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• New DMV… not yet

  - by Michael Zilberstein

  Downloaded and installed new toy: And while reading BOL, stumbled upon new extremely useful DMV: sys.dm_exec_query_profiles . This DMV enables DBA to monitor query progress while it is being executed. Counters in the DMV are per operation per thread. So we’ll be able to monitor in real time which thread (even for parallel processing) processes…

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• Delayed Durability–I start to like it!

  - by Michael Zilberstein

  In my previous post about the subject I’ve complained that according to BOL , this feature is enabled for Hekaton only. Panagiotis Antonopoulos from Microsoft commented that actually BOL is wrong – delayed durability can be used with all sorts of transactions, not just In-Memory ones. There is a database-level setting for delayed durability:…

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• sys.dm_exec_query_profiles – FAQ

  - by Michael Zilberstein

  As you probably know, this DMV is new in SQL Server 2014. It had been first announced in CTP1 but only in BOL . Now in CTP2 everyone can “play” with it. Since BOL is a little bit unclear (understatement detected), I’ve prepared this small FAQ as a result of discussion with Adam Machanic ( blog | twitter ) and Matan Yungman ( blog | twitter…

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• SQL Server 2014 – delayed transaction durability

  - by Michael Zilberstein

  As I’m downloading SQL Server 2014 CTP2 at this very moment, I’ve noticed new fascinating feature that hadn’t been announced in CTP1 : delayed transaction durability . It means that if your system is heavy on writes and on another hand you can tolerate data loss on some rare occasions – you can consider declaring transaction as…

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• Updatable columnstore index, sp_spaceused and sys.partitions

  - by Michael Zilberstein

  Columnstore index in SQL Server 2014 contains 2 new important features: it can be clustered and it is updateable. So I decided to play with both. As a “control group” I’ve taken my old columnstore index demo from one of the ISUG (Israeli SQL Server Usergroup) sessions. The script itself isn’t important – it creates partition…

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• New DMV–yes… no… that’s complicated

  - by Michael Zilberstein

  Remember the excitement about new sys.dm_exec_query_profiles DMV? It promised to be a gamechanger, providing query visibility at a runtime and easily extractable information about heavy iterators in execution plan. So it has been announced but missing. Now in CTP2 it is finally here. So, singing one of my favorite Queen…

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• Trace flags - TF 1117

  - by Damian

  I had a session about trace flags this year on the SQL Day 2014 conference that was held in Wroclaw at the end of April. The session topic is important to most of DBA's and the reason I did it was that I sometimes forget about various trace flags :). So I decided to prepare a presentation but I think it is a good idea…

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• SQL SERVER – SSMS: Memory Usage By Memory Optimized Objects Report

  - by Pinal Dave

  At conferences and at speaking engagements at the local UG, there is one question that keeps on coming which I wish were never asked. The question around, “Why is SQL Server using up all the memory and not releasing even when idle?” Well, the answer can be long and with the release of SQL Server 2014, this got even…

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