Macros (Part 2 of ?): Timestamp of a dimensional twist.

One of the problems often faced when working with true dimensional sources (as opposed to DMR which will not be discussed here, ever) is working with dates. You can very easily make Current Year or Previous Year members, but those will not allow you to use the family functions. How then can you make a query default to a specific year?

To begin you must first understand the structure of your cube. Different cubes have different ways of building their members. The Member Unique Name (MUN) for a specific year might look like:

[Cube].[Date].[Date].[Year]->:[PC].[@MEMBER].[20100101-20101231]

You can use

children([Cube].[Date].[Date].[Year]->:[PC].[@MEMBER].#sb(timestampMask($current_timestamp,’yyyy’)+’0101-‘+timestampMask($current_timestamp,’yyyy’)+’1231′)#)

Cognos will resolve that statement to children([Cube].[Date].[Date].[Year]->:[PC].[@MEMBER].[20100101-20101231])

You can also use timestampMask with prompt macros:

#timestampMask(toUTC(prompt(‘pDate’,’date’) +’ 00:00:00.000000000-00:00′),’yyyy’)#

The toUTC command will convert a string 2010-09-26 00:00:00.00000000-00:00 to a timestamp, allowing it to be used with the timestampMask function.

Back To Top