Oracle Database Discussions

Oracle 10g. I try to shrink table using alter table test_extents enable row movement; alter table test_extents shrink space; alter table test_extents disable row movement; But these commands didn't reorganize table that much. Why?

I know I can export data, truncate table, then import; OR I move all objects to new tablespace, then move them back.

Which way is the best way in the real world from DBA point view?

Thanks

S.