Erin Stellato discusses the performance impact of a predominately adhoc workload in SQL Server.
Paul White explains in detail the factors SQL Server considers when enabling minimal logging for inserts into an empty clustered table.
Itzik Ben-Gan resumes his blog series on T-SQL bugs, pitfalls, and best practices, treating an issue with correlated column references in subqueries.
Paul White explains in detail the factors SQL Server considers when enabling minimal logging for inserts into a table without a clustered index.
Guest author Dustin Dorsey shows how to prepare for a migration to Azure SQL Database by sending SentryOne monitoring data to the DTU calculator.
Paul White goes deep on grouped aggregation pushdown, and explains examples where this optimization is unsuccessful or simply not attempted, using the undocumented command DBCC CSINDEX.
Itzik Ben-Gan asks you to invest in SQL Server's future by voting for Row Pattern Recognition, a potential T-SQL syntax extension he deems the next step in the evolution of window functions.
Glenn Berry talks about the AMD EPYC CPUs now found in Azure Virtual Machines (in some regions) and their usage in balanced SQL Server workloads.
Paul White explains why the IGNORE_DUP_KEY index option on a clustered index can result in much poorer performance than for a nonclustered unique index.
Rob Farley talks about filtered indexes and when you might want to add filtered columns to the index definition.
Tim Radney explains some of the nuances of performance tuning your workloads in Azure SQL Database and Azure SQL Database Managed Instance.
Itzik Ben-Gan starts a new blog series on T-SQL bugs, pitfalls, and best practices, leading off with some common issues involving determinism.
Erin Stellato walks through a quick and simple way to use Extended Events and the new XEvent Profiler to review queries on your system.
Download the slide deck from Aaron Bertrand's latest presentation, "Fix Slow Queries. Fast."
Itzik Ben-Gan reviews the logic and performance of user submissions to a reader challenge involving joining between two tables based on closest match.