If you no longer need a table, then you can delete it using SQL Developer. When you delete a table, the database deletes the data and dependent objects of the table (such as indexes), and removes the table from the data dictionary.
When you delete a table from a locally managed tablespace that is not the SYSTEM
tablespace, the database does not immediately reclaim the space associated with the table. Instead, it places the table and any dependent objects in the recycle bin. You can then restore the table, its data, and its dependent objects from the recycle bin if necessary. You can view the contents of the recycle bin by clicking Recycle Bin on the Tables page. Note that users can see only tables that they own in the recycle bin. See Oracle Database Administrator's Guide for more information about the recycle bin, including how to view, purge, and recover tables for which you are not the owner.
To delete a table:
See Also:
" About Tables"