In two previous articles (part 1 and part 2), I showed some practical ways to use a SQL Server calendar table to solve business day and date range problems. Next, I’ll demonstrate how you can use this table to solve scheduling problems, like environment-wide server patch management.
When you have a handful of servers, managing patching is straightforward. When you have hundreds, it gets more complicated to balance keeping everything in sync and not spending all of your time organizing and performing patching.
This is a concrete example of where calendar tables can make life a lot easier.