/09 10:04 AM, ID: 23992686

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: PostgreSQL Database, WebApplications
Sign Up Now!
Solution Provided By: earthman2
Participating Experts: 2
Solution Grade: A
 
 
[+][-]03/26/09 07:32 AM, ID: 23990801

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

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

 
[+][-]03/28/09 10:12 AM, ID: 24009299

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

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

 
 
Loading Advertisement...
20091028-EE-VQP-86 - Hierarchy / EE_QW_3_20080625