BPC - Script - How to get the month of a date stored as an amount?

Question

We have a account called "StartDate" in our database.
The user enter a date for this account: 01/07/2010
This date is then stored as 40360 in the db
We are trying to get the month number (7) out of this record.
We succeeded to write an sql query to do that:
Select Month( cast( as datetime ) )
From tblFact
Where = 'StartDate'
Any idea how to do that in a bpc script logic ?
Thanks,
Bénédicte

Answer 1

There's no built-in support for any type of date math in BPC script logic.
One approach I've used is to add a property to the time dimension, ExcelTimeID. Then you can compare the value to your time periods, if your logic requires this type of condition.
*WHEN SignedData
*IS < Time.ExcelTimeID
But that doesn't solve the problem you have, where you want to know the month. I can't think of an immediate solution, other than perhaps in the original input schedule to hide a second account that submits the month number (as an integer) along with the account you have now (with the full date).
Or stick a stored proc in some logic package, scheduled to run every 10 minutes or whatever, that takes the account with the date in it, and runs your query, saving the result as the month number. Ugly in so many different ways, but it's another way to tackle the problem further upstream.
And last result is to build script logic with ridiculous hard-coding of Excel time IDs all over the place.