How to Clone a Non-CDB as a PDB in a CDB with Data Guard Configuration
Introduction I have provided help for some people from GUOB community a few times with questions about “how to clone […]
Multitenant, Oracle Data Guard
Linux
Oracle Linux Error – qemu-kvm: unable to map backing store for guest RAM: Cannot allocate memory
Introduction I found this note about a issue I faced some time ago and noticed I forgot to post here
Multitenant, upgrade
How to Upgrade the Database Timezone File for a Specific PDB in Oracle RAC
Introduction A client has reported na issue while trying to execute a impdp against a PDB that failed with the
Erros, RMAN
RMAN Can Fail on Windows when Using SBT_LIBRARY Under “C:\Program Files”
Introduction A few weeks ago one client reached out to me asking to help him to configure a RMAN script
Linux, OLVM
How to Manually Import a ISO image in the OLVM host
Introduction I have been using OLVM for home lab purposes since 2021, and in this blog post I will show
Erros, opatchauto
Grid Startup Fails with “WARNING: FAILED to load library: /opt/oracle/extapi/64/asm/orcl/1/libafd19.so” After Grid Infrastructure Patching
Introduction In this blog post I will share a example of issue that I faced sometime ago. This post was
Transparent Data Encryption
How to Convert Oracle TDE from Oracle Key Vault (OKV) to Local Wallet (FILE)
Introduction In this blog post I will show you a step by step for revert the TDE configuration from Oracle
Erros
Oracle fails with ORA-01154 while trying to drop a Restore Point
Issue Today after trying to startup a RAC test database, the resource ended up with INTERMEDIATE state on Clusterware, as
Exadata
Apresentação “Oracle Database 23ai & Exadata Exascale” – GUOB TECH DAY 2025
No último dia 23/08/2025 eu estive em São Paulo palestrando no GUOB Tech Day pelo terceiro ano consecutivo. Este ano
Exadata, OCI Database Services
How to Resume an Failed Grid or DB Home Patch Operation in the Exadata Cloud (ExaCC/ExaCS)
When we need to apply patches on Exadata Cloud Service (ExaCS) or Exadata Cloud at Customer (ExaCC), we have great