Your query is running slow, have you checked your indexes?
Joining tables is the first big learning curve after getting your head around SQL basics.
CTEs are underrated compared to the subquery. Here’s why I prefer to use CTEs when building SQL queries.
VLOOKUP lets Excel do the hard work of matching up a value from one spreadsheet to another. It saves time and is an essential Excel tool.
SSMS is highly customisable, here’s 10 ways to make it work best for you.
When working with data in relational databases there are some key concepts to understand