database_size:  902.25 MB

Unallocated space: 47.77 MB

reserved:  106992 KB

data:   71408 KB

index_size:  33792 KB

unused:   1792 KB

I realize that (unallocated space)+(reserved)+(data)+(index_size)+(unused) gives me the total size of the datafile

Is the above maths is correct ?

I am not able to...