From ER diagrams to advanced SQL queries, mastering database design unlocks the ability to turn raw data into actionable insights. Practical labs, real-world projects, and optimization techniques help ...

AI is changing how developers and analysts write, debug, and optimize SQL — from natural language query generation to intelligent schema-aware assistance. Tools like Oracle APEX AI Assistant, Claude, ...

Microsoft introduced the Query Store when they released SQL Server 2016 and it can track statement performances, pinpoint queries and more. DBTA recently held a webinar focused on the new features and ...

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 ...

Overview:  BigQuery demand is rising in 2026 as more companies rely on cloud data platforms for decision-making.The right ...

On Jan. 23, 2007 the W3C granted Recommendation status to XQuery, the XML query language designed to do for Web services what SQL did for relational databases. XQuery allows you to work in one common ...

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 ...

Database performance impacts application tiers and user experience, as well as cloud costs. Yet, understanding database issues is challenging. Whether it's MySQL, PostgreSQL, or cloud databases like ...