ORA-02421: missing or invalid schema authorization identifier

Question

Hello Evryone,
I am having a problem with schema user session. I am not able to change the schema even it exists.
SQL>ALTER session SET CURRENT_SCHEMA='QA'
Error report:
SQL Error: ORA-02421: missing or invalid schema authorization identifier
02421. 00000 -  "missing or invalid schema authorization identifier"
*Cause:    the schema name is missing or is incorrect in an authorization
           clause of a create schema statement.
*Action:   If the name is present, it must be the same as the current
           schema.
SQL>select username, account_status from DBA_USERS where username='QA';
USERNAME                       ACCOUNT_STATUS                  
QA                                        OPEN                            
SQL>SHOW user
USER is SYSTEM
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE    11.2.0.2.0      Production
TNS for HPUX: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production

Answer 1

Try it without the single quotes.
Best Regards
mseberg
Test on mine :
Release 11.2.0.1.0 - 64bit Productio
I get the same error with quotes
ERROR at line 1:
ORA-02421: missing or invalid schema authorization identifier
Edited by: mseberg on Aug 15, 2011 2:50 PM
So this and then the verify
ALTER SESSION SET CURRENT_SCHEMA=QAYou can verify using this :
select sys_context('USERENV','SESSION_SCHEMA') from dual;Edited by: mseberg on Aug 15, 2011 3:08 PM