dmp 文件的导入和导出

创建导出dmp 文件存放位置：
create or replace directory dump_dir as ‘F:\dump_dir’ drop directory dump_dir;
授权
grant read,write on directory dump_dir to user_name

导出：
expdp name/password schemas=schemas_name DUMPFILE=XXX.dmp DIRECTORY=DUMP_DIR JOB_NAME=full
导入
impdp name/password schemas=schemas_name DUMPFILE=XXX.dmp DIRECTORY=DUMP_DIR JOB_NAME=full