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Channel: Performance – Dave Ballantyne's Blog
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Reading a snapshot – Are there performance implications ?

My present role is to look at the performance of a large datawarehouse load.  This is right up my alley,  and I have be playing with all manner of performance tuning fun, indexing, execution plans,...

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Reasons why your plans suck : No 56,536

I have been working with SQL server for more years than I really care to mention and like to think that I am now quite comfortable with the internals, specifically the Query Optimizer. Every so often...

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Please please tell me now…

.. Is there something I should know,  sang Duran Duran many moons ago when I was young and before I knew that query optimization was even a thing.  But,  it is quite a handy little line to keep in mind...

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SQL Saturday 496 Exeter – PreCon Agenda

Hi Unfortunately due to matters outside of my control, SQL Saturday 502 in Edinburgh has been cancelled, I would like to thank the team though for selecting my pre-con.  Let me know if you would have...

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My favourite wait state– ASYNC_NETWORK_IO

Sometimes it does feel that a problem is a database problem until proven otherwise.  When this does occur I have had to put a lot of time and effort into demonstrating the hows and whys.  One of the...

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