Overview: SQL remains a core skill for data management across industries in 2026Free courses build fundamentals while paid ...

One of the most common problems when running SQL Servers is slow queries. The help desk or database team usually hears that described as the application is slow or ...

SQL remains the backbone of enterprise data access. Despite the rise of dashboards, semantic layers, and AI-driven analytics, ...

The ability to write parts of SQL queries in natural language will help developers speed up their work, analysts say.

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 ...

Using the External Data Connection feature in Excel, you can acquire information from external sources, such as Access and SQL Server. The data remains stored at its original source, but the data ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...