REPORT  z05_21.
 

TYPES: BEGIN OF ty_student,

         name    TYPE string,

         subject TYPE string,

         score   TYPE i,

       END OF ty_student.

TYPES: BEGIN OF ty_score,

         name  TYPE string,

         score TYPE i,

       END OF ty_score.

DATA: gt_students TYPE TABLE OF ty_student,

      gt_scores   TYPE TABLE OF ty_score,

      ls_score    TYPE ty_score.

gt_students = VALUE #( ( name = '김철수' subject = '국어' score = 85 )

                    ( name = '김철수' subject = '수학' score = 90 )

                    ( name = '김철수' subject = '영어' score = 80 )

                    ( name = '이영희' subject = '국어' score = 90 )

                    ( name = '이영희' subject = '수학' score = 75 )

                    ( name = '이영희' subject = '영어' score = 85 )

                    ( name = '조영수' subject = '국어' score = 80 )

                    ( name = '조영수' subject = '수학' score = 85 )

                    ( name = '조영수' subject = '영어' score = 95 ) ).

CLEAR gt_scores.

LOOP AT gt_students INTO DATA(ls_student).

  MOVE-CORRESPONDING ls_student TO ls_score.

  COLLECT ls_score INTO gt_scores.

ENDLOOP.

cl_demo_output=>display( gt_scores ).