Jon Shaulis looks into how many sequences you can have on a SQL Server instance:
I thought this was an interesting question, but it makes sense to have some concern about it. If you are using Sequences over identity inserts, this typically means you need more control over how those numbers are handled from creation to archive. So what if you need a lot of different Sequences stored on your server to handle your needs? Will you run out of Sequence objects that you can create?
This information is not intuitively simple to find, this is one of those times where you need to read various articles and connect the dots. Let’s start simple
This is one of those cases where Swart’s 10% Rule comes into play.