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 ...

We’ve all done it. We needed to pull data out of an SQL database, and the query we needed to pull out data was a complex query with multiple table joins, complex filter criteria, and sophisticated ...

SQL Server 2016 and Azure SQL Database both give you tables that automatically keep track of the history of your data. Here's how to retrieve that historical data. In an earlier column, I showed how ...