oracle由于中文字符集导致数据丢失

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cmd窗口下

• sqlplus sys/sys@orcl as sysdba
• 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 ZHS16GBK;
• SQL>shutdown immediate;
• SQL>STARTUP;

开启监听和服务cmd

• lsnrctl start
• net start OracleServiceORCL