Appen data into internal table

*&---------------------------------------------------------------------*
*& Report YEMP_REPORT1 *
*& *
*&---------------------------------------------------------------------*
*& *
*& *
*&---------------------------------------------------------------------*

REPORT YEMP_REPORT1.

TYPES: BEGIN OF ST_EMP,
EMP_NO LIKE YEMP-EMP_NO,
EMP_NAME LIKE YEMP-EMP_NAME,
CITY LIKE YEMP-CITY,
END OF ST_EMP.

DATA: WA_EMP TYPE ST_EMP.

DATA: IT_EMP LIKE SORTED TABLE OF WA_EMP WITH UNIQUE KEY EMP_NO.

WA_EMP-EMP_NO = '0001'.
WA_EMP-EMP_NAME ='xyz'.
WA_EMP-CITY = 'pune'.

APPEND WA_EMP TO IT_EMP.


Loop at it_emp into wa_emp.

Write :/5 wa_emp-emp_no,
20 wa_emp-emp_name,
45 wa_emp-city.
endloop.