修改oracle 10g的字符集
修改数据库字符集为:ZHS16GBK 查看服务器端字符集 SQL > select * from V$NLS_PARAMETERS; 修改: $sqlplus /nolog SQL>conn / as sysdba 若此时数据库服务器已启动,则先执行 SHUTDOWN IMMEDIATE 命 令关闭数据库服务器,然后执行以下命令:
SQL>shutdown immediate SQL>STARTUP MOUNT SQL>ALTER SYSTEM ENABLE RESTRICTED SESSION; SQL>ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0; SQL>ALTER SYSTEM SET AQ_TM_PROCESSES=0; SQL>ALTER DATABASE OPEN; SQL>ALTER DATABASE CHARACTER SET ZHS16GBK
ERROR at line 1: ORA-12721: operation cannot execute when other sessions are active 或 ORA-12712: new character set must be a superset of old character set
若出现上面的错误,使用下面的办法进行修改,使用INTERNAL_USE可以跳过超集的检查:
SQL>ALTER DATABASE CHARACTER SET INTERNAL_USE ZHS16GBK; SQL>SHUTDOWN IMMEDIATE SQL>STARTUP
查看字符集
select * from nls_database_parameters where parameter like '%SET%';