ABAP Keyword Documentation → ABAP - Reference → Processing Internal Data → Internal Tables → Processing Statements for Internal Tables → MODIFY itab → MODIFY itab - itab_line
Internal tables, index assess with key specification
The example shows an index access to a hashed table.
Other versions: 7.31 | 7.40 | 7.54
Source Code
DATA: sflight_tab TYPE HASHED TABLE
OF sflight
WITH UNIQUE KEY primary_key
COMPONENTS carrid connid fldate
WITH NON-UNIQUE SORTED KEY plane_type
COMPONENTS planetype,
sflight_wa LIKE LINE OF sflight_tab,
count TYPE i.
SELECT *
FROM sflight
WHERE carrid = 'LH'
INTO TABLE @sflight_tab.
LOOP AT sflight_tab INTO sflight_wa USING KEY plane_type
WHERE planetype = 'A310-300'.
sflight_wa-seatsmax = sflight_wa-seatsmax + 20.
MODIFY sflight_tab INDEX sy-tabix
USING KEY loop_key
FROM sflight_wa
TRANSPORTING seatsmax.
IF sy-subrc = 0.
count = count + 1.
ENDIF.
ENDLOOP.
cl_demo_output=>display( |{ count } flights modified| ).
Description
The table sflight_tab is a hashed table with a unique primary key and a non-unique
secondary sorted key. Since a secondary sorted key is specified in the MODIFY
statement after USING KEY, it is possible to access the hashed table via the associated secondary table index.
The example only serves to demonstrate the syntax. Generally, instead of using the MODIFY statement such modifications should be carried out using a field symbol or a data reference:
WHERE planetype = 'A310-300'.
<sflight_wa>-seatsmax = <sflight_wa>-seatsmax + 20.
ENDLOOP.