Matheus Boesing

Well known in the Oracle community in Latin America and Europe where he participates regularly in technology events, Matheus is actually the youngest Oracle ACE Director in the world. Lead Database Consultant at Pythian, Matheus is a Computer Scientist by PUCRS and has been working as an Oracle DBA for the last 10 years.

Oracle

Services [not] Starting Automatically with CRS after Reboot?

Hello all! So, a client asked me to check why his database was not starting with CRS after a reboot. I started ...

Oracle

Solving an unusual Oracle upgrade issue

Background I recently came across a very unusual situation. During an upgraded review, I noticed the ...

Oracle

Trace on Standby: Tracing MRP Process

Sounds simple, right? And it really is, although it might not seem obvious. Recently, I ran into an issue when trying ...

Oracle

Automating Oracle Startup/ Shutdown on Linux (Non-Restart)

We have all set up automatic startup and shutdown of an Oracle Database on Linux at some point. I, myself, have made ...

Oracle

19c Auto-Indexing: ORA-65532: Cannot Alter or Drop Automatically Created Indexes

It’s one of those classic "Oracle knows best" moments, isn't it? You try to take back control of your own schema, and ...

Oracle

How to Read Oracle Traces from SQL*Plus

Situation Let's say you need to read trace files from Amazon Relational Database Service (RDS). How do you do it?

Oracle

Datapatch Failing on ORA-65108 (PDB$SEED): Applying Datapatch Manually

Problem In a new 12c environment (which actually includes 18c and 19c, as per the 12c family), the datapatch failed on ...

Oracle

Extracting DML Stats/Workload With GoldenGate

Quantifying data movement across the environment After setting up GoldenGate in your environment, you might ask ...

Google Cloud

CRS-10051: CVU found following errors with Clusterware setup

Error Statement I recently found this interesting message error in a CRS alert log from a client environment:

Oracle

Automatic Graceful Shutdown and Consistent Startup Method for Oracle DB on Linux

Having questions about automatic startup and shutdown is quite common when dealing with new environments or ...

Oracle

AWS RDS: 5 Must-Know Actions for Oracle DBAs

Managing Oracle on AWS has some twists. Here are five daily DBA activities that have changed on AWS:

Oracle

IPv6 Formatting for JDBC and SQLPlus

Does IPv6 formatting for JDBC and SQLPlus seem new to you well, it's been available since 11gR2. You're familiar with ...

Oracle

How to Set Up Out Of Band Notifications in OEM 13C

So, after an abnormally quiet weekend, I was being paged: Oracle Management Services (OMS) was down! Well, this ...

Oracle

How to Quickly Ignore ORA Error on Agent Layer

I had a very specific situation where I wanted to ignore an error from a specific agent. It turns out that it is easier ...

Oracle

Post-Mortem Analysis Tools: Systemstate Dump

Previous Highlights Editor’s note: This “post-mortem analysis” series consists of four posts in total. Make sure you ...

Oracle

Five Best Practices for Setting Dispatchers on Shared Connections

In this post I’d like to present five best practices/tips for setting dispatchers for database shared connections: 1. ...

Oracle

“The Cluster Upgrade State is [ROLLING PATCH]” with Correct Patch Level in all Nodes

I was performing a spot health check in a client environment, when I encountered this: [oracle@dbserver1 ~]$ crsctl ...

Oracle

Automating APEX Applications Backup

In a previous post, I discussed that the APEXExport tool may be the best one to use when exporting APEX applications. ...

Oracle

OEM 12.5: Tablespace Allocation Metric Not Collected—Agent Is Running but Not Ready

Background I ran across an interesting case within OEM 12 (Oracle Enterprise Manager) Release 5. A client reported the ...

Oracle

Post-Mortem Analysis Tools: ASH Dump

Editor’s note: This “post-mortem analysis” series consists of four posts in total. Make sure you also check out: ...

Oracle

Relying on Guaranteed Restore Points? Be careful!

Context Are you relying on guaranteed restore points (GRP) as a fallback plan for your migration or upgrade strategy? ...

Oracle

Moving APEX Applications Repository with APEXExport

Most likely you’ve landed here because you need to migrate APEX applications/workspaces from one database to another. ...

Oracle

Exadata: Automating Compliance Checks

Introduction to Autonomous Health Framework (AHF) I wanted to share a brief summary–a cheat sheet–to highlight the ...

Oracle

Resolving Data Guard ORA-16714: LogFileNameConvert Inconsistency

This seems like a simple message to fix, right? The parameter is different between the broker configuration and the ...

Oracle

Post-Mortem Analysis Tools: Hanganalyze

Post-mortem analysis tools: hanganalyze Editor’s note: This “post-mortem analysis” series consists of four posts in ...

Oracle

ORA-12537: TNS:connection closed – When Nothing Else Works!

When you’re sure all the TNS listener (SID_LIST_LISTENER in this case) services and db_domain are fine, but you still ...

Oracle

Opatchauto Failing On “CheckActiveFilesAndExecutables” during Prerequisite Check

Very recently, when applying the 2021 January CPU in a client environment, the following happened: The failure ...

Oracle

ORA-19665: Size in File Header Does Not Match Actual File Size of String

I received the above message related to an ORA-7445 on my 11.2.0.4 database: ORA-07445: exception encountered: core ...

Oracle

AWS RDS: Read Oracle Traces from SQL*Plus

Today’s post is another dealing with AWS services. Let’s say you need to read trace files from RDS — how would you do ...

Oracle

Exadata Health Check: My Top 5 Tools and Features

From ORAchk/EXAchk/ODAchk, Database Security Assessment Tool (DBSAT) and Hang Manager, to Cluster Health Advisor (CHA), ...

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Matheus Boesing

Posts by Matheus Boesing

Services [not] Starting Automatically with CRS after Reboot?

Solving an unusual Oracle upgrade issue

Trace on Standby: Tracing MRP Process

Automating Oracle Startup/ Shutdown on Linux (Non-Restart)

19c Auto-Indexing: ORA-65532: Cannot Alter or Drop Automatically Created Indexes

How to Read Oracle Traces from SQL*Plus

Datapatch Failing on ORA-65108 (PDB$SEED): Applying Datapatch Manually

Extracting DML Stats/Workload With GoldenGate

CRS-10051: CVU found following errors with Clusterware setup

Automatic Graceful Shutdown and Consistent Startup Method for Oracle DB on Linux

AWS RDS: 5 Must-Know Actions for Oracle DBAs

IPv6 Formatting for JDBC and SQLPlus

How to Set Up Out Of Band Notifications in OEM 13C

How to Quickly Ignore ORA Error on Agent Layer

Post-Mortem Analysis Tools: Systemstate Dump

Five Best Practices for Setting Dispatchers on Shared Connections

“The Cluster Upgrade State is [ROLLING PATCH]” with Correct Patch Level in all Nodes

Automating APEX Applications Backup

OEM 12.5: Tablespace Allocation Metric Not Collected—Agent Is Running but Not Ready

Post-Mortem Analysis Tools: ASH Dump

Relying on Guaranteed Restore Points? Be careful!

Moving APEX Applications Repository with APEXExport

Exadata: Automating Compliance Checks

Resolving Data Guard ORA-16714: LogFileNameConvert Inconsistency

Post-Mortem Analysis Tools: Hanganalyze

ORA-12537: TNS:connection closed – When Nothing Else Works!

Opatchauto Failing On “CheckActiveFilesAndExecutables” during Prerequisite Check

ORA-19665: Size in File Header Does Not Match Actual File Size of String

AWS RDS: Read Oracle Traces from SQL*Plus

Exadata Health Check: My Top 5 Tools and Features

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