Hi. I am a analysis services/cubes newbie, but on the track to getting what
I need to know upside down

I wanted to get some best practices for the following issues (maybe I will
start with one and then add as I go...)

My system records data, the classical thing a transactional DB is doing. the
fact table gets new entry about every 10 seconds. that data is analyzed and
other entries are written to other fact tables.

I then build a OLAP view in analysis services. lets say for now it is a
simple MOLAP, updated once every 24H. Now, I have a web page showing the
data, like a histogram of the facts in the table. But that histogram is
usually just of the last 7 days (for example, if it was products bought,
then it would have been a histogram of how many products bought from each
product, in the last 7 days).

no, I do it over the partitions set up automatically by AS-2005. (I have one
partition for each table). But I thought it would be MUCH more efficient if
I had one partition for the last month, and another for the rest. the web
page would then only run on the smaller partition and give the results much
faster.

problem: I don't know how to make these partitions. I know how to make *a*
partition, but how do I tell it that "it is of the last 30 days" data? and
then another partition takes the rest?

thanks