Changing SQL Server collation to case insensitive from case sensitive?

You basically need to run the installation again to rebuild the master database with the new collation. You cannot change the entire server’s collation any other way.

See:

Update: if you want to change the collation of a database, you can get the current collation using this snippet of T-SQL:

SELECT name, collation_name 
FROM sys.databases
WHERE name="test2"   -- put your database name here

This will yield a value something like:

Latin1_General_CI_AS

The _CI means “case insensitive” – if you want case-sensitive, use _CS in its place:

Latin1_General_CS_AS

So your T-SQL command would be:

ALTER DATABASE test2 -- put your database name here
   COLLATE Latin1_General_CS_AS   -- replace with whatever collation you need

You can get a list of all available collations on the server using:

SELECT * FROM ::fn_helpcollations()

You can see the server’s current collation using:

SELECT SERVERPROPERTY ('Collation')

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