remap_ Use of table in impdp

remap_table When converting multiple tables ,TB1 transformation TB2、TB3 transformation TB4.
1.remap_table=tb1:tb2 remap_table=tb3:tb4
2.remap_table=tb1:tb2,tb3:tb4
impdp About tables and remap_tables Some do's and don 'ts
1.expdp Write when tables=( surface ) Indicates that some tables are exported ;impdp Time not to write tables Condition means import dumpfile All the tables in ,impdp Chrono tables=( surface ) Condition means that only the specified table is imported , Of course, if tables=(dumpfile All the tables in ) That is to say, import dumpfile All the tables in ; And if you use system perform impdp Time principle tables=( surface ) You have to add schema. Table name , Otherwise, it defaults to system The table below , It will lead to an error
2.remap_table If you are in the same schema Proceed under , Although don't add remap_schema, however remap_table The name of the watch in front of the colon must have schema Information , The name of the watch after the colon must not be schema Information
3.remap_table If it's different schema In the case of , Such as user1.TB1 convert to user2.TB2,user1.TB3 convert to user2.TB4, Must be added remap_schema, And remap_table The name of the watch in front of the colon must have schema Information , The name of the watch after the colon must not be schema Information
There are two ways
1.remap_table= user1.TB1:TB2 remap_table= user1.TB3:TB4 remap_schema= user1: user2
2.remap_table= user1.TB1:TB2,user1.TB3:TB4 remap_schema= user1: user2
Span schema The standard way to export only imported tables and rename them is as follows
expdp when tables write schema. Table names separated by commas
impdp The need when remap_schema, tables Write but not write ,remap_table Add schema, The table name after the colon is not added schema
expdp system/oracle tables=user01.src_tb01,user01.src_tb02,user01.src_tb03 directory=DMP dumpfile=tb_2013.dbf
impdp system/oracle remap_schema=user01:user02 tables=user01.src_tb01,user01.src_tb02,user01.src_tb03 remap_table=user01.src_tb01:dest_tb01,user01.src_tb02:dest_tb02,user01.src_tb03:dest_tb03 directory=IMP dumpfile=tb_2013.dbf