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THINK and UNDERSTAND before you give “advice”

One tag. Rant.

Every now and then when I’m on the OTN forums, I run into gems like this: https://community.oracle.com/thread/3589607

The problem isn’t the question – it’s the “answer” which is both mind-blowingly wrong on so many levels and ends with the usual childish “Gimme points, I crave attention!” footer. I’m not going to go into details on the technical solution since that’s covered in my response to the thread itself, but let me just make one thing clear:

Use content from a presentation like Jeff’s without thinking just to – wrongly – “prove” your point and you will tick me off. Seriously.

Why did Jeff include the 1=1 join option? Did you see that it was an option and not the ultimate answer ® ? Do you even know what a content level is?

< / rant >

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I often get to hear the following question concerning OBIEE agents:

“Why can’t we send out personalized content (filtered data / row-level security) to non-OBIEE users by simply using their email address residing in the data?”

Killer answer: Security!

Think about it: If you use “Get Recipients from the Analysis used in the Agent Condition”, it will actually perform a complete login with authentication + authorization through the security realm and only the fetch the data.

Now imagine that you bypass this “because it’s so convenient to just have the email in the data”. And now imagine me doing this:

update MYTABLE set EMAIL = ‘uber.h4xx0r@somenastyplace.thief’;
commit;

I think this should be answer enough as to why you do NOT want to be able to do this.
At all.

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I noticed something very disturbing after applying 10.1.3.4.1 to our development environment: report grand totals for tables and row totals for pivots don’t yield any results anymore unless you manually set all fact columns to “Sum” or “Avg” in the report. The “Aggr_External” which has normally had its effect (by importing it from the cube through the physical to the BMM layer to presentation layer) no longer takes care of this.

Let’s look at the issue in detail:

Upgrading to 10.1.3.4.1, this is what we find as a default behaviour in a simple table report:

And in a pivot:

Now think about the concept behind building an rpd on top of an Essbase source for a second. Ponder what Venkat wrote about aggregations in for 4-article series here, here, here and here. No longer utilizing Aggr_External and just no longer aggregating at all is just plain stupid. (Yes, I’m on kind of a rant here…)

Now to correct that quick & dirty in the report, we assign an aggregation rule in the column formula:

And…oh miracle…we have data again:

Now as I said, I find this nothing but retarded.
Why has this been changed? Is this actually expected behaviour? If so…what’s the rationale behind that? Normally, aggregation rules set on the BMM layer always persist unless they are explicitly overwritten either in the column formula or for pivots in the measures. Why drop this all of a sudden?

My manual intervention is a workaround, but I’m facing several cubes and almost a hundred reports. Furthermore, one of the Account dimensions has more than 400 members. So manually changing 400 potentially mapped account members isn’t fun…

So the solution (if I will actually keep 10.1.3.4.1 and not just drop if for a downgrade) would be to modify the BMM layer and change all normal account members to “Sum” and all percentages to “Avg” as aggregation rule.

Stay tuned for my upcoming rant on dimension members and filters. Another extremely intelligent change with 10.1.3.4.1.

Update:
Venkat reacted to my post here. I tested it and it seems that despite having label only top level members like he mentioned, some analyses seem to work with totals and grand totals. This will need more investigating.

Cheerioh,
Christi@n