Oracle Database Multitenant—the latest and greatest features
summary
Multitenant is now the only Oracle database architecture and up to three PDBs are creatable without the multitenant license; upgrades use a new replay-based repo so a PDB can do an automatic upgrade on open and non‑CDB→PDB conversion is faster by avoiding customer-object invalidation. Snapshot clones behave differently by storage type so ACFS avoids held‑hostage space; 21c/23c add precision cloning to timestamp, reconnectable refreshable clones for P2T workflows, per‑PDB SYSDATE time zones, hybrid read‑only (session or PDB) and PDB‑level Data Guard with recovery isolation.
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chapters (5)
- 0:00Start
- 2:25Database architectures
- 6:19New upgrade infrastructure
- 28:53Hybrid read-only mode: Summary
- 30:48CDB-Level Data Guard: PDB Recovery Isolation Mode
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