导出表中部分数据
# 单张表 $ expdp hr/hr TABLES=employees CONTENT=data_only DIRECTORY=datapump DUMPFILE=hr_emp.dmp LOGFILE=hr_emp.log JOB_NAME=hr_emp QUERY='"where employee_id > 150"' # 多张表 $ expdp hr/hr TABLES=employees,scott.emp CONTENT=data_only DIRECTORY=datapump DUMPFILE=hr_emp.dmp LOGFILE=hr_emp.log JOB_NAME=hr_emp QUERY='"where employee_id > 150"','scott.emp:"where empno = 7788"'