How to add two or more fields in a range table with FOR Expression

Requirement: To form a range table consuming two or more fields from a table in ABAP.

Old or Traditional way of Coding:

*Define the structures of table

TYPES:

  BEGIN OF lty_comp,

    seqno  TYPE char4,

    wtype1 TYPE char4,

    wtype2 TYPE char4,

    wtype3 TYPE char4,

  END OF lty_comp.

*Declare table type

TYPES: gtt_comp      TYPE STANDARD TABLE OF lty_comp WITH DEFAULT KEY,

       lr_lgart_type TYPE RANGE OF lgart.

DATA:  lr_wtype      TYPE lr_lgart_type.

*Populate an Internal Table with some Hardcoded values

DATA(lt_item) = VALUE gtt_comp( ( seqno = '0001' wtype1 = 'WT1A' wtype2 = 'WT2A' wtype3 = 'WT3A' )

                    ( seqno = '0001' wtype1 = 'WT1B' wtype2 = 'WT2B' wtype3 = 'WT3B' )

                    ( seqno = '0001' wtype1 = 'WT1C' wtype2 = 'WT2C' wtype3 = 'WT3C' )

                    ( seqno = '0001' wtype1 = 'WT1D' wtype2 = 'WT2D' wtype3 = 'WT3D' )

                    ( seqno = '0001' wtype1 = 'WT1E' wtype2 = 'WT2E' wtype3 = 'WT3E' )

                    ( seqno = '0001' wtype1 = 'WT1F' wtype2 = 'WT2F' wtype3 = 'WT3F' ) ).

* Range table for wtype 1

lr_wtype = VALUE #( BASE lr_wtype

                    FOR ls_wtype IN lt_item

                    sign = 'I' option = 'EQ' ( low = ls_wtype-wtype1 ) ).

* Range table for wtype 2

lr_wtype = VALUE #( BASE lr_wtype

                    FOR ls_wtype IN lt_item

                    sign = 'I' option = 'EQ' ( low = ls_wtype-wtype2 ) ).

* Range table for wtype 3

lr_wtype = VALUE #( BASE lr_wtype

                    FOR ls_wtype IN lt_item

                    sign = 'I' option = 'EQ' ( low = ls_wtype-wtype3 ) ).

cl_demo_output=>display( lr_wtype ).

Result:

Result 1

Another way with few lines of code.

*Define the structures of header & item table

TYPES:

  BEGIN OF lty_comp,

    seqno  TYPE char4,

    wtype1 TYPE char4,

    wtype2 TYPE char4,

    wtype3 TYPE char4,

  END OF lty_comp.

*Declare table type

TYPES: gtt_comp      TYPE STANDARD TABLE OF lty_comp WITH DEFAULT KEY,

       lr_lgart_type TYPE RANGE OF lgart.

DATA:  lr_wtype      TYPE lr_lgart_type.

*Populate an Internal Table with some Hardcoded values

DATA(lt_item) = VALUE gtt_comp( ( seqno = '0001' wtype1 = 'WT1A' wtype2 = 'WT2A' wtype3 = 'WT3A' )

                    ( seqno = '0001' wtype1 = 'WT1B' wtype2 = 'WT2B' wtype3 = 'WT3B' )

                    ( seqno = '0001' wtype1 = 'WT1C' wtype2 = 'WT2C' wtype3 = 'WT3C' )

                    ( seqno = '0001' wtype1 = 'WT1D' wtype2 = 'WT2D' wtype3 = 'WT3D' )

                    ( seqno = '0001' wtype1 = 'WT1E' wtype2 = 'WT2E' wtype3 = 'WT3E' )

                    ( seqno = '0001' wtype1 = 'WT1F' wtype2 = 'WT2F' wtype3 = 'WT3F' ) ).

* Range table for wtype 1/2/3

lr_wtype = VALUE #( BASE lr_wtype

                    FOR ls_wtype IN lt_item

                    sign = 'I' option = 'EQ' ( low = ls_wtype-wtype1 )

                               option = 'EQ' ( low = ls_wtype-wtype2 )

                               option = 'EQ' ( low = ls_wtype-wtype3 ) ).

cl_demo_output=>display( lr_wtype ).

Result 2

Result 2

Only difference between two results is the low value gets reordered due to for expression.