Tip

Criteria for a data warehouse DBMS selection

Given the state of maturity of the data warehouse industry, you would think that all data warehouse platform decisions have already been made and that they've been made for good. You'd be wrong. Data warehouse platform/DBMS decisions are still being made due to:

  1. Non-producing data warehouse efforts that require zero-based planning
  2. Late data warehouse adopters
  3. Data warehouses hitting the scalability limitations of their initially chosen platforms

If you're in one of these shops, the following applies to you.

The data warehouse DBMS selection is critical and acts as a catalyst for all other technology decisions in a data warehouse environment. The technology needs to support both the immediate as well as future, unspecified and unknown requirements. Ideally the DBMS selection should be the first technology decision made for a data warehouse project and it should be:

  • Scaleable -- In both performance capacity and incremental data volume growth. Make sure the proposed solution scales in a near-linear fashion and behaves consistently with growth in all of database size, number of concurrent users and complexity of queries. Understand additional hardware and software required for each of the incremental uses.
  • Powerful -- Designed for complex decision support activity in a multi-user mixed workload environment. Check on the maturity of the optimizer for supporting every type of

    Requires Free Membership to View

  • query with good performance and determine the best execution plan based on changing data demographics. Check on conditional parallelism and what the causes are of variations in the parallelism deployed. Check on dynamic and controllable prioritization of resources for queries.
  • Manageable -- Through minimal support tasks requiring DBA/System Administrator intervention. It should provide a single point of control to simplify system administration. You should be able to create and implement new tables and indexes at will.

I'll have 6 more criteria in the next tip.

For more information, check out SearchCRM's Best Web Links on Data Warehousing.


This was first published in August 2002

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

Disclaimer: Our Tips Exchange is a forum for you to share technical advice and expertise with your peers and to learn from other enterprise IT professionals. TechTarget provides the infrastructure to facilitate this sharing of information. However, we cannot guarantee the accuracy or validity of the material submitted. You agree that your use of the Ask The Expert services and your reliance on any questions, answers, information or other materials received through this Web site is at your own risk.