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 ...

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 ...

In this post, we will show you how to split Data into Rows using Power Query. While exporting data from other systems or sources, you may encounter situations when the data is stored in a format where ...

Updating fact rows inside a star schema set of tables is never a best practice. Even so, some organizations travel down this path. Consultants occasionally will go so far as to embrace the idea of ...