oracle字符编码修改

1. 查看原编码

select * from nls_database_parameters where parameter ='NLS_CHARACTERSET';

2. 修改成AL32UTF8

$sqlplus /nolog
sql>conn /as sysdba;
sql>shutdown immediate;

mount数据库
sql>startup mount;

设置session
SQL>ALTER SYSTEM ENABLE RESTRICTED SESSION;
SQL> ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0;
SQL> ALTER SYSTEM SET AQ_TM_PROCESSES=0;

启动数据库
SQL>alter database open;

修改字符集
SQL>ALTER DATABASE character set INTERNAL_USE AL32UTF8;

关闭，从新启动
SQL>shutdown immediate;
SQL> startup