Hi Ademola,
Do you want to create a filter in the query which pulls data for 25 weeks only (last 12, current & next 12 weeks)?
If yes, then you'll have to create the filter in the Universe and then use it in the query. To do that, create a pre-defined filter with the below text in its Where clause (this syntax works with SQL Server database):
@Select(Foldername/DateObjectName) Between Dateadd(Week, -12, Getdate()) And Dateadd(Week, 12, Getdate())
Foldername/DateObjectName needs to be replaced the Date object you have in the Universe, e.g. Order Date, Report Date or something else.
If you've never created a filter in the universe, my responses in this will help.
Thanks,
Mahboob Mohammed