Apache Pig Exercises: 11. List Empno, Ename, Sal, Exp of all Employees working for Manager 7839

In this post the sample Apache Pig script will Empno, Ename, Sal, Exp of all Employees working for Manager 7839.

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, Sal, Exp of all Employees working for Manager 7839:

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 mgr==7839;
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!