Part of the problem is that there is no magic bullet, and for almost every best practice, I can show you at least one exception. Typically, a developer finds his or her own favorite methods — though ...

Database applications have vastly improved in recent years, but despite our best efforts, they can still feel frustratingly slow. A report that is supposed to take minutes might instead (for unknown ...

Overview: Consistent SQL practice across varied platforms builds real job-ready confidence.Guided lessons help beginners, while timed challenges sharpen intervi ...

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 ...

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As a consultant whose job description includes putting out performance fires, I get to see a lot of problematic queries that can dramatically harm overall server performance and throughput. Wondering ...

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 ...