Ars Technica

Correlated Subquery MUCH slower than same query using temp tables: Not enough RAM?

I wrote a query (with lots of help, see my painfully plentiful other threads) using a correlated subquery and it takes 5.78 seconds PER RECORD to return results. The SAME query, only I select the ...
Ars Technica

[SQL] Handle SELECT INTO #TempTable In IF/ELSE Statement

What the best way to work around this? I have the same SELECT statement but there are different criteria depending on the IF check. Well, if you happen to be using Sql Server you can do that sort of ...
Redmond Magazine

A Deep Dive into SQL Server 2022's Query Performance Features, Part 1

An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception. Database engines like SQL Server are incredibly complex ...