可以,但是只能由子集向超集改,象下面
US7ASCII -》WE8ISO8859P1 Yes
US7ASCII -》ZHS16GBK Yes
US7ASCII -》UTF8 Yes
具体步骤为:
SQL> STARTUP MOUNT;
SQL> ALTER SYSTEM ENABLE RESTRICTED SESSION;
SQL> ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0;
SQL> ALTER DATABASE OPEN;
SQL> ALTER DATABASE CHARACTER SET <new_character_set_name>;
SQL> SHUTDOWN IMMEDIATE; -- or NORMAL
SQL> STARTUP;
US7ASCII -》WE8ISO8859P1 Yes
US7ASCII -》ZHS16GBK Yes
US7ASCII -》UTF8 Yes
具体步骤为:
SQL> STARTUP MOUNT;
SQL> ALTER SYSTEM ENABLE RESTRICTED SESSION;
SQL> ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0;
SQL> ALTER DATABASE OPEN;
SQL> ALTER DATABASE CHARACTER SET <new_character_set_name>;
SQL> SHUTDOWN IMMEDIATE; -- or NORMAL
SQL> STARTUP;
解决方案 »
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