sqlplus /nolog conn /as sysdba shutdown immediate; startup mount; ALTER SESSION SET SQL_TRACE=TRUE; ALTER SYSTEM ENABLE RESTRICTED SESSION; ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0; ALTER SYSTEM SET AQ_TM_PROCESSES=0; ALTER DATABASE OPEN; set linesize 120; alter database character set zhs16gbk;
RROR at line 1:
ORA-12712: new character set must be a superset of old character set
ALTER DATABASE character set INTERNAL_USE zhs16gbk;