Database management

ODA 19.9 software release is out

Introduction 6 months after the 19.6, the first 19c production release, here comes the 19.9 Oracle Database Appliance patch with major improvements. Will my ODA supports this 19.9 patch? First, the 19.9 release will be the same for all ODAs,(…)

Oracle Restart 19c and ACFS

By Mouhamadou Diaw In this blog we are going to install an Oracle Restart 19c with ASM Filter Driver (AFD). I am using following configuration -Oracle 19c -Oracle Linux Server 7.6 -Kernel 4.14.35-1902.2.0.el7uek.x86_64 Once the Oracle Restart(…)

Disk usage on ODA – Free MB and usable MB

Introduction Oracle Database Appliances rely on ASM to manage disk redundancy. And ASM is brilliant. Compared to RAID, redundancy is managed at the block level. For NORMAL redundancy, which is similar to RAID1, you need at least 2 disks, but(…)

SQL Server: Generating SQL script using PowerShell and Template file

In this blog post, I will share with you a small PowerShell script I did recently. I have noticed that my customer performs a very repetitive and time-consuming task almost every day. New columns are added to tables on(…)

Oracle Database Appliance vs Oracle Cloud Infrastructure

Introduction Oracle Database Appliances are very popular these days. And not only among new customers for this kind of engineered systems. Almost all customers already using old generation ODAs are renewing their infrastructure by choosing again ODAs, meaning that the(…)

Upgrade to Oracle 19c – performance issue

In this blog I want to introduce you to a workaround for a performance issue which randomly appeared during the upgrades of several Oracle 12c databases to 19c I performed for a financial services provider. During the upgrades we ran(…)

Getting started with Exasol – Loading data from PostgreSQL

In the first post of this series we brought up an Exasol test system to have something to play with. Because playing without data is a bit boring this post is about loading data from PostgreSQL(…)

Duplicate Database on ODA X4

By Mouhamadou Diaw The ODA X4 is still in use for some customers. The last time I was asked to validate the backups . Let me explain the context. Actually the backups are done via RMAN on local in a(…)

Oracle 20c Data Guard : Standardization of Client-Side Broker Files

By Mouhamadou Diaw In an Oracle 20c Data Guard environment with a broker configured we can have following files called client-side broker files -The observer configuration file : observer.ora -The observer log file -The observer runtime datafile:(…)

Starting with PostgreSQL

In this Post you will learn how I met PostgreSQL and started to learn. If you are planning PostgreSQL as your database but don’t know where to start, this blog may help you. My background I have used MySQL database(…)