Oracle PL/SQL Tutorial/SQL PLUS Session Environment/recyclebin

A dropped table is preserved in the recycle bin until purged.

SQL>
SQL>
SQL> create table myTable (col1 number primary key);
Table created.
SQL>
SQL> drop table myTable;
Table dropped.
SQL>
SQL> select object_name, original_name, type from recyclebin;
no rows selected
SQL>
SQL> purge recyclebin;
Recyclebin purged.
SQL>
SQL> select object_name, original_name, type from recyclebin;
no rows selected
SQL>
SQL>
SQL>

purge recyclebin

SQL>
SQL> create table history
  2  ( empno      NUMBER(4)
  3  , beginyear  NUMBER(4)
  4  , begindate  DATE
  5  , enddate    DATE
  6  , deptno     NUMBER(2)
  7  , msal       NUMBER(6,2)
  8  , comments   VARCHAR2(60)
  9  ) ;
Table created.
SQL>
SQL>
SQL>
SQL> insert into history values (9,2000,date "2000-01-01",date "2002-01-02",40, 950,"history for 9");
1 row created.
SQL> insert into history values (8,2000,date "2000-01-02", NULL       ,20, 800,"");
1 row created.
SQL> insert into history values (7,1988,date "2000-01-06",date "2002-01-07",30,1000,"");
1 row created.
SQL> insert into history values (6,1989,date "2000-01-07",date "2002-01-12",30,1300,"");
1 row created.
SQL> insert into history values (5,1993,date "2000-01-12",date "2002-01-10",30,1500,"history for 5");
1 row created.
SQL> insert into history values (4,1995,date "2000-01-10",date "2002-01-11",30,1700,"");
1 row created.
SQL> insert into history values (3,1999,date "2000-01-11", NULL       ,30,1600,"");
1 row created.
SQL> insert into history values (2,1986,date "2000-01-10",date "2002-01-08",20,1000,"history for 2");
1 row created.
SQL> insert into history values (1,1987,date "2000-01-08",date "2002-01-01",30,1000,"history for 1");
1 row created.
SQL> insert into history values (7,1989,date "2000-01-01",date "2002-05-12",30,1150,"history for 7");
1 row created.
SQL>
SQL>
SQL>
SQL>
SQL> purge recyclebin;
Recyclebin purged.
SQL>
SQL>
SQL> select object_name, original_name, droptime
  2  from   recyclebin;
no rows selected
SQL>
SQL> flashback table history to before drop;
flashback table history to before drop
*
ERROR at line 1:
ORA-38305: object not in RECYCLE BIN

SQL>
SQL>
SQL> drop table history;
Table dropped.