To Rename Physical Filename of a Database

--set database in single user mode alter database databasename set single_user with rollback immediate

--set database offline alter database databasename set offline

--rename the physical file names of the target database

--update the system catalog where the older file name is present alter database databasename modify file (name = 'logicaldatabasefilename', filename = 'path') alter database databasename modify file (name = 'logicaldatabaselogfilename', filename = 'path')

--bring database online alter database databasename set online

--set database in multi user mode alter database databasename set multi_user