ABAP Select data from SAP table FPM_SELPAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FPM_SELPAR
*  INTO TABLE @DATA(IT_FPM_SELPAR2).
*--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_FPM_SELPAR INDEX 1 INTO DATA(WA_FPM_SELPAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FPM_SELPAR>-PARAM = 1.
<FPM_SELPAR>-PFILE = 1.
<FPM_SELPAR>-XFORA = 1.
<FPM_SELPAR>-XFORI = 1.
<FPM_SELPAR>-XFORC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FPM_SELPAR-XPADV, sy-vline,
  WA_FPM_SELPAR-XPERR, sy-vline,
  WA_FPM_SELPAR-XPFIL, sy-vline,
  WA_FPM_SELPAR-XBELP, sy-vline,
  WA_FPM_SELPAR-XPLST, sy-vline,
  WA_FPM_SELPAR-XSCRN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FPM_SELPAR 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_FPM_SELPAR 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_FPM_SELPAR INTO WA_FPM_SELPAR.


*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_FPM_SELPAR_STR, 
PARAM TYPE STRING,
PFILE TYPE STRING,
XFORA TYPE STRING,
XFORI TYPE STRING,
XFORC TYPE STRING,
XPADV TYPE STRING,
XPERR TYPE STRING,
XPFIL TYPE STRING,
XBELP TYPE STRING,
XPLST TYPE STRING,
XSCRN TYPE STRING,
XAVIS TYPE STRING,
XCHRREP TYPE STRING,
XUPCASE TYPE STRING,
ALTFORM TYPE STRING,
NUMSPRI TYPE STRING,
CURRISO TYPE STRING,
RECEIVER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FPM_SELPAR_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_FPM_SELPAR_STR-PARAM sy-vline 
WA_FPM_SELPAR_STR-PFILE sy-vline 
WA_FPM_SELPAR_STR-XFORA sy-vline 
WA_FPM_SELPAR_STR-XFORI sy-vline 
WA_FPM_SELPAR_STR-XFORC sy-vline 
WA_FPM_SELPAR_STR-XPADV sy-vline 
WA_FPM_SELPAR_STR-XPERR sy-vline 
WA_FPM_SELPAR_STR-XPFIL sy-vline 
WA_FPM_SELPAR_STR-XBELP sy-vline 
WA_FPM_SELPAR_STR-XPLST sy-vline 
WA_FPM_SELPAR_STR-XSCRN sy-vline 
WA_FPM_SELPAR_STR-XAVIS sy-vline 
WA_FPM_SELPAR_STR-XCHRREP sy-vline 
WA_FPM_SELPAR_STR-XUPCASE sy-vline 
WA_FPM_SELPAR_STR-ALTFORM sy-vline 
WA_FPM_SELPAR_STR-NUMSPRI sy-vline 
WA_FPM_SELPAR_STR-CURRISO sy-vline 
WA_FPM_SELPAR_STR-RECEIVER sy-vline      INTO ld_text SEPARATED BY SPACE.

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