When cardinality estimates are incorrect, the parallel threads doing the query work are given uneven amounts of work to do. This problem can lead to a seeming explosion in CXPACKET waits occurring and is commonly called skewed parallelism; Paul Randal explains how to check for it.
2015-09-09
3,469 reads
With another entry in his knee-jerk series on wait statistics, Paul Randal (@PaulRandal) explains CXPACKET and why it may or may not be a problem.
2015-07-13
3,180 reads
By Steve Jones
This is my last week of the year working (I guess I come back...
By Steve Jones
suente– n. the state of being so familiar with someone that you can be...
Anyone (everyone?) who has ever tried to learn a programming language knows that to...
I wrote a PowerQuery that parses a table from a PDF, and I want...
Comments posted to this topic are about the item Attaching an SQL Server database...
Comments posted to this topic are about the item Superseded Indexes
Which of these indexes is superseded by another?
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