Oracle Database Express Edition (XE)

Hi

I will probably ask you a common question…

I would like to know which components (tablespaces , schemas …??) are taken into account for the 12 Gb user data limit.

I have a Xe multitenant db (1 CDB and 1 PDB)

I've just to exclude SYSTEM ,undo and temp tbs at CDB and PDB level ?

regards

Steph