select  t.name as TableName, Min(t.create_date) as CreateDate, ds.name as FileGroupName, SUM(u.total_pages) * 8 / 1024 as SizeMB 
from sys.tables as t
inner join sys.partitions as p on t.object_id = p.object_id
inner join sys.allocation_units as u on p.partition_id = u.container_id
inner join sys.data_spaces as ds on u.data_space_id = ds.data_space_id
group by t.name, ds.name
order by SizeMB desc

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