It's possible to rename the logical names of MS-SQL databases through the SQL-prompt (osql.exe).
Log in to your database using osql:
> osql -S SERVERINSTANCE -d MyDB -U sa
First, query the current logical names; you will need them in order to rename them.
1> SELECT * FROM sysfiles 2> GO fileid groupid size maxsize growth status perf name filename 1 1 106224 -1 10 1048578 0 OldName_Data D:\SQL2000\Data\MyDB_Data.mdf 2 0 128 -1 10 1048642 0 OldName_Log D:\SQL2000\Data\MyDB_Log.ldf
The name column specifies the logical names. Use the following SQL statement to rename them.
1> ALTER DATABASE [MyDB] MODIFY FILE (NAME = 'OldName_Data', NEWNAME = 'NewName_Data') 2> ALTER DATABASE [MyDB] MODIFY FILE (NAME = 'OldName_Log', NEWNAME = 'NewName_Log') 3> GO
You can rename both the data files and log files. If the rename was succesful, a message will tell you so.