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  • ORACLE11G 字符集更改(这里更改为AL32UTF8)

    更改步骤:1、用sysdba角色用户登录sqlplus: 命令行输入:sqlplus sys as sysdba

                   2、输入口令,进入sqlplus:sql>---

                   3、依次键入下面的命令行执行:

                        shutdown immediate;
                        STARTUP MOUNT;
                        ALTER SESSION SET SQL_TRACE=TRUE;
                        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 AL32UTF8;
                        ALTER SESSION SET SQL_TRACE=FALSE;
                        shutdown immediate;
                        startup;

    风险分析:执行上述命令,有可能造成数据库中已有数据混乱的情况,所以在进行操作前,

                   要进行数据库的备份操作;

    结果查看:察看 NLS_LANG 信息:
                   SELECT parameter, value FROM v$nls_parameters WHERE parameter LIKE '%CHARACTERSET';
                  NLS_LANG 信息已经变成:


                  NLS_CHARACTERSET
                  AL32UTF8
                  NLS_NCHAR_CHARACTERSET
                  AL16UTF16

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  • 原文地址:https://www.cnblogs.com/GeneralXU/p/1950448.html
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