How deallocate unused in partition

Question

dear all,
In order to save space in my database, my steps to drop a table is:
1.- truncate table TABLE_NAME reuse storage;
2.- alter table TABLE_NAME deallocate unused ;
3.- drop table TABLE_NAME ;
This is ok.
But my question is:
* How can i proceed if my table have partitions? *
I think that the syntax could be:
1.- alter table TABLE_NAME truncate partition PARTITION_93 reuse storage;
2.- ALTER TABLE TABLE_NAME deallocate unused ; This is my doubt
3.- ALTER TABLE TABLE_NAME DROP PARTITION PARTITION_93;
In step 2, how can i say that must to work in partition_93 ???
thanks to all.

Answer 1

The space allocated to the table,gets released once its dropped (or truncated.In truncate the tables structure stays).What is the need of 1st and 2nd step, when finally the table is dropped? correct me, might be i didn't understand your procedure for releasing/saving space.
Anand