First and Last Date.  Is is possible in Essbase?

Hello All,<BR><BR>Here are the dimensions in my outline:<BR>- User<BR>- Application<BR>- Dates<BR>- Measures (Count, FirstLoginDate, LastLoginDate)<BR><BR>I am trying to create a report in Essbase that shows the first and last date that each user accessed each Essbase application. I created an ETL process that builds a relational table with one record for each unique combination of User/Application/Day where a user was logged into an application. This process gets its source data from the Essbase application log files. I am loading a count of 1 to each intersection of User/Application/Day. I also want to add the first and last day to the cube but can not figure out how.<BR><BR>1) Is there an easier way to get at the source data then the application log files?<BR>2) If the application log files are the way to go, how do I indicate in the cube what the first and last login days are for each combination of User/Application?<BR><BR>I was thinking of loading the serial dates to the FirstLoginDate and LastLoginDate measures. The trouble I am having is where to load the dates data. Do I load it to level 0 (individual dates) and then use time balance to get the dates up to the higher levels (month, year) or load it at the higher levels? If I should load it at the higher levels, do I assume correctly I will need to create another relational table with one record for each User/Application/Month and User/Application/Year that shows the first and last dates? Any other ideas?<BR><BR>Thank you in advance,<BR><BR>Bill Handelman<BR>847-989-1758<BR>[email protected]<BR><BR>

While you may have natural ordering in your date dimensions, Essbase doesn't handle first and last dates well. The one area where ther is at least some funcionality in date manipulation is inattribute dimensions, however, the easy use there allows only one date attribute using normal date processing. It gets a great deal more complex using two dates.<BR><BR>Look up the DBAG references to the date type of attribute dimensions, you might find it a partial solution to your problem.<BR><BR>If you go the serial date method, load at level 0 and want to use time balance to bring the values up, you still need a time dimension. If I were designing something, I might use the first access date as a time dimension and the last access date in an attribute dimension, but I'm rambling rather than analyzing.<BR><BR>In any case, look at the date type attribute dimension as one possible option for your cube.

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