Time goes by, and today I’m very proud to announce all upcoming SQLpassion workshops for the second half of the year 2017: SQL Server Query Tuning Workshop November 6 – 10 in Antwerpen/Belgium SQL Server Performance Tuning Workshop November 20 – 24 in Zurich/Switzerland December 4 – 8 in Frankfurt/Germany Read here how it feels …
Today I’ve announced my SQLpassion Online Trainings for July 2017. On July 4 I’m doing again a free webcast from 19:00 – 20:00 (GMT + 1), where I will talk about how to troubleshoot Latches in SQL Server. And on July 5 I’m running again a one-day long webinar about how to troubleshoot SQL Server …
Last week during my SQL Server Performance Tuning Workshop I got quite an interesting question regarding Bookmark Lookup Operations against Clustered Indexes: “How can I find out on which Clustered Index I have the most Lookup Operations performed?” The great thing about SQL Server is that SQL Server logs a lot of information in the …
I have previously ranted a few times about why a RAID 5 is a terrible idea for storing your Transaction Log, and why it is also very risky to store your data files on a RAID 5 volume. But in today’s blog post I want to show you how the RAID 5 parity information is …
As you might know, SQL Server uses internally Statistics to estimate how many rows are returned from a specific query. That process is called the Cardinality Estimation. Based on the output from the Cardinality Estimation the Query Optimizer generates an Execution Plan, which is cached and finally executed. In today’s blog posting I’m going to talk …
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