Add five records in each table. In the case of the one with header line, use it embed work
area. For the other one, use a work area declared explicitly. Print the contents of both internal tables.

Solution:
REPORT z_abap101_069.
TYPES: BEGIN OF ty_line,
id TYPE n LENGTH 8,
name TYPE c LENGTH 20,
age TYPE i,
END OF ty_line.
DATA it_without_hat TYPE TABLE OF ty_line.
DATA it_with_hat TYPE TABLE OF ty_line WITH HEADER LINE. " Debug me to
understand my name
* Populating the internal table WITHOUT HEADER LINE (hat)
DATA wa_line TYPE ty_line.
wa_line-id = 1.
wa_line-name = 'The One'.
wa_line-age = 10.
APPEND wa_line TO it_without_hat.
wa_line-id = 2.
wa_line-name = 'Bob'.
wa_line-age = 20.
APPEND wa_line TO it_without_hat.
wa_line-id = 3.
wa_line-name = 'Mary'.
wa_line-age = 30.
APPEND wa_line TO it_without_hat.
wa_line-id = 4.
wa_line-name = 'Chris'.
wa_line-age = 40.
APPEND wa_line TO it_without_hat.
wa_line-id = 5.
wa_line-name = 'Janet'.
wa_line-age = 50.
APPEND wa_line TO it_without_hat.
* Populating the internal table WITH HEADER LINE (hat)
it_with_hat-id = 1.
it_with_hat-name = 'The One'.
it_with_hat-age = 10.
APPEND it_with_hat.
it_with_hat-id = 2.
it_with_hat-name = 'Bob'.
it_with_hat-age = 20.
APPEND it_with_hat.
it_with_hat-id = 3.
it_with_hat-name = 'Mary'.
it_with_hat-age = 30.
APPEND it_with_hat.
it_with_hat-id = 4.
it_with_hat-name = 'Chris'.
it_with_hat-age = 40.
APPEND it_with_hat.
it_with_hat-id = 5.
it_with_hat-name = 'Janet'.
it_with_hat-age = 50.
APPEND it_with_hat.
* Printing table WITHOUT header line
LOOP AT it_without_hat INTO wa_line.
WRITE: wa_line-id, wa_line-name, wa_line-age.
NEW-LINE.
ENDLOOP.
* Printing table WITH header line
LOOP AT it_with_hat.
WRITE: it_with_hat-id, it_with_hat-name, it_with_hat-age.
NEW-LINE.
ENDLOOP.
NEW-LINE.
*IF it_without_hat = it_with_hat. " Try to uncomment this IF
* WRITE 'Maybe the tables are not so equal because...'.
* NEW-LINE.
*ENDIF.
IF it_without_hat = it_with_hat[].
WRITE ' ... without using []s we are using the work area and not the internal
table'.
ENDIF.



Serkan AKKAVAK
Computer Engineer
ABAP Developer & SAP S/4 HANA Logistics Consultant
Contact : serkurumsal@yandex.com