Important points related to Multitenant Architecture Oracle 12C
# Undo tablespace is common for all containers.
# A common temporary tablespace is required for all containers however each PDB can have its own temporay tablespace for its application users
# Redo log files is common for all containers.
# Each Datafile is specific to a single container represented by a con_id
# Control files are common for all containers.
# Regarding archivelog mode or non archivemode, all the PDBs in a CDB share the archivelog mode of the CDB.
# Now each container has its own dictionary that means each container has its own system tablespace now and a sysaux tablespace also.
# There is a limit of 253 PDBs in a CDB including the seed
# Limit of 512 services in a CDB
# Undo tablespace is common for all containers.
# A common temporary tablespace is required for all containers however each PDB can have its own temporay tablespace for its application users
# Redo log files is common for all containers.
# Each Datafile is specific to a single container represented by a con_id
# Control files are common for all containers.
# Regarding archivelog mode or non archivemode, all the PDBs in a CDB share the archivelog mode of the CDB.
# Now each container has its own dictionary that means each container has its own system tablespace now and a sysaux tablespace also.
# There is a limit of 253 PDBs in a CDB including the seed
# Limit of 512 services in a CDB
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