更改Oracle数据库的编码格式,解决导入时ORA-12899错误

imp导入数据到ORACLE遭遇ORA-12899错误

数据库版本是Oracle 10G XE,从公司数据库的企业版导入时遭遇ORA-12899错误。

错误信息:

IMP-00019: row rejected due to ORACLE error 12899
IMP-00003: ORACLE error 12899 encountered
ORA-12899: value too large for column "OLP"."ART"."CONTENT" (actual: 242, maximum: 200)

 

初步断定是字符集问题,中文在UTF-8里占3个字节,ZHS16GBK里占2个字节,而源dmp文件字符集是ZHS16GBK的库到出来的,现在要导入到目标字符集为UFT-8的库里。

修改oracle 10g的字符集

Oracle

修改数据库字符集为:ZHS16GBK

查看服务器端字符集

SQL > select * from V$NLS_PARAMETERS

 

修改:$sqlplus /nolog

SQL>conn / as sysdba
SQL>SHUTDOWN IMMEDIATE
SQL>STARTUP MOUNT
SQL>ALTER SYSTEM ENABLE RESTRICTED SESSION;
SQL>ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0;
SQL>ALTER SYSTEM SET AQ_TM_PROCESSES=0;
SQL>ALTER DATABASE OPEN;
SQL> ALTER DATABASE CHARACTER SET ZHS16GBK ;
ALTER DATABASE CHARACTER SET ZHS16GBK
*ERROR at line 1:
ORA-12712: new character set must be a superset of old character set

 

报字符集不兼容,此时下INTERNAL_USE指令不对字符集超集进行检查:

SQL>ALTER DATABASE CHARACTER SET INTERNAL_USE ZHS16GBK;
SQL>SHUTDOWN IMMEDIATE
SQL>STARTUP

 

再次用imp导入,就没有问题了。

 

转载自:http://blog.sina.com.cn/s/blog_713043600100ohva.html

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