Using LetsEncrypt Certs with Oracle E-Business suite

Oracle Database 18c schema only accounts

One nice new feature of Oracle Database 18c is that schemas can be created without a password. These are called " ...

Using AI for database administration automation - extracting useful information from log files

When talking about automation for Oracle Database Administration, besides automation of ...

MySQL 5.7 Multi-threads replication operation tips

With support of multi-threads replication starting from MySQL 5.7, the operations on slave are slightly different from ...

Using Kerberos configuration manager to resolve Microsoft SQL server SPN issues

Identifying SPN registration and authentication failures

It’s not uncommon to have authentication issues ...

Why column stores?

Introduction

SQL Server and Azure - hybrid partitioning - a low-cost solution to retain your data

It's already a fact: cloud is here to stay. As time goes by, we have a better understanding of how it really works ...

Using Oracle Wallets and SEPS with Perl, JDBC, and ODBC

A few years ago I wrote a couple of popular blog articles on using Secure External Password Stores (SEPS) and ...

SQL Server on Linux – Configuration (Ubuntu)

Following on from my previous ...

MySQL log rotation

Overview

Oracle’s Database Security Assessment Tool (DBSAT) Version 2 (2.0.1)

Background

gh-ost with Amazon RDS / Aurora

Doing online schema changes in a managed database environment is not as straight-forward as one may think. Using gh-ost ...

Improve Oracle performance with ASM filter driver

Context

Sometimes the results found in performance testing can be a bit of a surprise. I have recently been ...

The case against auto increment in MySQL

Introduction

Cleaning up PID files when Oracle GRID/RAC upgrades and patches fail

Introduction:

Unfortunately is it not all that unusual for a patch or upgrade to Oracle Grid or RAC to ...

CPU utilization is not a useful metric

Once upon a time CPU utilization was quite a useful metric. Following are the output of several tools that provide CPU ...

How to display database statistics for all objects used in a SQL statement

When my current task is to optimize a particular SQL statement, I find it quite useful if I can determine if the ...

Cosmos DB indexing fundamentals – SQL on the edge episode 15

As Microsoft's premier NoSQL cloud offering, Cosmos DB offers some interesting design decisions and trade-offs that are ...

Log rotation for Oracle database

Most of you may already know how to configure the log rotation for your database alert log or the listener log etc,. As ...

Lightweight transactions in Cassandra

Cassandra support for transactions

Unlike commonly used relational database platforms, ...

How Linux Hugepages work to improve Oracle performance

This post is not intended to be an in-depth discussion of how Linux Hugepages work, but rather just a cursory ...

Backup and data streaming with xbstream, tar, socat, and netcat

Comparing Xtrabackup Streaming Methods: XBSTREAM vs. TAR

On April 4th 2012

Database migration using Apache NiFi

Introduction

A look at current "Infrastructure as Code" Trends

Unless you have been hiding under a rock, you have probably heard the term ...

How to immediately kill ALL processes for a Unix user

Context

On occasion I have found it necessary to immediately kill all processes for a particular user on a ...

Cassandra use cases: when to use and when not to use Cassandra