REPORT  Z05_006                                                     .
TYPES: BEGIN OF LINE,
        COL1,
        COL2,
      END OF LINE.

DATA: WA TYPE LINE,
      ITAB TYPE HASHED TABLE OF LINE WITH UNIQUE KEY COL1,
      KEY(4) VALUE 'COL1'.

WA-COL1 = 'X'. INSERT WA INTO TABLE ITAB.
WA-COL1 = 'Y'. INSERT WA INTO TABLE ITAB.

PERFORM DEMO USING ITAB.

FORM DEMO USING P TYPE ANY TABLE.
  READ TABLE P WITH TABLE KEY (KEY) = 'X' INTO WA.
  write : / wa-col1.
ENDFORM.