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 ...

Have you ever spent hours fine-tuning a Power Query workflow, only to have it break because a column name changed? It’s a frustratingly common scenario for anyone working with dynamic or external data ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and querying ...