It's not only Windows that has a recyclebin, Oracle too :-)
SQL> conn / as sysdba
Connected.
SQL> PURGE RECYCLEBIN;
Recyclebin purged.
SQL> select * from DBA_RECYCLEBIN;
OWNER OBJECT_NAME
------------------------------ ------------------------------
ORIGINAL_NAME OPERATION TYPE
-------------------------------- --------- -------------------------
TS_NAME CREATETIME DROPTIME
------------------------------ ------------------- -------------------
DROPSCN PARTITION_NAME CAN CAN RELATED BASE_OBJECT
---------- -------------------------------- --- --- ---------- -----------
PURGE_OBJECT SPACE
------------ ----------
ICO BIN$1UcUVuC1XO3gNAgAIPzwew==$0
HUGO DROP TABLE
USERS 2004-03-10:14:23:58 2004-03-10:14:31:35
OWNER OBJECT_NAME
------------------------------ ------------------------------
ORIGINAL_NAME OPERATION TYPE
-------------------------------- --------- -------------------------
TS_NAME CREATETIME DROPTIME
------------------------------ ------------------- -------------------
DROPSCN PARTITION_NAME CAN CAN RELATED BASE_OBJECT
---------- -------------------------------- --- --- ---------- -----------
PURGE_OBJECT SPACE
------------ ----------
1536397 YES YES 12004 12004
12004 128
OWNER OBJECT_NAME
------------------------------ ------------------------------
ORIGINAL_NAME OPERATION TYPE
-------------------------------- --------- -------------------------
TS_NAME CREATETIME DROPTIME
------------------------------ ------------------- -------------------
DROPSCN PARTITION_NAME CAN CAN RELATED BASE_OBJECT
---------- -------------------------------- --- --- ---------- -----------
PURGE_OBJECT SPACE
------------ ----------
ICO BIN$1UcUVuC2XO3gNAgAIPzwew==$0
HUGO DROP TABLE
HUGO 2004-03-10:14:37:54 2004-03-10:14:39:58
OWNER OBJECT_NAME
------------------------------ ------------------------------
ORIGINAL_NAME OPERATION TYPE
-------------------------------- --------- -------------------------
TS_NAME CREATETIME DROPTIME
------------------------------ ------------------- -------------------
DROPSCN PARTITION_NAME CAN CAN RELATED BASE_OBJECT
---------- -------------------------------- --- --- ---------- -----------
PURGE_OBJECT SPACE
------------ ----------
1537569 YES YES 12089 12089
12089 128
SQL> PURGE DBA_RECYCLEBIN;
DBA Recyclebin purged.
SQL> select * from DBA_RECYCLEBIN;
no rows selected
SQL>