--===========================================================
--不能修改实例名称,但可以修改服务器名称
DECLARE
@serverName NVARCHAR(200);
SELECT @serverName=@@SERVERNAME;
EXEC sp_dropserver @server = @serverName;
SET @serverName =
CAST(SERVERPROPERTY(‘servername‘) AS sysname);
SELECT @serverName
EXEC
sp_addserver @server=@serverName, @local=‘LOCAL‘;
原文:http://www.cnblogs.com/TeyGao/p/3524325.html