select
d.name as 'database',
mdf.physical_name as 'mdf_file',
ldf.physical_name as 'log_file'
from sys.databases d
inner join sys.master_files mdf on
d.database_id = mdf.database_id and mdf.[type] = 0
inner join sys.master_files ldf on
d.database_id = ldf.database_id and ldf.[type] = 1