Let's break down when it's ideal to use the NOLOCK hint and when you should never use it. As a consultant, I work on wide swaths of database systems, which means I get to see many, many SQL statements ...
First introduced in SQL Server 2012, columnstore indexes can give you major performance gains -- provided you have the right workloads. Here's how columnstore indexes work and what types of data work ...
A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...
The Execute Direct Query event has a duration of 2.1 seconds – meaning that again there is a gap to be explained, a gap where ...
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