ABAP Select data from SAP table INT_FMFPO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INT_FMFPO
*  INTO TABLE @DATA(IT_INT_FMFPO2).
*--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_INT_FMFPO INDEX 1 INTO DATA(WA_INT_FMFPO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INT_FMFPO>-MANDT = 1.
<INT_FMFPO>-FIKRS = 1.
<INT_FMFPO>-FIPOS = 1.
<INT_FMFPO>-POSIT = 1.
<INT_FMFPO>-ERFNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INT_FMFPO-ERFDAT, sy-vline,
  WA_INT_FMFPO-FIVOR, sy-vline,
  WA_INT_FMFPO-KNZAEPO, sy-vline,
  WA_INT_FMFPO-DEAKTIV, sy-vline,
  WA_INT_FMFPO-LOEVM, sy-vline,
  WA_INT_FMFPO-BEZEICH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INT_FMFPO 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_INT_FMFPO 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_INT_FMFPO INTO WA_INT_FMFPO.


*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 FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_INT_FMFPO-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INT_FMFPO-FIPOS.
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_INT_FMFPO_STR, 
MANDT TYPE STRING,
FIKRS TYPE STRING,
FIPOS TYPE STRING,
POSIT TYPE STRING,
ERFNAME TYPE STRING,
ERFDAT TYPE STRING,
FIVOR TYPE STRING,
KNZAEPO TYPE STRING,
DEAKTIV TYPE STRING,
LOEVM TYPE STRING,
BEZEICH TYPE STRING,
BESCHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INT_FMFPO_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_INT_FMFPO_STR-MANDT sy-vline 
WA_INT_FMFPO_STR-FIKRS sy-vline 
WA_INT_FMFPO_STR-FIPOS sy-vline 
WA_INT_FMFPO_STR-POSIT sy-vline 
WA_INT_FMFPO_STR-ERFNAME sy-vline 
WA_INT_FMFPO_STR-ERFDAT sy-vline 
WA_INT_FMFPO_STR-FIVOR sy-vline 
WA_INT_FMFPO_STR-KNZAEPO sy-vline 
WA_INT_FMFPO_STR-DEAKTIV sy-vline 
WA_INT_FMFPO_STR-LOEVM sy-vline 
WA_INT_FMFPO_STR-BEZEICH sy-vline 
WA_INT_FMFPO_STR-BESCHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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