Postgres Covering Indexes and the Visibility Map

Covering indexes in Postgres came up in our weekly tech call because of a query optimization review one of the teams ...

Oracle RAC: Network Performance with Jumbo Frames

Introduction When working with Oracle RAC, it's strongly advised to use Jumbo Frames for the network that provides the ...

PostgreSQL Backups

There are at least four ways to back up a Postgres database: SQL dump, filesystem snapshots, continuous archiving, and ...

Using MySQL Workbench to Connect Through ProxySQL 2

So, I admit the title for this post is a bit ambiguous. Not only is it the second post I've written in a short period ...

VPN Options with Azure: Azure to Site

As business entities move some of their services to Microsoft Azure Cloud (Azure), we see hybrid networks emerge that ...

Using MySQL Workbench to Connect Through ProxySQL

MySQL Workbench is a popular tool for many developers working with a MySQL backend database. In a simple environment ...

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 ...

The things I hate about Apache Cassandra

Intro First, let me start by saying I do not hate Cassandra. I love Cassandra. In its place, Cassandra is a powerful ...

Join, Group By, and Aggregate in Cloud Data Fusion

Good news! Cloud Data Fusion is now GA. Announced at Google Next ‘19 UK on November 21, 2019, Cloud Data Fusion is a ...

Migrating SQL Server On-Premise to Azure SQL

Let’s revisit our options when moving your SQL Server workloads to Azure and check out ways to migrate on each of them. ...

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 ...

Conventions Make for Easy Automation

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 ...

Installing OCI Command Line Utilities in Linux and Windows

As part of a recent project, I installed the Oracle Cloud command line utilities (oci) on the following Linux systems:

Migrate Postgres Database from EC2 instance to RDS using AWS DMS (Data Migration Services)

In this post, we will explore one approach to Migrate PostgreSQL DB on EC2 instance to RDS instance using AWS Data ...

Extracting DML Stats/Workload With GoldenGate

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

Caution: Using AutoUpgrade with Multiple Databases from the Same ORACLE_HOME

Here's a short and sweet post. "In Deploy mode, AutoUpgrade also confirms that the upgrade has succeeded, and moves ...

How To Export Collections in SCCM to CSV Using Powershell

Your mission: Gather a list of servers in a specific collection on System Center Configuration Manager (SCCM) so you or ...

Data Guard Listener Networking

I am currently reviewing an environment to create a third standby database. One of the primary challenges I’ve ...

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:

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 ...

Deep Learning: Techniques to Avoid Overfitting and Underfitting

Machine Learning is all about striking the right balance between optimization and generalization. Optimization means ...

DBAs and the Cloud: Evolving Roles and New Challenges

The adoption of cloud services is soaring and causing an enormous shift in the role of DBAs. Depending on whether an ...

How to Connect from Cloud Functions to the Private IP Address of Cloud SQL in Google Cloud

Cloud functions allow you to run single-purpose functions without having to manage instances in Google Cloud. Cloud SQL ...