Greetings, I'm running Oracle 10.2.0.4.0EE on RHEL4. Following Metalink note 273276.1 I resized the temporary tablespace in a test database. However, I was not paying attention and issued the command SQL> alter database default temporary tablespace <new_temp_tablespace>; although the temporary tablespace I was resizing was not the default temporary tablespace, the system tablespace was. Upon attempting to again make the system tablespace the default temporary tablespace I receive an ORA-12901 error... SQL> alter database default temporary tablespace system; alter database default temporary tablespace system; * ERROR at line 1: ORA-12901: default temporary tablespace must be of TEMPORARY type My question is are there potential problems with the system tablespace *not* being the default temporary tablespace? If so what are the potential problems and is there a way to restore the system tablespace as the default temporary tablespace short of rebuilding the database? Thanks. Bill Wagman Univ. of California at Davis IET Campus Data Center wjwagman@xxxxxxxxxxx (530) 754-6208 -- //www.freelists.org/webpage/oracle-l