ABAP Select data from SAP table TXI_FMFPO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXI_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 TXI_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 TXI_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_TXI_FMFPO TYPE STANDARD TABLE OF TXI_FMFPO,
      WA_TXI_FMFPO TYPE TXI_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: <TXI_FMFPO> TYPE TXI_FMFPO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_FMFPO
*  INTO TABLE @DATA(IT_TXI_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_TXI_FMFPO INDEX 1 INTO DATA(WA_TXI_FMFPO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_FMFPO>-MANDT = 1.
<TXI_FMFPO>-FIKRS = 1.
<TXI_FMFPO>-FIPOS = 1.
<TXI_FMFPO>-DATBIS = 1.
<TXI_FMFPO>-DATAB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_FMFPO-POSIT, sy-vline,
  WA_TXI_FMFPO-ERFNAME, sy-vline,
  WA_TXI_FMFPO-ERFDAT, sy-vline,
  WA_TXI_FMFPO-FIVOR, sy-vline,
  WA_TXI_FMFPO-KNZAEPO, sy-vline,
  WA_TXI_FMFPO-DEAKTIV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_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_TXI_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_TXI_FMFPO INTO WA_TXI_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_TXI_FMFPO-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_FMFPO-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_TXI_FMFPO-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_FMFPO-FIPEX.
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_TXI_FMFPO_STR, 
MANDT TYPE STRING,
FIKRS TYPE STRING,
FIPOS TYPE STRING,
DATBIS TYPE STRING,
DATAB TYPE STRING,
POSIT TYPE STRING,
ERFNAME TYPE STRING,
ERFDAT TYPE STRING,
FIVOR TYPE STRING,
KNZAEPO TYPE STRING,
DEAKTIV TYPE STRING,
LOEVM TYPE STRING,
FMA_OBJNR TYPE STRING,
AENNAME TYPE STRING,
AENDAT TYPE STRING,
FICTR TYPE STRING,
KRTYP TYPE STRING,
KRGRP TYPE STRING,
NDAKZ TYPE STRING,
AZPKZ TYPE STRING,
VPTYP TYPE STRING,
FIPEX TYPE STRING,
COLLROL TYPE STRING,
COLLTYP TYPE STRING,
AUGRP TYPE STRING,
BUTYP TYPE STRING,
AUSART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_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_TXI_FMFPO_STR-MANDT sy-vline 
WA_TXI_FMFPO_STR-FIKRS sy-vline 
WA_TXI_FMFPO_STR-FIPOS sy-vline 
WA_TXI_FMFPO_STR-DATBIS sy-vline 
WA_TXI_FMFPO_STR-DATAB sy-vline 
WA_TXI_FMFPO_STR-POSIT sy-vline 
WA_TXI_FMFPO_STR-ERFNAME sy-vline 
WA_TXI_FMFPO_STR-ERFDAT sy-vline 
WA_TXI_FMFPO_STR-FIVOR sy-vline 
WA_TXI_FMFPO_STR-KNZAEPO sy-vline 
WA_TXI_FMFPO_STR-DEAKTIV sy-vline 
WA_TXI_FMFPO_STR-LOEVM sy-vline 
WA_TXI_FMFPO_STR-FMA_OBJNR sy-vline 
WA_TXI_FMFPO_STR-AENNAME sy-vline 
WA_TXI_FMFPO_STR-AENDAT sy-vline 
WA_TXI_FMFPO_STR-FICTR sy-vline 
WA_TXI_FMFPO_STR-KRTYP sy-vline 
WA_TXI_FMFPO_STR-KRGRP sy-vline 
WA_TXI_FMFPO_STR-NDAKZ sy-vline 
WA_TXI_FMFPO_STR-AZPKZ sy-vline 
WA_TXI_FMFPO_STR-VPTYP sy-vline 
WA_TXI_FMFPO_STR-FIPEX sy-vline 
WA_TXI_FMFPO_STR-COLLROL sy-vline 
WA_TXI_FMFPO_STR-COLLTYP sy-vline 
WA_TXI_FMFPO_STR-AUGRP sy-vline 
WA_TXI_FMFPO_STR-BUTYP sy-vline 
WA_TXI_FMFPO_STR-AUSART sy-vline      INTO ld_text SEPARATED BY SPACE.

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