oracle修改字符集

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oracle修改字符集

查看oracle服务端编码：select * from sys.nls_database_parameters;
查看client编码：select * from sys.nls_session_parameters;

修改客户端编码：

翻开运转器进入注册表编辑
运转–》regedit
找到HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE/KEY_OraDb10g_home1的变量NLS_LANG的值SIMPLIFIED CHINESE_CHINA.ZHS16GBK改动成以下的值SIMPLIFIED CHINESE_CHINA.AL32UTF8

服务端：

在你的listener配置文件中增加实例信息

SID_LIST_LISTENER =    (SID_LIST =      (SID_DESC =         (SID_NAME = PLSExtProc)         (ORACLE_HOME = F:\oracle\product\10.1.0\Db_1)         (PROGRAM = extproc)       )      (SID_DESC =        (SID_NAME = orcl)        (ORACLE_HOME = F:\oracle\product\10.1.0\Db_1)      )    )

修改oracle字符集

SQL> startup mount;SQL> alter system enable restricted session;SQL> alter system set job_queue_processes=0;SQL> alter database open;  www.2cto.com  SQL> alter database character set internal_use UTF8;SQL> shutdown immediate;SQL> startuporacle查看字符集select userenv('language') from dual;

Oracle10G,xe修改可以采用下面的方法

插入语:本人使用的oracle数据就是Oracle10G,因为误操作更改了Oracle数据库的编码,致使项目工程在启动时大量报错.同时使用PLSQL工具时,点击table时同样报错,出现很多问号.在使用sql developer工具时,同样无法看到表的内容.但在控制台查询时,却可以查到表的内容,但查询出来的中文内容却全是乱码,显示为问号.

通过select userenv('language') from dual;查看oracle字符集看到,字符集为US7SCII.进一步确认问题的发生,应该就是因为字符集的问题引起,遂尝试下列方式,最终修复问题.

connect system as sysdba ;shutdown immediate ;startup mount ;alter system enable restricted session ; alter system set JOB_QUEUE_PROCESSES=0; alter system set AQ_TM_PROCESSES=0; alter database open ; alter database character set internal_use ZHS16GBK ; shutdown immediate ;startup ;

老版本可以参考

STARTUP MOUNT; ALTER SYSTEM ENABLE RESTRICTED SESSION; ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0; ALTER SYSTEM SET AQ_TM_PROCESSES=0; ALTER DATABASE OPEN; ALTER DATABASE CHARACTER SET UTF8; ALTER DATABASE national CHARACTER SET UTF8; SHUTDOWN IMMEDIATE; STARTUP;  www.2cto.com  Database character set (UTF8) 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 inHKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\KEY_OraDb11g_home1.

1)C:\Documents and Settings\Administrator>set NLS_LANG=american_america.AL32UTF82)C:\Documents and Settings\Administrator>set NLS_LANG=SIMPLIFIED CHINESE_CHINA.ZHS16GBKSIMPLIFIED CHINESE_CHINA.ZHS16GBK

注册表  HKEY_LOCAL_MACHINE->software->oracle-》key_oradb11g_home1左侧的NLS_Lang

SIMPLIFIED CHINESE_CHINA.ZHS16GBK与SIMPLIFIED CHINESE_CHINA.AL32UTF8

原文链接:

http://www.2cto.com/database/201205/133453.html

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