We have found out that we need to decommission our sql server box. Unfortunately, there is the fear that we may not be able to repoint (change connection strings) on all of our existing applications as some of these may be hardcoded. Would like to stand up a box with the same name,or create an alias.
Would like to know if anyone has tried to use a dns entry repoint to a new SQL Server. Again, the idea here is we will hopefully not have to touch any code or connection strings. This would most likely be going from Microsoft SQL Server 2008 R2 (SP2) - 10.50.4000.0 (X64)
Enterprise Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1) to SQL Server 2012.
If anybody could provide a list of steps to do it would be greatly appreciated.
Thank you in advance,