Through the many changes in IT over the years, one constant has always been a concern for performance. With database systems there is especially true. Even with the many advances in relational ...

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 ...

If your business uses relational databases to store data, it helps to use the SQL SELECT command with the INTO clause to create new tables from query results. This method isn't ANSI-standard SQL, but ...

I've said it before and I'll say it again: If you want to speed up your application, don't look at your code, look at your data access. The two slowest things you can do in application development are ...

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 ...