[oracle@rhel63single ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Mon Apr 20 17:19:32 2015 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 1068937216 bytes Fixed Size 2260088 bytes Variable Size 612369288 bytes Database Buffers 448790528 bytes Redo Buffers 5517312 bytes Database mounted. Database opened. SQL> SQL> SQL> SQL> SQL> SQL> SQL> show parameter recyc NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ buffer_pool_recycle string db_recycle_cache_size big integer 0 recyclebin string on SQL> alter system set recyclebin=off; alter system set recyclebin=off * ERROR at line 1: ORA-02096: specified initialization parameter is not modifiable with this option SQL> alter system set recyclebin=off scope=both; alter system set recyclebin=off scope=both * ERROR at line 1: ORA-02096: specified initialization parameter is not modifiable with this option SQL> alter system set recyclebin=off scope=spfile; System altered. SQL>