Tag: oracleandme
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Asymmetric dataguard with multitenant (part 3/3)
This series concludes with insights on managing PDB behavior in physical dataguard, emphasizing the importance of thoughtful strategies before executing an operation. It discusses proactive steps to address potential problems and works through examples of how to ensure dataguard synchronization without unnecessary downtime. The importance of detailed planning, adjustment of ENABLED_PDBS_ON_STANDBY parameters, and possible alternatives…
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23c – Hybrid Read-Only PDBs
Several application’s maintenance tasks in an database require keeping users out of it. For instance, performing a parallel recompilation of objects after a code update. In these cases one of the most useful tools is to use dynamic services, which allow us to disconnect clients in a controlled, convenient and centralized manner. However, even today…
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23c – Simplified PDB hot cloning in a Physical Dataguard environment
In one of the previous articles I superficially mentioned a relevant limitation in the combination of Multitenant + Dataguard in 19c: It simply cannot execute a synchronized hot cloning (primary cloning cascading to the standby). Today we are going to address that issue in detail, and we will discover an important improvement that we find…
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23c – Floating PDBs – The Lab
The main objective of this laboratory is to understand the behavior of PDBs (Pluggable Databases) and services based on their configuration, particularly focusing on a “floating PDBs” configuration. We are interested in observing if the clusterware properly distributes the PDBs and their services during startup, verifying the behavior in case of a node failure in…
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19c PDB “Snapshot copy” series- Chapter 2 – ACFS
Today we will focus on a simple practical exercise where we are going to demonstrate how easy it is to create snapshot copies with a minimal infrastructure. We start from a 19c EE single instance database and ASM storage. This database consists of the CDB “CDBA” and the PDB “PDB1”, running on a virtual machine.…
Oracle and Me 