CASE is SQLs answer to other programming languages IF-ELSE statement. If you need to test a condition and return a value CASE is the expression you need.
SQL Server Window Functions are incredibly powerful and allow us to access a total from another row and bucket data to show top performers.
Window Functions are incredibly powerful and allow us to see the rows in a table with a new column showing a running total, rank or moving average
Each of these Videos For Beginners is just long enough to get you started, with room to dive into the topic when you feel ready.
Time for some fun with SQL aggregate functions, and Mariah Carey
Your database doesn’t just contain your data. It also contains data about your data.
Before you rage quit or call in your DBA, check these things aren’t slowing down your SQL query. A few tweaks could be all you need to get things working.
A high-level overview of why your DBA needs to VACUUM your tables
This week I got to thinking, a ballet class is a good way to describe database concepts.