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Oracle 18c Multitenancy New Features – Snapshot Carousel, CDB Fleet and Container Maps

SNAPSHOT CAROUSEL A PDB Snapshot is a point-in-time copy of a Pluggable Database. We can create snapshots either manually using the SNAPSHOT clause of CREATE or ALTER PLUGGABLE DATABASE command, or automatically using the EVERY interval clause. When a PDB is enabled for snapshots, we can create multiple snapshots or point-in-time copies of the PDB. […]

Oracle 19c New Feature High-Frequency Statistics

The automatic optimizer statistics collection job which calls DBMS_STATS package runs in predefined maintenance windows and these maintenance windows are open once a day during which various jobs including the gathering of statistics is performed. For volatile tables statistics can go stale between two consecutive executions of such automatic statistics collection jobs. The presence of […]

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