oracle 10g 数据库字符集更改

boisheng

1.更改数据库字符集为GBK
SHUTDOWN IMMEDIATE;
STARTUP MOUNT EXCLUSIVE;
ALTER SYSTEM ENABLE RESTRICTED SESSION;
ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0;
ALTER SYSTEM SET AQ_TM_PROCESSES=0;
ALTER DATABASE OPEN;
ALTER DATABASE NATIONAL CHARACTER SET AL16UTF16; 更改国际字符集
ALTER DATABASE CHARACTER SET ZHS16GBK; 更改本地字符集
SHUTDOWN IMMEDIATE;
STARTUP ;

2.如果错误信息，请对照一下信息
如果提示：
    ORA-12717: Cannot issue ALTER DATABASE NATIONAL CHARACTER SET when NCLOB, NCHAR
or NVARCHAR2 data exists
则更改使用以下语句:
    ALTER DATABASE NATIONAL CHARACTER SET INTERNAL_USE AL16UTF16;

如果提示：
    ORA-12712: new character set must be a superset of old character set
则更改使用以下语句:
    ALTER DATABASE character set INTERNAL_USE ZHS16GBK;

如果提示：
    ORA-12721: operation cannot execute when other sessions are active
则更改使用以下语句:
    SHUTDOWN IMMEDIATE;
    STARTUP MOUNT EXCLUSIVE;

如果提示：
    ORA-01109: database not open
则更改使用以下语句:
    ALTER DATABASE OPEN;

如果提示：
    ORA-12719: operation requires database is in RESTRICTED mode
则更改使用以下语句:
    ALTER SYSTEM ENABLE RESTRICTED SESSION;


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