Blog | Pythian (17)

Microsoft SQL Server

Top 10 New Features of SQL Server 2019

Editor’s Note: Because our bloggers have lots of useful tips, every now and then we bring forward a popular post from ...

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

Change Port Number in Common Object Service (COS) Naming Service for Reports Server Discovery

Recently I received a request to change the port number used by an Oracle reports naming server. I looked into MOS and ...

DevOps

How to Secure Your Elastic Stack (Plus Kibana, Logstash and Beats)

Editor’s Note: Because our bloggers have lots of useful tips, every now and then we bring forward a popular post from ...

Oracle

Recreate Redo / Standby Logs in a DG Broker Environment

While increasing the redo log file size for my production environment, I came across a requirement I’d like to share ...

Oracle

How to Clean up Trace and Audit Files for Multiple Homes

I’ve been working on a simple method to clean up audit and trace files for multiple homes. Identifying Grid and ...

Oracle

Select vs Assign – How To Assign PL/SQL Variables

Select vs Assign It isn’t unusual to see PL/SQL that contains select columns into variables from some_table This is ...

Analytics

Google Cloud Composer Costs and Performance

Managing, optimizing and balancing cloud cost vs. performance is an ongoing challenge for all cloud architects and ...

MySQL

Watch Out When Running Out of Disk Space With InnoDB Group Replication Cluster

Oracle MySQL Community Edition comes with a native, virtually synchronous, clustering solution called InnoDB Cluster. ...

Oracle

How to Make Oracle Use the Correct Index

Introduction When the “wrong” index is used for a SQL query, it’s sometimes a struggle to coerce Oracle to use the ...

Oracle

Automating Oracle Patching With an Ansible Module

Editor’s Note: Because our bloggers have lots of useful tips, every now and then we bring forward a popular post from ...

Oracle

Using ADRCI to Review Recurrent Issues

Managing diagnostic data across multiple systems with ADRCI Reviewing recurrent issues for database systems is ...

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

Can Concurrent Processing Abort Help Automation and Predictable Maintenance?

On the surface concurrent processing (CP) looks simple; a new request is pending for a while, then it runs and is ...

Microsoft SQL Server

Graph Algorithms and Inference

Context If you’ve used Google Maps for directions or “friended” someone on Facebook, you’ve experienced graph theory. ...

Oracle

AutoUpgrade: Plug Noarchive Non-CDB Database as Upgraded PDB

The Database AutoUpgrade utility has been slowly developing its capability to cover all possibilities of database ...

Google Cloud

Near Real-Time Data Processing for BigQuery: Part One

This post describes (near) real-time data processing for BigQuery with unique and other check constraints, and unit ...

Infra Ops

Installing Elasticsearch Using Ansible – the Quick Way!

Editor’s Note: Because our bloggers have lots of useful tips, every now and then we bring forward a popular post from ...

Oracle

How To Easily Purge Logs for GI and DB

Simplifying log management with purgeLogs With a total of 33 directories for GI (Grid Infrastructure) and DB (database) ...

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

Detect and Notify Linux Server Restart

When Oracle support performs maintenance for Exadata Cloud, communication can sometimes be a bit sparse. Typically, ...

Oracle

How To Rename Interval Partition with More Meaningful Name

Renaming oracle interval partitions for better readability When using interval partitioning, the database automatically ...

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

How to Execute 19c runcluvfy.sh With Root and Sudo Method

Editor’s Note: Because our bloggers have lots of useful tips, every now and then we bring forward a popular post from ...

Microsoft SQL Server

User “guest” does not have permission to run DBCC CHECKIDENT for object

DBCC CHECKIDENT example DBCC CHECKIDENT is used to check or change the value of an identity column in the specified ...

Oracle

Oracle Service Bus (OSB) 12c LDAP Authorization – HTTP 401 (Unauthorized)

Context Oracle Service Bus 12.2 and onwards is available to download on Oracle Support. As you might expect, the new ...

Oracle

How to Clear RMAN Channel Configuration

I’m glad to get back to blog writing and, after a bit of a break, I’m starting with a brief post. We DBAs have probably ...

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Top 10 New Features of SQL Server 2019

Post-Mortem Analysis Tools: Systemstate Dump

Five Best Practices for Setting Dispatchers on Shared Connections

Change Port Number in Common Object Service (COS) Naming Service for Reports Server Discovery

How to Secure Your Elastic Stack (Plus Kibana, Logstash and Beats)

Recreate Redo / Standby Logs in a DG Broker Environment

How to Clean up Trace and Audit Files for Multiple Homes

Select vs Assign – How To Assign PL/SQL Variables

Google Cloud Composer Costs and Performance

Watch Out When Running Out of Disk Space With InnoDB Group Replication Cluster

How to Make Oracle Use the Correct Index

Automating Oracle Patching With an Ansible Module

Using ADRCI to Review Recurrent Issues

Relying on Guaranteed Restore Points? Be careful!

Moving APEX Applications Repository with APEXExport

Can Concurrent Processing Abort Help Automation and Predictable Maintenance?

Graph Algorithms and Inference

AutoUpgrade: Plug Noarchive Non-CDB Database as Upgraded PDB

Near Real-Time Data Processing for BigQuery: Part One

Installing Elasticsearch Using Ansible – the Quick Way!

How To Easily Purge Logs for GI and DB

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

Opatchauto Failing On “CheckActiveFilesAndExecutables” during Prerequisite Check

Detect and Notify Linux Server Restart

How To Rename Interval Partition with More Meaningful Name

AWS RDS: Read Oracle Traces from SQL*Plus

How to Execute 19c runcluvfy.sh With Root and Sudo Method

User “guest” does not have permission to run DBCC CHECKIDENT for object

Oracle Service Bus (OSB) 12c LDAP Authorization – HTTP 401 (Unauthorized)

How to Clear RMAN Channel Configuration

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