Primavera and ms project

Hello,

I would like to know  if it is possible to use SAP instead of primavera 6 ( oracel) for project management such as : making  s- curve , gant chart, cpm, project scheduling and contorling , resource allocation and leveling?

and also , basically, what is the diffrence between SAP project management software and Oracel P6 or ms project? which one is better for project managment Only?

thanks!