问题描述

ORA-39346: data loss in character set conversion for object COMMENT"

对象COMMENT字符集转换丢失数据，导入失败不影响最终数据，只影响表注释。

sqlplus xxxx/******** \DIRECTORY=xxxx \DUMPFILE=xxxx_%U.dmp \REMAP_SCHEMA=xxxx:xxxx \REMAP_TABLESPACE=xxxx:xxxx \REMAP_TABLE=xxxx:xxxx \TABLES=xxxx \LOGFILE=xxxx.log \TABLE_EXISTS_ACTION=REPLACE \PARALLEL=4 \INCLUDE=TABLE/TABLE,TABLE/TABLE_DATA,TABLE/COMMENT

原因分析：

expdp导出时COMMENT异常，导致导入对象COMMENT字符集转换丢失数据 INCLUDE=TABLE/TABLE,TABLE/TABLE_DATA,TABLE/COMMENT

解决方案：

导入时限制COMMENT

sqlplus xxxx/******** \DIRECTORY=xxxx \DUMPFILE=xxxx_%U.dmp \REMAP_SCHEMA=xxxx:xxxx \REMAP_TABLESPACE=xxxx:xxxx \REMAP_TABLE=xxxx:xxxx \TABLES=xxxx \LOGFILE=xxxx.log \TABLE_EXISTS_ACTION=REPLACE \PARALLEL=4 \INCLUDE=TABLE/TABLE,TABLE/TABLE_DATA

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ORA-39346: data loss in character set conversion for object COMMENT

问题描述

原因分析：

解决方案：

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