Submitted by tutorialcorner1012 on Wed, 2016-04-13 12:56
Dimensions are often recycled for multiple purposes within the same database. For instance, a “Date” dimension can be used for “Date of Sale”, as well as “Date of Delivery”, or “Date of Hire”. This is often referred to as a “role-playing dimension”.
Submitted by John Watson on Sun, 2013-09-08 03:52
The inverted table format can deliver fast and flexible query capabilities, but is not widely used. ADABAS is probably the most successful implementation, but how often do you see that nowadays? Following is a description of how to implement inverted structures within a relational database. All code run on Oracle Database 12c, release 184.108.40.206.
Submitted by subrata.dass on Tue, 2011-08-23 04:42
Submitted by AshishRaj on Sat, 2011-04-16 23:17
Submitted by Kevin Meade on Sat, 2009-09-26 23:34
Star Schemas are proliferating with warehouses these days. Many practitioners I have met in this space are a bit new to the concept of star schemas and as such keep falling back to old habits. But this is only hurting them. So I'll try to give my simplistic view of how it works in the hopes of granting some clarity on the practice of Star Modeling and overcoming our previous training to resist its concepts.
Submitted by devangdshah on Tue, 2008-02-12 16:58
There are various Oracle Warehouse Builder related routine tasks which I came across in my projects. So I feel that a write up on this will help Warehouse Builder Developer and Administrator across the word. Let handle OWB related task or questions one by one.
Automatic Back Up of OWB Project or Module or Mapping
I often come across the question like how can I back my work (mappings or oracle module or a project as a whole) daily? And automate the same. Like daily around 6:00pm i.e. before leaving from the office for the day, I should be having back up of my work.
Submitted by venurani on Sun, 2007-09-02 23:59
Partitioning is one of the most sought after options for data warehousing. Almost all Oracle data warehouses use partitioning to improve the performance of queries and also to ease the day-to-day maintenance complexities. Starting with 11G, more partitioning options have been provided and these should reduce the burden of the DBA to a great extent.
Submitted by rleishman on Wed, 2007-06-06 03:01
Aside from a nine month excursion to Sybase IQ, I've spent my entire career working with Oracle, so I don't profess too much expertise - indeed any! - about other RDBMS technologies. So in a weak attempt at self-education, I recently accepted an invitation to listen to a Teradata presentation directed at application developers.
Submitted by Mark Rittman on Sun, 2005-09-04 19:01
In this article Mark explais how one can drill from a "Discoverer for OLAP worksheet" to a "Discoverer Plus Relational worksheet" using Discoverer 10.1.2.
Submitted by Mark Rittman on Sat, 2005-08-27 01:00
"I have a question about drilling from an OracleBI Discoverer for OLAP 10.1.2 worksheet to a Discoverer Plus Relational worksheet. When you pass values from an OLAP worksheet you pass either the dimension name or the dimension value to the associated parameter in the relational worksheet. Obviously, in OLAP this dimension is treated as an object, and we have no idea which level the user may have picked before he drills out. On the other hand, in the relational world, each level of the dimension would be split out as a separate parameter. Could you run through a simple example where you drill from an OLAP worksheet to a relational worksheet and show how this is done?"