Original source here
with fs
as
(
select database_id, type, size * 8.0 / 1000 size
from sys.master_files
)
select
name,
(select sum(size) from fs where type = 0 and fs.database_id = db.database_id) DataFileSizeMB,
(select sum(size) from fs where type = 1 and fs.database_id = db.database_id) LogFileSizeMB
from sys.databases db
However not all users have these permissions, script below to check a single table across multiple dbs.
