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Swiss Postgres Conference 2015
At the 26th of June I had the chance to attend the second Swiss Postgres Conference at the HSR Rapperswil. It was packed with interesting sessions.
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Oracle Database Cloud Service - My first trial
The cloud has been annouced, I want to try. From the cloud.oracle.com/database website, there is Trial only for the 'Database Schema Service' so I asked fot it, received an e-mail with connection info...
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Oracle Log Writer and Write-Ahead-Logging
I posted a tweet with a link to a very old document - 20 years old - about 'internals of recovery'. It's a gem. All the complexity of the ACID mecanisms of Oracle are explained in a very simple way. It...
View ArticleQuickly create a hundred databases and users
Do you need a hundred databases and users for training etc. in PostgreSQL?
View ArticleIndexing for like/similarity operations
Indexing queries for like/similarity conditions is not that easy with the usual index types. The only option you have with btree indexes (especially if the wild-card is at the beginning of the filter)...
View ArticleMultithreaded 12c and 'connect / as sysdba'
In Oracle 12c you can run Oracle processes as operating system threads, lowering the number of OS processes. But you can't use OS authentification: you need to provide a password. Here is a way to set...
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Multitenant vs. schema based consolidation
If you want install multiple instances of a software, for example you host the ERP for several companies or subsidiaries, you have 3 solutions: have one database and multiple schema have multiple...
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BEEZY: Social Network for SharePoint 2013
Social Networking.. Everybody is actually "connected": professional network, private social network... There is so many solutions around as of today. Which one should I use? What are the differences?...
View ArticleODA - VMs possibilities & performances
As you know it is possible to install the ODA in a virtualized mode and to take avantages from all cores not licensed with Enterprise Edition for additional VMs. The question is what could we do with...
View ArticleTesting the just released PostgreSQL 9.5 Alpha in a docker container
On the 2cnd of July the PostgreSQL Global Development Group released an alpha version of the upcoming PostgreSQL 9.5. The same day, Josh Berkus, another of those PostgreSQL core team members released a...
View ArticleRESULT_CACHE hint expiration options
The result cache is very nice when base tables are static: get the result without any buffer get, without any join or sorts. But as soon as any DML occurs on one of the tables the result is based on,...
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Kerberos SSO with Liferay 6.1 v2
A little bit less than one year ago, I wrote a blog about how to setup the Kerberos SSO on Liferay using Apache httpd as a front-end, Tomcat as a back-end and with auth_mod_kerb and mod_jk to transfer...
View ArticleACFS 12.1.0.2 on Oracle Linux 7.1
Recently we wanted to create an ACFS filesystem on a brand new 12.1.0.2 GI installation on Oracle Linux 7.1. According to the documentation this should not be an issue as "Oracle Linux 7 with the...
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Clustered columnstore index and memory management
Few weeks ago, I had the opportunity to give a session about the clustered columnstore index feature (CCI) at our In-Memory event dedicated to In-Memory technologies for Microsoft SQL Server, Oracle...
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Don't use the default database file autogrow settings !
I often noticed default values for database file autogrow settings during my audits. You don't trust me? Let me talk about a funny story about an incredible (and extreme) situation that concerns a...
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New search capabilities in SharePoint Server 2013-2016
For the ones who have not migrated their environment on SharePoint 2013, or the novices, here is an article in which we will discover the new search capabilities in SharePoint Server 2013.We will have...
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How to solve accent sensitive problems?
Some days ago, one of my customer claimed that searching for “Muller” doesn’t return “Mueller” and “Müller” as well! This is typically an issue due to the collation of the SQL Server database, but how...
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Dealing with SSRS subscription schedules in AlwaysOn environment
A couple of days ago, I had the opportunity to work with AlwaysOn 2014 infrastructure that included a report server (SSRS) in native and scale-out mode. As you know, dealing with SSRS and availability...
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SQL Server 2016: In-Memory OLTP enhancement
The CTP2.1 has been released for some weeks and it is time to check which interesting enhancements have been already deployed for the In-Memory OLTP feature. I will first have a look to the memory...
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Upgrading SQL Server pods on K8s and helm charts
It has been while since my last blog. Today it is about continuing with helm charts and how to upgrade / downgrade SQL Server containers to a specific cumulative update. My first write-up in my to-do...
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