The mystery of the NULL bitmap mask

In today’s weblog post I want to talk about the NULL bitmap mask and some mysteries that you can encounter with it. The NULL bitmap mask encodes at the Storage Engine level which column stores a NULL value and which not. It’s a simple bitmap mask, where a set bit ...

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Replaying workloads with the RML Utilities

In today’s weblog posting I want to talk about replaying SQL Server workloads with the RML Utilities. RML Utilities stands for Replay Markup Language Utilities and are provided by Microsoft as a free download. You can download them here: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=7EDFA95A-A32F-440F-A3A8-5160C8DBE926. I have first encountered the RML Utilities when I read ...

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My SQLPASS session

Yesterday we got confirmation from SQLPASS if our submitted sessions for the upcoming SQLPASSS summit in Seattle (October 11 – 14) were accepted. I’m very lucky to announce that my submitted session “Advanced SQL Server 2008 Troubleshooting” made it to the summit as a regular session (75min)! Here’s the abstract ...

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SQLbits recap

It’s already a long time ago, since I spoke at SQLbits (first week of April), but yesterday the speakers got their session evaluation, and I’m very proud about the results of the 2 sessions that I have done at SQLbits: Service Broker: Message in a Bottle SQL Server 2008 Database ...

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