The State of the OBIEE11g World as of May 2014

Monday, May 12th, 2014 by

I’m conscious I’ve posted a lot on this blog over the past few months about hot new topics like big data, Hadoop and Oracle Advanced Analytics, and not so much about OBIEE, which traditionally has been the core of Rittman Mead’s business and what we’ve written about most historically. Part of this is because there’s […]

TimesTen and OBIEE port conflicts on Exalytics

Tuesday, July 23rd, 2013 by

Introduction Whilst helping a customer set up their Exalytics server the other day I hit an interesting problem. Not interesting as in hey-this-will-cure-cancer, or oooh-big-data-buzzword interesting, or even interesting as in someone-has-had-a-baby, but nonetheless, interesting if you like learning about the internals of the Exalytics stack. The installation we were doing was multiple non-production environments […]

Incremental refresh of Exalytics aggregates using native BI Server capabilities

Monday, April 8th, 2013 by

One of the key design features of the Exalytics In-Memory Machine 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, and when the underlying data changes they must be rebuilt from scratch. For OBIEE (Exalytics or not) […]

Incremental refresh of Exalytics Aggregates using TimesTen

Thursday, January 10th, 2013 by

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 when considering how to build and maintain these aggregates in TimesTen […]

Alternatives to the Summary Advisor for Refreshing Exalytics Aggregates

Saturday, September 29th, 2012 by

One of the several elements of Exalytics’ power comes from it holding pre-calculated (aggregated) data in the TimesTen for Exalytics In-Memory Database. Exalytics comes with a tool called the Summary Advisor (which Mark Rittman has written about previously here) which suggests aggregates to build based on the reports which have been run on the system. […]

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