Data analysis is no longer a specialist skill reserved for analysts. It now supports finance, trading, ecommerce, marketing, ...

When writing complex aggregations in SQL, you will encounter situations where you want to further process data that has already been aggregated. There are two ways to do this: subqueries and CTEs ...

Programming languages shape how software, apps, and websites are built, making them one of the most important skills in the modern digital world. With industries shifting toward automation, AI tools, ...

Prepare for the SQL Server 2025 era with a sequenced strategy for modernisation, optimisation and protection across architecture, operations and enterprise risk. Every major data-platform release ...

Leonardo Boscaro, EMEA Sales Leader, Nutanix Database. In most large enterprises, the greatest concentration of operational complexity sits quietly inside SQL Server estates. Hundreds, and in some ...

Consistent SQL practice across varied platforms builds real job-ready confidence. Guided lessons help beginners, while timed challenges sharpen interview performance. Real datasets improve practical ...

Self-funded student: register by the 10th of the month, start on the 1st of the next. Funded student: please check the next enrolment deadline and course start date. Students who are concerned about ...

For developers working with SQL Server, few performance tuning techniques are as essential--or as frequently misunderstood--as indexing. Done right, indexing can drastically improve application ...

Managing SQL Server across hybrid and multi-cloud environments has long posed a challenge for database administrators. With data sprawled across on-premises infrastructure, cloud platforms, and edge ...