SELECT s.username, s.sid, s.serial#, s.sql_address, s.machine, s.program, su.tablespace, su.segtype, su.contentsFROM v$session s, v$sort_usage suWHERE s.saddr = su.session_addr;

SQL>Alter system kill session 'sid,serial#';

SQL>Alter tablespace TEMP coalesce;

SQL>select ts#, name from sys.ts$ ; TS# NAME ----------------------- 0 SYSYEM 1 RBS 2 USERS 3* TEMP 4 TOOLS 5 INDX 6 DRSYS

SQL>alter session set events 'immediate trace name DROP_SEGMENTS level 4'