ABAP Select data from SAP table RESR_REPORT_XFIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RESR_REPORT_XFIELDS 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 RESR_REPORT_XFIELDS. 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 RESR_REPORT_XFIELDS 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_RESR_REPORT_XFIELDS TYPE STANDARD TABLE OF RESR_REPORT_XFIELDS,
      WA_RESR_REPORT_XFIELDS TYPE RESR_REPORT_XFIELDS,
      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: <RESR_REPORT_XFIELDS> TYPE RESR_REPORT_XFIELDS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RESR_REPORT_XFIELDS
*  INTO TABLE @DATA(IT_RESR_REPORT_XFIELDS2).
*--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_RESR_REPORT_XFIELDS INDEX 1 INTO DATA(WA_RESR_REPORT_XFIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RESR_REPORT_XFIELDS>-XRHYTHMTYPE = 1.
<RESR_REPORT_XFIELDS>-XRPTYPE = 1.
<RESR_REPORT_XFIELDS>-XSALESTYPE = 1.
<RESR_REPORT_XFIELDS>-XTERM = 1.
<RESR_REPORT_XFIELDS>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RESR_REPORT_XFIELDS-RECNNR, sy-vline,
  WA_RESR_REPORT_XFIELDS-RECNTXT, sy-vline,
  WA_RESR_REPORT_XFIELDS-PARTNER, sy-vline,
  WA_RESR_REPORT_XFIELDS-XNAME, sy-vline,
  WA_RESR_REPORT_XFIELDS-XPARTNER, sy-vline,
  WA_RESR_REPORT_XFIELDS-DUEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RESR_REPORT_XFIELDS 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_RESR_REPORT_XFIELDS 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_RESR_REPORT_XFIELDS INTO WA_RESR_REPORT_XFIELDS.


*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 ALPHA, internal->external for field RECNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESR_REPORT_XFIELDS-RECNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESR_REPORT_XFIELDS-RECNNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit REDAT, internal->external for field INTERVALTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RESR_REPORT_XFIELDS-INTERVALTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESR_REPORT_XFIELDS-INTERVALTO.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_RESR_REPORT_XFIELDS_STR, 
XRHYTHMTYPE TYPE STRING,
XRPTYPE TYPE STRING,
XSALESTYPE TYPE STRING,
XTERM TYPE STRING,
BUKRS TYPE STRING,
RECNNR TYPE STRING,
RECNTXT TYPE STRING,
PARTNER TYPE STRING,
XNAME TYPE STRING,
XPARTNER TYPE STRING,
DUEDATE TYPE STRING,
DUEICON TYPE STRING,
IS_READONLY TYPE STRING,
IS_SETTLED TYPE STRING,
IS_CORRECTED TYPE STRING,
INTERVALFROM TYPE STRING,
INTERVALTO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RESR_REPORT_XFIELDS_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_RESR_REPORT_XFIELDS_STR-XRHYTHMTYPE sy-vline 
WA_RESR_REPORT_XFIELDS_STR-XRPTYPE sy-vline 
WA_RESR_REPORT_XFIELDS_STR-XSALESTYPE sy-vline 
WA_RESR_REPORT_XFIELDS_STR-XTERM sy-vline 
WA_RESR_REPORT_XFIELDS_STR-BUKRS sy-vline 
WA_RESR_REPORT_XFIELDS_STR-RECNNR sy-vline 
WA_RESR_REPORT_XFIELDS_STR-RECNTXT sy-vline 
WA_RESR_REPORT_XFIELDS_STR-PARTNER sy-vline 
WA_RESR_REPORT_XFIELDS_STR-XNAME sy-vline 
WA_RESR_REPORT_XFIELDS_STR-XPARTNER sy-vline 
WA_RESR_REPORT_XFIELDS_STR-DUEDATE sy-vline 
WA_RESR_REPORT_XFIELDS_STR-DUEICON sy-vline 
WA_RESR_REPORT_XFIELDS_STR-IS_READONLY sy-vline 
WA_RESR_REPORT_XFIELDS_STR-IS_SETTLED sy-vline 
WA_RESR_REPORT_XFIELDS_STR-IS_CORRECTED sy-vline 
WA_RESR_REPORT_XFIELDS_STR-INTERVALFROM sy-vline 
WA_RESR_REPORT_XFIELDS_STR-INTERVALTO sy-vline      INTO ld_text SEPARATED BY SPACE.

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