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Data Quality Services (DQS) and Failover Cluster instances
One of my customers made the observation that it is not possible to uncheck the Data Quality Services component in the Feature Selection screen in SQL Server 2012 setup. The interesting thing was that she clearly recalled that earlier it was possible to select it (the default was unchecked), and we wondered...
24 Jul 2013
SQL 2014 In-Memory OLTP ‘Hekaton’: training videos and white papers
Personally, the feature I am most excited about in SQL Server 2014 is the In-Memory OLTP (codenamed ‘Hekaton’) feature. Since SQL Server CTP1 was released, a lot of my interactions with colleagues and customers have revolved around this new feature and the one question everyone has is, how do I get started...
3 Jul 2013
The Top 10 Issues uncovered by the SQL Server Risk Assessment Program (SQLRAP)
Firstly - Happy New Year, everyone! In my job as a Principal Premier Field Engineer at Microsoft Services, I am a regional lead for a proactive risk identification program called the SQLRAP. For over 7 years now we have evolved this from a manually conducted ‘Health Check’ offering to a highly automated...
10 Jan 2013
Extra T-SQL checks to complement SQL Upgrade Advisor
Background More and more customers are looking to upgrade to SQL Server 2012, which offers some exciting features like AlwaysOn Availability Groups, ColumnStore Indexes and much more. As part of my job in the Microsoft Premier Field Engineering team, we are called upon by customers to assess their readiness...
29 Nov 2012
Where can I download SQL 2012 Upgrade Advisor?
This post is a really quick one… Let’s say you are planning to check your SQL Server and T-SQL code for any potential breaking changes in SQL 2012. So you use Upgrade Advisor. Let’s say you want to download it, rather than get it from the installation media (the MSI can be found under \Servers\redist...
13 Oct 2012
AlwaysOn Availability Groups Connectivity Cheat Sheet
Today we were discussing the AlwaysOn connectivity options, and the various combinations therein of Readable Secondary setting and the connection strings became very complex. So I have summarized all the possible outcomes in the pivot tables below. For convenience, we have two tables. The first table...
13 Sep 2012
AlwaysOn Availability Groups Listener: connectivity details
Today in some discussions with my colleagues we were looking at the AlwaysOn Listener which allows SQL Server client applications to be abstracted from the details of the AlwaysOn Availability Group implementation. On the surface, The Listener essentially is a cluster resource pair – a Virtual...
12 Sep 2012
‘No Disks suitable for cluster disks’: one more possible cause
Today in the lab I was working on a test 3-node cluster. I was using Hyper-V for this. We normally use the iSCSI Software Target for testing, so I had set that up on a central VM and then published the target to all the VMs. The disks were seen in the disk management of Node1, and I brought them online...
29 May 2012
T-SQL Anti-pattern of the day: 'all-in-one' queries
Scenario A common requirement for enquiry queries on an OLTP database is to have search criteria which are very specific ('get me details for for OrderID = NNNN') and also the occasional reports which ask for all the orders ('get me all the orders, no questions asked'.) Here is a sample from AdventureWorks...
19 Dec 2008
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