SQL Server case insensitive collation

Question

What are the benefits/drawbacks of using a case insensitive collation in SQL Server (in terms of query performance)?

I have a database that is currently using a case-ins

Answer 1

I would say the biggest drawback to changing to a case sensitive collation in a production database would be that many, if not most, of your queries would fail because they are currently designed to ignore case.

I've not tried to change collation on an existing datbase, but I suspect it could be quite time consuming to do as well. You probably will have to lock your users out completely while the process happens too. Do not try this unless you have thoroughly tested on dev.