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Oracle 11g更改字符集AL32UTF8为ZHS16GBK

Jun 07, 2016 pm 05:00 PM

Oracle 9i更改字符集AL32UTF8为ZHS16GBKSQLgt; conn /as sysdba SQLgt; shutdown immediate; SQLgt; startup mount SQLgt; A

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Oracle 11g更改字符集AL32UTF8为ZHS16GBK

[日期:2011-04-26] 来源:Linux社区  作者:qzc711 [字体:]

Oracle 9i更改字符集AL32UTF8为ZHS16GBK
SQL> conn /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 ZHS16GBK;
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;
--我们看到这个过程和之前ALTER DATABASE CHARACTER SET操作的内部过程是完全相同的,也就是说INTERNAL_USE提供的帮助就是使Oracle数据库绕过了子集与超集的校验.
SQL> shutdown immediate;
SQL> startup
以后安装oracle的时候记得选择自定义安装,把这个字符集的事情事先弄好。

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