Hello Anya.
This is very well possible 
. . Please have the details and process here.
Solution on the below are possible.
- Real time Planning
- Real time Detailing
Pl understand and have close look at the below URL's.
1. Blog: The Realtime Organisation - Planning when... | SAP HANA
2. Real time Scenario: http://www.sierratec-us.com/wp-content/PDF/Sierra_DBPM_Demo_V9.pdf
Hope this helps. Thank you. . .