PL/SQL database character set(AL32UTF8) and Client character set(ZHS16GBK) are different

我就是我 2023-05-30 04:56 9阅读 0赞

# [PL/SQL database character set(AL32UTF8) and Client character set(ZHS16GBK) are different][PL_SQL database character set_AL32UTF8_ and Client character set_ZHS16GBK_ are different] #

转自：[https://www.cnblogs.com/ZXdeveloper/p/6860858.html][PL_SQL database character set_AL32UTF8_ and Client character set_ZHS16GBK_ are different]

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启动PL/SQL Developer 报字符编码不一致错误

Database character set (AL32UTF8) and Client character set (ZHS16GBK) are different.  
Character set conversion may cause unexpected results.

Note: you can set the client character set through the NLS\_LANG environment variable or the NLS\_LANG registry key in  
HKEY\_LOCAL\_MACHINE\\SOFTWARE\\ORACLE\\KEY\_Oracle\_10g.

**1、打开注册表,通过命令regedit。找到到文中提示的路径，发现NLS\_LANG键的值为:**

SIMPLIFIED CHINESE\_CHINA.ZHS16GBK

修改为：SIMPLIFIED CHINESE\_CHINA.AL32UTF8即可

**2、还有一种可能是由于安装11g的时候没选择自定义安装造成的**

SIMPLIFIED CHINESE\_CHINA.ZHS16GBK 包含 AMERICAN\_AMERICA.AL32UTF8.  
这可是个麻烦事，不是改客户端字符集的问题。要改数据库的字符集：  
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 AL32UTF8;  
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 AL32UTF8;  
\--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> select \* from v$nls\_parameters;

SQL> shutdown immediate;

SQL> startup

SQL> select \* from v$nls\_parameters;  
以后安装oracle11g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

[PL_SQL database character set_AL32UTF8_ and Client character set_ZHS16GBK_ are different]: https://www.cnblogs.com/ZXdeveloper/p/6860858.html
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