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1.cmd 2.输入set ORACLE_SID=你想进入的数据库的那个sid 3.输入 sqlplus /nolog 4.将数据库启动到RESTRICTED模式下做字符集更改： SQL> conn /as sysdba Connected. SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount ORACLE instance started. Total System Global Area 236000356 bytes Fixed Size 451684 bytes Variable Size 201326592 bytes Database Buffers 33554432 bytes Redo Buffers 667648 bytes Database mounted. SQL> ALTER SYSTEM ENABLE RESTRICTED SESSION; System altered. SQL> ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0; System altered. SQL> ALTER SYSTEM SET AQ_TM_PROCESSES=0; System altered. SQL> alter database open; Database altered. SQL> ALTER DATABASE CHARACTER SET ZHS16GBK; ALTER DATABASE CHARACTER SET ZHS16GBK * ERROR at line 1: ORA-12712: new character set must be a superset of old character set
提示我们的字符集：新字符集必须为旧字符集的超集，这时我们可以跳过超集的检查做更改： SQL> ALTER DATABASE character set INTERNAL_USE ZHS16GBK; Database altered. SQL> select * from v$nls_parameters; 略 19 rows selected. 重启检查是否更改完成： SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup ORACLE instance started. Total System Global Area 236000356 bytes Fixed Size 451684 bytes Variable Size 201326592 bytes Database Buffers 33554432 bytes Redo Buffers 667648 bytes Database mounted. Database opened. SQL> select * from v$nls_parameters;
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发表于 2020-9-15 00:08:52
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