Home Database Mysql Tutorial Oracle数据泵:impdp以及expdp

Oracle数据泵:impdp以及expdp

Jun 07, 2016 pm 05:21 PM

在并行模式下,状态屏幕将显示四个工作进程。(在默认模式下,只有一个进程是可见的)所有的工作进程同步取出数据,并在状态屏幕







 
六、参数说明-----导入impdp
1、TABBLE_EXISTS_ACTION={SKIP | APPEND | TRUNCATE | FRPLACE }
当设置该选项为SKIP时,导入作业会跳过已存在表处理下一个对象;当设置为APPEND时,会追加数据,为TRUNCATE时,导入作业会截断表,然后为其追加新数据;当设置为REPLACE时,导入作业会删除已存在表,重建表病追加数据,注意,TRUNCATE选项不适用与簇表和NETWORK_LINK选项;
2、REMAP_SCHEMA
该选项用于将源方案的所有对象装载到目标方案中:REMAP_SCHEMA=source_schema:target_schema
3、REMAP_TABLESPACE
将源表空间的所有对象导入到目标表空间中:REMAP_TABLESPACE=source_tablespace:target:tablespace
4、REMAP_DATAFILE
该选项用于将源数据文件名转变为目标数据文件名,在不同平台之间搬移表空间时可能需要该选项.
REMAP_DATAFIEL=source_datafie:target_datafile

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