Development & Performance

SQL Server 2016: New useful function STRING_SPLIT()

Now, in the latest version of SQL Server, you have one of the most expected function as well as for developers as for administrators, splitting a string natively in T-SQL: STRING_SPLIT(<character expression>,<separator>) This function has 2 parameters: The(…)

SQL Server 2016: TRUNCATE PARTITIONS with sliding Windows scenarios

Some time ago, I had to deal with a new partitioning scenario that included sliding windows stuff for mainly archiving purpose. Regarding the customer context, I used some management scripts that include this time dropping oldest partition. We didn’t care about(…)

When an index seek operator is not always your friend

Did you ever consider an index seek as an issue? . Well, let’s talk about a story with one of my customers where the context is pretty simple: a particular query that is out of the range of the application’s(…)

Les 24 heures du PASS (24HOP) – édition francophone

Je n’ai pas encore blogué sur le sujet mais il est temps de le faire. Cette année, aura lieu la première édition francophone des 24h du PASS  les 20 et 21 septembre(…)

Java reflection: Get classes and packages names from a root package within a custom URLClassloader

I have got a case for which I needed to use a custom Classloader, in order to find the list of classes and packages available across several software plugins materialized by a set of jar files. These jar files(…)

SQL Server 2016 AlwaysOn: Direct seeding and performance considerations

This blog post follows the previous one about new direct seeding feature shipped with SQL Server 2016. As a reminder, I had some doubts about using direct seeding with large databases because log stream is not(…)

SQL Server 2016 – Query Store: retrieve query that doesn’t appear!

For our event SQL Server 2016 in September, I am studying the new functionality Query Store. My colleague David Barbarin have written few months ago about Query(…)

Attunity Replicate: additional column on the target

In December 2015, my colleague Vincent did a test with additional column with Oracle GoldenGate 12.2. Hervé & Vincent asked me(…)

Attunity Replicate: Backup & Restore a task

By a customer, we faced the question: how to backup and restore a replication task in Attunity Replicate? We don’t see any button or menu into the administration web console and in the Guide line, we haven’t really a(…)

PKI – SSL certificates management with Java keytool and OpenSSL

In this blog, we will cover all steps to enable SSL encryption for a particular server. The procedure described here applies mostly for Java based servers and applications, with usage of a keystore. In the case the organization(…)