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aggregates

A collection of 3 posts

Oracle BI Suite EE

Testing aggregate navigation on OBIEE and Exalytics

One of OBIEE’s many great strengths is aggregate navigation; the ability to choose from a list of possible tables the one which will probably give the optimal performance for a given user query. Users are blissfully unaware of which particular table their query is being satisfied from, since aggregate

  • Robin Moffatt
Robin Moffatt May 18, 2013 • 5 min read
Technical

Incremental refresh of Exalytics aggregates using native BI Server capabilities

One of the key design features of the Exalytics In-Memory Machine [http://www.oracle.com/uk/solutions/ent-performance-bi/business-intelligence/exalytics-bi-machine/overview/index.html] is the use of aggregates (pre-calculated summary data), held in the TimesTen In-Memory database. Out of the box (“OotB”) these aggregates are built through the OBIEE tool,

  • Robin Moffatt
Robin Moffatt Apr 8, 2013 • 10 min read
Technical

Incremental refresh of Exalytics Aggregates using TimesTen

Introduction One of the key reasons that Exalytics can deliver sub-second response times is the use of TimesTen in-memory database to hold data pre-calculated to various levels of aggregation as required by the reports. Last year I wrote about Alternatives to the Summary Advisor [http://www.rittmanmead.com/blog/2012/

  • Robin Moffatt
Robin Moffatt Jan 10, 2013 • 12 min read
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