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expdp parfile:
schemas=cguo_production
dumpfile=cguo_production.dmp
directory=cguo_dump
logfile=exp_cguo_production.log
content=metadata_only
job_name=exp_cguo_production
exclude=job
NETWORK_LINK=cguo_production.whouse01_link

impdp parfile:
directory=cguo_dump
dumpfile=cguo_production.dmp
remap_schema=cguo_production:cguo_warehouse
content=metadata_only
logfile=imp_cguo_production.log
job_name=imp_cguo_production
NETWORK_LINK=cguo_production.whouse01_link