In addition of my precedent blog about this subject “SQL Server Tips: Default trace enabled but no file is active…”, I add a new case where the default path of the trace file was empty. The first step was to verify if the default trace is enabled with the command: SELECT * FROM sys.configurations WHERE name=’default trace enable’ It is…
Beginning of this year, it is good to clean up orphan users in SQL Server databases. Even if this practice must be done regularly throughout the year of course. 😉 During my cleaning day, a new case appears that I never had before and enjoy to share it with you. To find orphan database-users, I use this query: SELECT *FROM…
Before SQL Server 2016, you had the possibility to check the case “Send Windows and SQL Server Error Reports….” during the installation if you want to be a part of the Customer Experience Improvement Program (CEIP). In SQL Server 2016, after the installation, all of the CEIP are automatically turned on. Why? SQL Server and SQL Azure share the same…
I would like to share with you an interesting issue you may face while using SQL Server AlwaysOn availability groups and secondary read-only replicas. For those who use secondary read-only replicas as reporting servers, keep reading this blog post because it is about update statistics behavior on the secondary replicas and as you may know cardinality estimation accuracy is an…
Sie haben es vielleicht noch nicht gesehen, aber mit den Service Pack 2 von SQL Server 2014 gibt es einen neuen DBCC Befehl: CLONEDATABASE. „DBCC CLONEDATABASE sollte Kopien eines Schemas und den Statistiken einer Produktionsdatenbank erstellen, um bei Leistungsproblemen Abfragen zu untersuchen.“ MSDN Quelle finden wir hier. Dieser Befehl kann nur Benutzedatenbanken klonen. Wie Sie sehen, für die Systemdatenbanken ist…
After the good article “A short glance at Attunity replicate” from Franck Pachot, I will continue to explain our test on Attunity Replicate with datatype and how this tool do the mapping between Oracle and SQL Server for numeric datatypes. Introduction The first step is to find the mapping between Oracle and SQL Server. I summarize this mapping in this…
In this blog post, I would like to share with you a weird issue I faced when I implemented a sliding Windows partition scenario on SQL Server 2014 SP1 at one of my customer. The idea was to keep SQL Server audit records from several SQL Server instances into a global archiving table during two years in order to meet…
Since SQL Server 2008, Microsoft has introduced a system job called “syspolicy_purge_history”. This job is installed and enabled by default, and it contains three steps scheduled at 02:00 AM: What is this job? And what is it for? Since SQL Server 2008, a new feature called Policy Based Management has been added. When your policies are run, the results…
Avant de partir pour des vacances bien méritées et une année pleine d’aventures sur SQL Server, je fais un dernier petit article pour vous informer que nos sessions des Journées SQL Server 2015 sont disponible sur SlideShare et Youtube. Un grand merci à l’équipe du GUSS pour l’organisation et leur confiance en nous. N’hésitez pas à aller également évaluer nos…
In many blogs or forums, you can read that the answer is to use the option: WITH ESTIMATEONLY. With this option, you can easily have the space estimation needed to check the database in tempdb. But be careful, only since SQL Server 2014, this estimation has been good! See the PS from Paul Randal’s blog for this information, here But…
A lot of people ask me about the different versions of SQL Server Integration Services and packages. I create rapidly this little table to summarize it: With SQL Server 2008 and 2008 R2, the SSIS version is the same than SQL Server Integration Services 10.0. With SQL Server 2005, the SSIS version is not contained in the service name. To…
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 groups is not an easy task depending on the used features. This is particularly true when scheduling and subscriptions are used by customers. Here’s a brief…
