准备测试数据 测试数据包括两个文件dept(部门)和emp(员工),其中各字段用逗号分隔: dept文件内容: 10,ACCOUNTING,NEW YORK 20,RESEARCH,DALLAS 30,SALES,CHICAGO 40,OPERATIONS,BOSTON emp文件内容: 7369,SMITH,CLERK,7902,17-12月-80,800,,20 7499,ALLEN,SALESMAN,7698,20-2月 -81,1600,300,30 7521,WARD,SALESMAN,7698,22-2月 -81,1250,500,30 7566,JONES,MANAGER,7839,02-4月 -81,2975,,20 7654,MARTIN,SALESMAN,7698,28-9月 -81,1250,1400,30 7698,BLAKE,MANAGER,7839,01-5月 -81,2850,,30 7782,CLARK,MANAGER,7839,09-6月 -81,2450,,10 7839,KING,PRESIDENT,,17-11月-81,5000,,10 7844,TURNER,SALESMAN,7698,08-9月 -81,1500,0,30 7900,JAMES,CLERK,7698,03-12月-81,950,,30 7902,FORD,ANALYST,7566,03-12月-81,3000,,20 7934,MILLER,CLERK,7782,23-1月 -82,1300,,10
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