Manuals

Just glancing through the 12c manuals (Server Reference 12.1 June 2013 – E17615-16) to check a particular database limit, I came across the following: “Services – maximum per instance – 115″. That’s a bit of a problem, given that you can have 254 pluggable (tenant) databases in a single container database, and each plugged database gets its own service – but I’m guessing that that bit of the manual is wrong, after all it didn’t say anything about pluggable databases at all. It’s hard to keep documentation up to date as things change.

Here’s a random thought, though, loosely linked to database limits. If you’re looking ahead to a time when you have lots of tenants in a container database, you might want to start by migrating your existing databases from smallfile tablespaces to bigfile tablespaces (which may make it a good idea to run with change tracking enabled) so that the final container database doesn’t have a totally unmanageable number of database files.

Related posts:

1. Pluggable 12c
2. Oracle Database 12c: Oracle Multitenant Option by Gerlinde Frenzen
3. Oracle 12c Backup & Recovery: What’s new?
4. Plugging In: Oracle Database 12c Pluggable Databases
5. Oracle Database 12c and APEX
6. 12c New Feature – Container and Pluggable Databases (Multitenant Option)
7. Cloning Oracle 12c Pluggable Databases
8. OOW Day 3: Playing with Oracle 12c – new features pluggable & multitenant database
9. Oracle12c database creation using DBCA
10. 12c How to plugin a non-CDB database to a Container Database (CDB)