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Export: dba user privileges, you can export a user's database objects.
expdp property/[email protected]:1521/orcl directory=filedump dumpfile=property515200.dmp logfile=property515200.log schemas=property
Import: The property of the user to user wechat
impdp nurse/[email protected]:1521/orcl directory=filedump dumpfile=property515200.dmp logfile=wechat200imp.log REMAP_SCHEMA=property:wechat