Apache Pig Exercises: 10. List Empno, Ename, Job, Hiredate, Experience of all Managers

In this post the sample Apache Pig script will display Empno, Ename, Job, Hiredate, Experience of all Managers

The examples and exercise scripts are created using Apache Pig current version r0.14.0.

@ Test data structure:
Please refer to Apache Pig learning series intro... post for the file structures, visit the reference section shown at the bottom of the post for more. 

@ Sample data:

Employees data table:


Department data table:


@ Apache Pig Script:

List Empno, Ename, Job, Hiredate, Experience of all Managers:


grunt> 
data = LOAD '/Documents/tbl_EMP.txt' USING PigStorage(',') as (empno:int, ename:chararray, job:chararray, mgr:int, hiredate:chararray, sal:float, comm:float, deptno:int);
all_recs = foreach data generate empno,ename,job,mgr,hiredate, (int)GetYear(CurrentTime()) - (int)SUBSTRING(hiredate,0,4) as expn ,sal , comm,deptno;
fltr_mgrs = filter all_recs by job == 'MANAGER';
dump fltr_mgrs;

@Apache Pig Output on Grunt Shell: 

(7566,JONES,MANAGER,7839,1981-04-02,35,2975.0,,20)

(7698,BLAKE,MANAGER,7839,1981-05-01,35,2850.0,,30)

(7782,CLARK,MANAGER,7839,1981-06-09,35,2450.0,,10)

@ Apache Pig Reference/s:

• https://pig.apache.org
• http://pig.apache.org/docs/r0.14.0/

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Thank you!