Creating the DLP Oracle database for DCS with EV - separate db required?

Hi Guys,

Does anyone know if using an existing Oracle database for DLP/DCS with EV is OK?  The Installation guide clearly says "create a new database called Protect using the template provided". 

I have stated this to the client, however the client says all their other apps that use oracle are OK using the same db, each with its own schema.  Why does DLP need a separate database?

Can Symantec provide just the schema so they use a shared database instead of a dedicated db just for this app?

Has anyone done that type of install.  Any info would be appreciated.

Thanks,