ABAP Select data from SAP table FPAYHX_FREF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FPAYHX_FREF 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 FPAYHX_FREF. See here for more generic Select statement tips.

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 FPAYHX_FREF 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_FPAYHX_FREF TYPE STANDARD TABLE OF FPAYHX_FREF,
      WA_FPAYHX_FREF TYPE FPAYHX_FREF,
      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: <FPAYHX_FREF> TYPE FPAYHX_FREF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FPAYHX_FREF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FPAYHX_FREF
  INTO TABLE IT_FPAYHX_FREF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FPAYHX_FREF
*  INTO TABLE @DATA(IT_FPAYHX_FREF2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FPAYHX_FREF INDEX 1 INTO DATA(WA_FPAYHX_FREF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FPAYHX_FREF ASSIGNING <FPAYHX_FREF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FPAYHX_FREF>-CURNO = 1.
<FPAYHX_FREF>-REF01 = 1.
<FPAYHX_FREF>-REF02 = 1.
<FPAYHX_FREF>-REF03 = 1.
<FPAYHX_FREF>-REF04 = 1.

ENDLOOP.

LOOP AT IT_FPAYHX_FREF INTO WA_FPAYHX_FREF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FPAYHX_FREF-REF05, sy-vline,
  WA_FPAYHX_FREF-REF06, sy-vline,
  WA_FPAYHX_FREF-REF07, sy-vline,
  WA_FPAYHX_FREF-REF08, sy-vline,
  WA_FPAYHX_FREF-REF09, sy-vline,
  WA_FPAYHX_FREF-REF10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FPAYHX_FREF 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_FPAYHX_FREF 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_FPAYHX_FREF INTO WA_FPAYHX_FREF.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FPAYHX_FREF_STR, 
CURNO TYPE STRING,
REF01 TYPE STRING,
REF02 TYPE STRING,
REF03 TYPE STRING,
REF04 TYPE STRING,
REF05 TYPE STRING,
REF06 TYPE STRING,
REF07 TYPE STRING,
REF08 TYPE STRING,
REF09 TYPE STRING,
REF10 TYPE STRING,
REF11 TYPE STRING,
REF12 TYPE STRING,
REF13 TYPE STRING,
REF14 TYPE STRING,
REF15 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FPAYHX_FREF_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FPAYHX_FREF_STR-CURNO sy-vline 
WA_FPAYHX_FREF_STR-REF01 sy-vline 
WA_FPAYHX_FREF_STR-REF02 sy-vline 
WA_FPAYHX_FREF_STR-REF03 sy-vline 
WA_FPAYHX_FREF_STR-REF04 sy-vline 
WA_FPAYHX_FREF_STR-REF05 sy-vline 
WA_FPAYHX_FREF_STR-REF06 sy-vline 
WA_FPAYHX_FREF_STR-REF07 sy-vline 
WA_FPAYHX_FREF_STR-REF08 sy-vline 
WA_FPAYHX_FREF_STR-REF09 sy-vline 
WA_FPAYHX_FREF_STR-REF10 sy-vline 
WA_FPAYHX_FREF_STR-REF11 sy-vline 
WA_FPAYHX_FREF_STR-REF12 sy-vline 
WA_FPAYHX_FREF_STR-REF13 sy-vline 
WA_FPAYHX_FREF_STR-REF14 sy-vline 
WA_FPAYHX_FREF_STR-REF15 sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.