ABAP Select data from SAP table /SCWM/S_RF_PTWY_ATT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCWM/S_RF_PTWY_ATT table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to /SCWM/S_RF_PTWY_ATT.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the /SCWM/S_RF_PTWY_ATT table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_/SCWM/S_RF_PTWY_ATT TYPE STANDARD TABLE OF /SCWM/S_RF_PTWY_ATT,
      WA_/SCWM/S_RF_PTWY_ATT TYPE /SCWM/S_RF_PTWY_ATT,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: </SCWM/S_RF_PTWY_ATT> TYPE /SCWM/S_RF_PTWY_ATT.


*Original SAP ECC Select statement 
SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCWM/S_RF_PTWY_ATT
  INTO TABLE IT_/SCWM/S_RF_PTWY_ATT.

*Select data and declare internal table using  in-line method @DATA 
SELECT *
  FROM /SCWM/S_RF_PTWY_ATT
  INTO TABLE @DATA(IT_/SCWM/S_RF_PTWY_ATT2).

*You can also declare the header/work area using the  in-line DATA declaration method 
READ TABLE IT_/SCWM/S_RF_PTWY_ATT INDEX 1 INTO DATA(WA_/SCWM/S_RF_PTWY_ATT2).


*Latest ABAP cloud SELECT statement using the FIELDS syntax. But note to following the clean core principles you should not select directly from an SAP table 
* and should instead use a CDS view or create you own CDS and use that.
SELECT FROM /SCWM/S_RF_PTWY_ATT
  FIELDS *
*  WHERE would go here
  INTO TABLE @DATA(IT_/SCWM/S_RF_PTWY_ATT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCWM/S_RF_PTWY_ATT ASSIGNING </SCWM/S_RF_PTWY_ATT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_RF_PTWY_ATT>-TANUM = 1.
</SCWM/S_RF_PTWY_ATT>-HUIDENT = 1.
</SCWM/S_RF_PTWY_ATT>-HUIDENT_VERIF = 1.
</SCWM/S_RF_PTWY_ATT>-HUIDENT_POS = 1.
</SCWM/S_RF_PTWY_ATT>-HUIDENT_POS_VERIF = 1.

ENDLOOP.

LOOP AT IT_/SCWM/S_RF_PTWY_ATT INTO WA_/SCWM/S_RF_PTWY_ATT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_RF_PTWY_ATT-FLGHUTO, sy-vline,
  WA_/SCWM/S_RF_PTWY_ATT-HUTO_CREATE, sy-vline,
  WA_/SCWM/S_RF_PTWY_ATT-WHO, sy-vline,
  WA_/SCWM/S_RF_PTWY_ATT-WHOSEQ, sy-vline,
  WA_/SCWM/S_RF_PTWY_ATT-PATHSEQ, sy-vline,
  WA_/SCWM/S_RF_PTWY_ATT-MATID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_RF_PTWY_ATT you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_/SCWM/S_RF_PTWY_ATT TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_/SCWM/S_RF_PTWY_ATT INTO WA_/SCWM/S_RF_PTWY_ATT.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPH0, internal->external for field TANUM
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-TANUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-TANUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-HUIDENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field WHO
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-WHO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-WHO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MDLPD, internal->external for field MATID
CALL FUNCTION 'CONVERSION_EXIT_MDLPD_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-MATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-MATID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MDLP1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MDLP1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MDLPS, internal->external for field MATNR_VERIF
CALL FUNCTION 'CONVERSION_EXIT_MDLPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-MATNR_VERIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-MATNR_VERIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field VLENR
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-VLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-VLENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field NLENR
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-NLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-NLENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field NLENR_ORIG
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-NLENR_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-NLENR_ORIG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QNTY1, internal->external for field VSOLA
CALL FUNCTION 'CONVERSION_EXIT_QNTY1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-VSOLA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-VSOLA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QNTY1, internal->external for field NSOLA
CALL FUNCTION 'CONVERSION_EXIT_QNTY1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-NSOLA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-NSOLA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QTYCH, internal->external for field NISTA
CALL FUNCTION 'CONVERSION_EXIT_QTYCH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-NISTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-NISTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QTYCH, internal->external for field NISTA_VERIF
CALL FUNCTION 'CONVERSION_EXIT_QTYCH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-NISTA_VERIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-NISTA_VERIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QTYCH, internal->external for field NDIFA
CALL FUNCTION 'CONVERSION_EXIT_QTYCH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-NDIFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-NDIFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ALTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-ALTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-ALTME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field STARTED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-STARTED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-STARTED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QNTY1, internal->external for field OPEN_QTY
CALL FUNCTION 'CONVERSION_EXIT_QNTY1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-OPEN_QTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-OPEN_QTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CWUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-CWUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-CWUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SUOM_SCR
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-SUOM_SCR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-SUOM_SCR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTITLED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_PTWY_ATT-ENTITLED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_PTWY_ATT-ENTITLED.
WRITE:/ 'New Value:', ld_input.
ENDFORM.