Linux下修改Oracle數據庫字符集命令

常見情形:從服務器備份Oracle數據庫後再到本地機器上還原Oracle數據庫的時候經常會碰見數據庫字符編碼不一致的情況，可以用以下命令來修改本地的Oracle數據庫字符編碼，然後順利還原Oracle數據庫到本地機器上

操作指令：

SQL> conn /as sysdba;

SQL>select userenv('language') from dual;

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 INTERNAL_USE US7ASCII;

SQL>SHUTDOWN IMMEDIATE;

SQL>STARTUP;

SQL>select userenv('language') from dual;

常見的Oracle字符集有ZHS16GBK、AL32UTF8、US7ASCII等?