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Rolling Upgrade: Percona Server for MongoDB 8.0.23-10 to 8.0.26-11

2026-06-26 MongoDB By Henrique

Clone a MongoDB User and Preserve the Password Hash

2026-06-26 MongoDB By Henrique

ORA-06553: DBCA Fails on catalog.sql with PLS-213

2026-06-25 Oracle By Henrique
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Oracle

ORA-29548- Java System Class Reported: Dictionary Version Mismatch

By Henrique2026-04-20 Oracle Updated:2026-05-19

This error surfaces when Oracle detects a version mismatch between the Java installed in the Oracle Home (on the filesystem)…

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Oracle

ORA-15221- ASM operation requires compatible.asm of string or higher

By Henrique2026-04-18 Oracle Updated:2026-05-19

When trying to create an SPFILE directly inside an ASM diskgroup, the instance returned: The message is clear: the requested…

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Oracle

Oracle home is already provisioned for the target – Fleet Maintenance

By Henrique2026-04-16 Oracle

You run a gold image deploy through Fleet Maintenance and hit the error below on the very first attempt- no…

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Tools

OEM PAM Authentication Failure- Fix with SSH Key Named Credentials

By Henrique2026-04-16 Tools Updated:2026-05-19

Scheduled jobs in Oracle Enterprise Manager were failing across multiple hosts with the following error: This happens in environments where…

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Oracle

PRCD-1229- srvctl Refuses Database Access After Manual Upgrade in Oracle RAC

By Henrique2026-04-16 Oracle

You just finished a manual upgrade of your Oracle RAC from 12.2 to 19c. The database is up, processes are…

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Oracle

EMD runCollection Error – OEM Agent Running but Not Collecting Metrics

By Henrique2026-04-14 Oracle Updated:2026-05-18

The Oracle Enterprise Manager agent is up, the heartbeat with OMS is fine, but metrics simply aren’t arriving. When you…

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Oracle

ORA-01031- Insufficient Privileges When Creating an IDENTITY Column

By Henrique2026-04-03 Oracle Updated:2026-05-18

You try to create a table with an identity column and Oracle throws a privilege error- even though you have…

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Oracle

ORA-12547- TNS:lost contact When Connecting with sqlplus

By Henrique2026-04-03 Oracle Updated:2026-05-19

When attempting a local connection with sqlplus / as sysdba, Oracle drops the connection before authentication completes: The impact is…

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Oracle

Resetting Oracle Sequences: RESTART and the Classic Method

By Henrique2026-03-31 Oracle Updated:2026-05-19

Whether you’re rebuilding a test environment, rolling back a bulk load, or just need to restart numbering from scratch- resetting…

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ORA-29548- How to Fix “Java System Class Reported” in Oracle Database

2026-03-0541 Views

INS-06006 – Passwordless SSH Connectivity Not Set Up

2026-02-2626 Views

PRVG-2002- How to Fix “Encountered Error in Copying File” in Oracle RAC

2026-03-0725 Views
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