Comments on: Build a Data Warehouse using Ruby On Rails http://blog.gobansaor.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/ A country datasmith. Sat, 10 Jul 2010 14:04:14 +0000 hourly 1 http://wordpress.com/ By: Tom Gleeson http://blog.gobansaor.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-6001 Tom Gleeson Thu, 10 Jun 2010 08:51:26 +0000 http://gobansaor.wordpress.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-6001 Thanks Joe, Have added the wayback link to the main article. Tom Thanks Joe,

Have added the wayback link to the main article.

Tom

]]> By: Joe Harris http://blog.gobansaor.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-6000 Joe Harris Thu, 10 Jun 2010 07:51:09 +0000 http://gobansaor.wordpress.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-6000 Looks like the tutorial is missing from the current version of his blog but you can get it from the wayback machine >> http://web.archive.org/web/20070722230250/http://anthonyeden.com/2006/12/20/activewarehouse-example-with-rails-svn-logs Joe Looks like the tutorial is missing from the current version of his blog but you can get it from the wayback machine >>

http://web.archive.org/web/20070722230250/http://anthonyeden.com/2006/12/20/activewarehouse-example-with-rails-svn-logs

Joe

]]> By: gobansaor http://blog.gobansaor.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-3983 gobansaor Tue, 13 May 2008 10:40:01 +0000 http://gobansaor.wordpress.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-3983 Lal, I'd have to admit I never got off my a** to try it out either. As regards speed, not all relational warehouses need to be super-fast, ease of setup and maintenance (i.e. managing hierarchies and SCDs) may sometimes be as important. This is particularly true where the end-user front-end is via MOLAP (Essbase et. al.) with the relational star-schema being optimised for night-time cube loading. In that scenario,the day-time database is available for ETL loads and adhoc queries generated by IT staff (and others who may not mind high query latency). Tom Lal,

I’d have to admit I never got off my a** to try it out either.

As regards speed, not all relational warehouses need to be super-fast, ease of setup and maintenance (i.e. managing hierarchies and SCDs) may sometimes be as important. This is particularly true where the end-user front-end is via MOLAP (Essbase et. al.) with the relational star-schema being optimised for night-time cube loading. In that scenario,the day-time database is available for ETL loads and adhoc queries generated by IT staff (and others who may not mind high query latency).

Tom

]]> By: brendan lally http://blog.gobansaor.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-3980 brendan lally Tue, 13 May 2008 02:31:25 +0000 http://gobansaor.wordpress.com/2007/02/04/build-a-data-warehouse-using-ruby-on-rails/#comment-3980 Tom, I've dabbled a bit with RoR but (at this from my large enterprise db experiences etc.) but it has "issues" with large db systems - particularly via ActiveRecord Looking at ActiveWarehou I can't see how its gonna get around this problem. Maybe in time but do feel it needs 2 get away from AR and use some other ORM that allows better linkability/control/tuning. Maybe Wax derivative Also some info here http://www.semergence.com/2007/03/28/activewarehouse-gets-some-love/ who at least has used it (not like me :) Lal Tom,

I’ve dabbled a bit with RoR but (at this from my large enterprise db experiences etc.) but it has “issues” with large db systems – particularly via ActiveRecord

Looking at ActiveWarehou I can’t see how its gonna get around this problem. Maybe in time but do feel it needs 2 get away from AR and use some other ORM that allows better linkability/control/tuning. Maybe Wax derivative

Also some info here http://www.semergence.com/2007/03/28/activewarehouse-gets-some-love/ who at least has used it (not like me :)

Lal

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