Dropping a 700 GB Tablespace in a Test Database Efficiently ?

Folks  

An internal Test Database has 1 of it's Tablespace's of 700 GB which in turn Contains only 1 Table. What is the ideal Approach to DROP the same?  

Personally I think the following approach is most efficient:-

SQL> DROP TABLESPACE <Name> INCLUDING CONTENTS AND DATAFILES;  

OTHER possible Approaches:-  

SQL> TRUNCATE TABLE <Name>;

SQL> DROP TABLE <Name> PURGE; followed by the Command SQL> DROP TABLESPACE <Name> INCLUDING CONTENTS AND DATAFILES;  

Database Oracle Version 10gR2  

Seek Advice folks  

Thanks indeed      

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