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Database

Everything our consultants learn while running databases for customers: Oracle, PostgreSQL, SQL Server, MySQL, MariaDB, MongoDB and Delphix. Expect hands-on posts about installation, day-to-day administration, backup and recovery, performance tuning, replication and upgrades.

SQL Server 2017 on Linux and some log shipping scenarios

In this blog let’s talk a little bit about the log-shipping feature from the SQL Server CTP 2.0. First of all, let’s say that as a Windows version, it is possible to create our own solution based on Linux (and cron jobs for example). You may find out different pointers on the internet that deal with this topic. But getting… 

PostgreSQL 10 Beta 1: Native Table Partitioning

By Mouhamadou Diaw The Beta 1 version PostgreSQL 10 is now released with lot of new features. One of the most popular is the native support of table partitioning. In this blog we are going to see how we can implement partitioned table in PostgreSQL 10. Note that RANGE and LIST partition are the supported methods. In following example RANGE… 

How to manually install the ODA Plug-in 13.1.1.1.0 on Cloud Control 13.2

[vc_row][vc_column][vc_column_text]Usually, installing the ODA Plug-in is quite easy. You just run a Self Update, then you deploy the ODA Plug-in on the Management Server, and afterwards on the Agents of your ODA Bases.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][image_with_animation image_url=”16673″ animation=”Fade In” img_link_target=”_self”][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][vc_column_text]However, not every company allows the OEM to be connected to the internet, mainly for security reasons. In that case, you have… 

opatchauto and “java.lang.UnsatisfiedLinkError”, Topology creation failed when applying 12.1.0.2.170418 PSU

Yesterday I had fun with Opatch again. We wanted to apply the latest PSU (12.1.0.2.170418) on top of a 12.1.0.2 GI without any patches applied: xxxxx@xxxxx:/disk00/app/12.1.0/grid_2_4/diagnostics/ [+ASM2] opatch lsinv Oracle Interim Patch Installer version 12.2.0.1.8 Copyright (c) 2017, Oracle Corporation. All rights reserved. Oracle Home : /disk00/app/12.1.0/grid_2_4 Central Inventory : /disk00/app/oraInventory from : /disk00/app/12.1.0/grid_2_4/oraInst.loc OPatch version : 12.2.0.1.8 OUI version… 

random “ORA-01017: invalid username/password” in 12cR2

By Franck Pachot . Since 12cR2 is out, we give our 12c new feature workshop with hands-on exercises on 12.1 and 12.2 releases. When I gave it last month, I had a small problem when doing demos: sometimes the connections as sysdba failed with “ORA-01017: invalid username/password”. It was at random, about one every 5 login attempts and I was… 

12cR2 Cross-container DML – insert into container()

By Franck Pachot . Multitenant has been introduced in 12.1.0.1 with the goal to share resources but isolate data. However, having all PDBs in the same root may be convenient to manipulate data in multiple PDBs. In the first patchset, 12.1.0.2, a way to query cross-container has been introduced for the CDB administrator to see data in other containers. In… 

Personal road trip – PowerShell Conference EU 2017

Welcome to PowerShell Conference EU 2017 Started on April, 5th at 9:00 AM, I was immersed in a wonderful and amazing Open Ceremony among light effects and an epic music. Indeed, using PowerShell is always an epic moment… Then, lights turned on and all the speakers stood up and come behind the scene. As you may see, they came from… 

APEX Connect 2017 – Day 3

For the last conference day, after the Keynote about “JavaScript: The next Language YOU should learn” by Dan McGhan , I decided to attend presentations on following topics: – Upgrade your APEX app with zero downtime by using EBR – Understand and make use of CSS(3) – Best Practices for APEX Administrators – APEX Version Control and Team Working –… 

SQL Server 2017: Python server

After my article SQL Server 2017: first steps with Python Service, I write this article about my first test with the Python Server feature in SQL Server 2017. The installation is very simple, in the features Selection window, you have in the Shared Features, you have a Machine Learning Server (Standalone) with R and Python. I check Python to install…