ABAP Select data from SAP table FMRES_SELECT_RESULTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMRES_SELECT_RESULTS
*  INTO TABLE @DATA(IT_FMRES_SELECT_RESULTS2).
*--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_FMRES_SELECT_RESULTS INDEX 1 INTO DATA(WA_FMRES_SELECT_RESULTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMRES_SELECT_RESULTS>-CUSTOMER = 1.
<FMRES_SELECT_RESULTS>-CCODE = 1.
<FMRES_SELECT_RESULTS>-BELNR = 1.
<FMRES_SELECT_RESULTS>-FISCAL_YEAR = 1.
<FMRES_SELECT_RESULTS>-REBZG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMRES_SELECT_RESULTS-REBZJ, sy-vline,
  WA_FMRES_SELECT_RESULTS-DMBTR, sy-vline,
  WA_FMRES_SELECT_RESULTS-WRBTR, sy-vline,
  WA_FMRES_SELECT_RESULTS-WAERS, sy-vline,
  WA_FMRES_SELECT_RESULTS-HKONT, sy-vline,
  WA_FMRES_SELECT_RESULTS-DOC_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMRES_SELECT_RESULTS 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_FMRES_SELECT_RESULTS 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_FMRES_SELECT_RESULTS INTO WA_FMRES_SELECT_RESULTS.


*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 CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMRES_SELECT_RESULTS-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMRES_SELECT_RESULTS-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field FISCAL_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMRES_SELECT_RESULTS-FISCAL_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMRES_SELECT_RESULTS-FISCAL_YEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field REBZJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMRES_SELECT_RESULTS-REBZJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMRES_SELECT_RESULTS-REBZJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMRES_SELECT_RESULTS-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMRES_SELECT_RESULTS-HKONT.
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_FMRES_SELECT_RESULTS_STR, 
CUSTOMER TYPE STRING,
CCODE TYPE STRING,
BELNR TYPE STRING,
FISCAL_YEAR TYPE STRING,
REBZG TYPE STRING,
REBZJ TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
HKONT TYPE STRING,
DOC_DATE TYPE STRING,
POSTING_DATE TYPE STRING,
BASE_DATE TYPE STRING,
NETTERMS TYPE STRING,
NET_DUE_DATE TYPE STRING,
DOC_TYPE TYPE STRING,
SHKZG TYPE STRING,
POSTING_KEY TYPE STRING,
STATUS_TEXT TYPE STRING,
STYLE_TABLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMRES_SELECT_RESULTS_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_FMRES_SELECT_RESULTS_STR-CUSTOMER sy-vline 
WA_FMRES_SELECT_RESULTS_STR-CCODE sy-vline 
WA_FMRES_SELECT_RESULTS_STR-BELNR sy-vline 
WA_FMRES_SELECT_RESULTS_STR-FISCAL_YEAR sy-vline 
WA_FMRES_SELECT_RESULTS_STR-REBZG sy-vline 
WA_FMRES_SELECT_RESULTS_STR-REBZJ sy-vline 
WA_FMRES_SELECT_RESULTS_STR-DMBTR sy-vline 
WA_FMRES_SELECT_RESULTS_STR-WRBTR sy-vline 
WA_FMRES_SELECT_RESULTS_STR-WAERS sy-vline 
WA_FMRES_SELECT_RESULTS_STR-HKONT sy-vline 
WA_FMRES_SELECT_RESULTS_STR-DOC_DATE sy-vline 
WA_FMRES_SELECT_RESULTS_STR-POSTING_DATE sy-vline 
WA_FMRES_SELECT_RESULTS_STR-BASE_DATE sy-vline 
WA_FMRES_SELECT_RESULTS_STR-NETTERMS sy-vline 
WA_FMRES_SELECT_RESULTS_STR-NET_DUE_DATE sy-vline 
WA_FMRES_SELECT_RESULTS_STR-DOC_TYPE sy-vline 
WA_FMRES_SELECT_RESULTS_STR-SHKZG sy-vline 
WA_FMRES_SELECT_RESULTS_STR-POSTING_KEY sy-vline 
WA_FMRES_SELECT_RESULTS_STR-STATUS_TEXT sy-vline 
WA_FMRES_SELECT_RESULTS_STR-STYLE_TABLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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