Blog | Pythian (16)

Oracle

Understanding the Implications of Creating a New PDB Using CREATE_FILE_DEST

Overview When creating a new pluggable database, or PDB, you can optionally include the CREATE_FILE_DEST clause. Here’s ...

Cassandra

How to Perform (UDC) User-Defined Compactions in Cassandra

User-defined compactions allow us to manually select which files should be compacted. This enables us to reclaim space ...

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

Enable Oracle Flash Cache on Red Hat Linux

The Oracle Smart Flash Cache feature was originally introduced in the 11gR2 version of Oracle Database. It works as an ...

Cassandra

Let’s deal with high read latencies in Cassandra

High latency values may indicate a cluster at the edge of its processing capacity, issues with the data model—such as ...

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 ...

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

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 ...

Google Cloud

Data preparation with dbt and BigQuery

Raw incoming data needs to go through a series of data preparation steps before it can be used for analysis. These ...

Snowflake

Snowflake System Function Error: Argument 0 to Function SYSTEM$PIPE_STATUS Needs to Be Constant

I recently encountered the above issue which prompted me to write this blog post so I can easily reference the solution ...

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

WebLogic Admin Console 12.2.1.4.0 Is Not Starting Due to Coherence GE 12.2.1.4.0

In this post I’ll address the situation where, after installing Fusion Middleware (FMW) 12.2.0.4, the WebLogic Admin ...

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: ...

Google Cloud

Near Real-Time Data Processing for BigQuery: Part Two

This post is part two of describing (near) real-time data processing for BigQuery. In this post, I will use Dataform to ...

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 ...

Oracle

Oracle Cloud Infrastructure (OCI) Costs—Part One: Budgets and Forecasting

Cost is a crucial part of selecting a cloud service provider. It’s important to understand the capabilities of ...

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 ...

Google Cloud

Consuming Tweets Using Apache Beam on Dataflow

Apache Beam is an SDK (software development kit) available for Java, Python, and Go that allows for a streamlined ETL ...

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 ...

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

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

How to Use EM CLI to Verify Data Guard Configurations

EM CLI (Enterprise Manager Command Line Interface) allows users to access Enterprise Manager functionality from the ...

Cassandra

Mitigating the Problems Created by Tombstones

Got too many tombstones? This blog post will talk about how to deal with tombstones once you already have them. For ...

Google Cloud

Putting ML Prototypes Into Production Using TensorFlow Extended (TFX)

Introduction Machine learning projects start by building a proof-of-concept or a prototype. This entails choosing the ...

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 ...

Analytics

Top Business Drivers for Analytics Programs: Part Two

Anyone who’s been on a road trip has heard this question. It usually comes from the backseat of the car, where it can ...

MySQL

Replicating MySQL to Snowflake with Kafka and Debezium—Part One: Data Extraction

What, Snowflake? Yes, Snowflake. While my core skills are based on the Oracle database, lately I’ve been working more ...

Oracle

SYSQL: SysAdmin Query Language

What is SYSQL? Recently Tanel Poder and I were discussing the use of Linux command pipelines for data analysis, and ...

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Becky's BI Apps Corner: OBIA 11.1.1.10.2

Upgrade jitters? If you’re running older versions of OBIA, the new 11.1.1.10.2 release brings game-changing features like automatic error handling and ...

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Understanding the Implications of Creating a New PDB Using CREATE_FILE_DEST

How to Perform (UDC) User-Defined Compactions in Cassandra

Post-Mortem Analysis Tools: Systemstate Dump

Enable Oracle Flash Cache on Red Hat Linux

Let’s deal with high read latencies in Cassandra

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

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

How to Clean up Trace and Audit Files for Multiple Homes

Data preparation with dbt and BigQuery

Snowflake System Function Error: Argument 0 to Function SYSTEM$PIPE_STATUS Needs to Be Constant

Automating APEX Applications Backup

WebLogic Admin Console 12.2.1.4.0 Is Not Starting Due to Coherence GE 12.2.1.4.0

Post-Mortem Analysis Tools: ASH Dump

Near Real-Time Data Processing for BigQuery: Part Two

Relying on Guaranteed Restore Points? Be careful!

Moving APEX Applications Repository with APEXExport

Can Concurrent Processing Abort Help Automation and Predictable Maintenance?

Oracle Cloud Infrastructure (OCI) Costs—Part One: Budgets and Forecasting

Resolving Data Guard ORA-16714: LogFileNameConvert Inconsistency

Consuming Tweets Using Apache Beam on Dataflow

Near Real-Time Data Processing for BigQuery: Part One

Post-Mortem Analysis Tools: Hanganalyze

Opatchauto Failing On “CheckActiveFilesAndExecutables” during Prerequisite Check

How to Use EM CLI to Verify Data Guard Configurations

Mitigating the Problems Created by Tombstones

Putting ML Prototypes Into Production Using TensorFlow Extended (TFX)

AWS RDS: Read Oracle Traces from SQL*Plus

Top Business Drivers for Analytics Programs: Part Two

Replicating MySQL to Snowflake with Kafka and Debezium—Part One: Data Extraction

SYSQL: SysAdmin Query Language

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