ABAP Datentypen

TYPES t_reservation_tab TYPE HASHED TABLE OF zreservation WITH UNIQUE KEY reservation_id.
DATA: licence_plate TYPE zcars-licence_plate,
 reservation_wa LIKE LINE OF reservation_tab,
 reservation_num TYPE i,
 mess TYPE string.
 
DATA text TYPE string VALUE 'HELLO WORLD'.
DATA oref TYPE REF TO myclass.
DATA vehicle_tab TYPE TABLE OF REF TO zcl_vehicle.
DATA array TYPE STANDARD TABLE OF i WITH KEY table_line
 
TYPES: BEGIN OF foo,
      eins TYPE zcatest-id,
      zwei TYPE zcatest-bezeichnung,
END OF foo.
DATA bar TYPE foo.
 
DATA zcatest_tab TYPE TABLE OF zcatest.
SELECT * from zcatest into TABLE zcatest_tab.
 
DATA zcatest_wa TYPE zcatest.
SELECT * from zcatest into zcatest_wa.
 MESSAGE 'foo' TYPE 'I'.
ENDSELECT.
 
 
MESSAGE text TYPE 'I'
 
CREATE OBJECT oref.
 
DO 3 TIMES.
  CREATE OBJECT vehicle.
  APPEND vehicle TO vehicle_tab
ENDDO.
 
LOOP AT vehicle_tab INTO vehicle.
 vehicle->show_speed().
 ENDLOOP.