Hi Burak,
see the below code, it may help you.
TYPES: BEGIN OF ty_test,
col1(3) TYPE c,
col2 TYPE i,
col3 TYPE i,
END OF ty_test.
DATA: gt_test TYPE STANDARD TABLE OF ty_test,
gs_test TYPE ty_test.
DATA gt_test1 TYPE STANDARD TABLE OF ty_test.
gs_test-col1 = 'IND'.
gs_test-col2 = 20.
gs_test-col3 = 6.
APPEND gs_test TO gt_test.
CLEAR gs_test.
gs_test-col1 = 'USA'.
gs_test-col2 = 10.
gs_test-col3 = 3.
APPEND gs_test TO gt_test.
CLEAR gs_test.
gs_test-col1 = 'IND'.
gs_test-col2 = 12.
gs_test-col3 = 7.
APPEND gs_test TO gt_test.
CLEAR gs_test.
LOOP AT gt_test INTO gs_test.
COLLECT gs_test INTO gt_test1.
CLEAR gs_test.
ENDLOOP.
Regards,
Chinni