[Webinar] Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

retrieval request

Posted on 2011-03-13
2
Medium Priority
?
416 Views
Last Modified: 2012-06-27
For an unordered retrieval request, different executions of request may return the retrieved rows in a different sequence. I think this statement is true because the order of request is the key in row access in  database. Am i right? tks.
0
Comment
Question by:BeginToLearn
2 Comments
 
LVL 2

Accepted Solution

by:
preraksheth earned 2000 total points
ID: 35120360
True only conditionally. The sequence of rows fetched from the database are dependent on many things, including the natural order of storage, any joins made, and the plan used for execution.

So IF the data has not changed in any way (no insert, no delete, no updates), and IF the joins have not changed (same query executed again), then the row sequence WILL remain the same. In all other conditions, it is not guranteed.
0
 

Author Comment

by:BeginToLearn
ID: 35130757
tks
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Lotus Notes has been used since a very long time as an e-mail client and is very popular because of it's unmatched security. In this article we are going to learn about  RRV Bucket corruption and understand various methods to Fix "RRV Bucket Corrupt…
One of the most important things in an application is the query performance. This article intends to give you good tips to improve the performance of your queries.
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …
Despite its rising prevalence in the business world, "the cloud" is still misunderstood. Some companies still believe common misconceptions about lack of security in cloud solutions and many misuses of cloud storage options still occur every day. …
Suggested Courses

864 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question