ABAP Select data from SAP table H_TMFK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM H_TMFK
*  INTO TABLE @DATA(IT_H_TMFK2).
*--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_H_TMFK INDEX 1 INTO DATA(WA_H_TMFK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<H_TMFK>-MANDT = 1.
<H_TMFK>-LFART = 1.
<H_TMFK>-LFTYP = 1.
<H_TMFK>-KAPPL = 1.
<H_TMFK>-NUMKI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_H_TMFK-NUMKE, sy-vline,
  WA_H_TMFK-INCPO, sy-vline,
  WA_H_TMFK-RFBFK, sy-vline,
  WA_H_TMFK-LFARTS, sy-vline,
  WA_H_TMFK-KALSMK, sy-vline,
  WA_H_TMFK-KSCHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_H_TMFK 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_H_TMFK 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_H_TMFK INTO WA_H_TMFK.


*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_H_TMFK_STR, 
MANDT TYPE STRING,
LFART TYPE STRING,
LFTYP TYPE STRING,
KAPPL TYPE STRING,
NUMKI TYPE STRING,
NUMKE TYPE STRING,
INCPO TYPE STRING,
RFBFK TYPE STRING,
LFARTS TYPE STRING,
KALSMK TYPE STRING,
KSCHL TYPE STRING,
ABART TYPE STRING,
NARVF TYPE STRING,
STATI TYPE STRING,
LFART_RL TYPE STRING,
RELEP TYPE STRING,
VTEXT TYPE STRING,
KALSMP TYPE STRING,
PARGK TYPE STRING,
PARGP TYPE STRING,
KALVG TYPE STRING,
TEXT TYPE STRING,
WERKM TYPE STRING,
PRDVO TYPE STRING,
INFOL TYPE STRING,
XBLNR_FI TYPE STRING,
XRBLN_FI TYPE STRING,
BLART TYPE STRING,
LTEXT TYPE STRING,
XNEGP TYPE STRING,
WZFBD TYPE STRING,
WZLSPR TYPE STRING,
WZLSPL TYPE STRING,
TEXTL TYPE STRING,
LFGRU_VO TYPE STRING,
BEZEI TYPE STRING,
KTOSL_VE TYPE STRING,
TEXT_VE TYPE STRING,
KTOSL_VM TYPE STRING,
KIDNO_LF TYPE STRING,
XVALGS TYPE STRING,
KAPPL_NA TYPE STRING,
WZUSPL TYPE STRING,
WKIDSP TYPE STRING,
TXTGR TYPE STRING,
TDID TYPE STRING,
VTEXT_GT TYPE STRING,
TXTGR_I TYPE STRING,
TDID_I TYPE STRING,
WPOINT TYPE STRING,
WPYCUR TYPE STRING,
KUDVO TYPE STRING,
PRCHGRP TYPE STRING,
PRCHGRPTXT TYPE STRING,
AR_OBJECT TYPE STRING,
OBJECTTEXT TYPE STRING,
KURST TYPE STRING,
CURVW TYPE STRING,
WERN TYPE STRING,
VTEXT_NA TYPE STRING,
KSCHLP TYPE STRING,
TDTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_H_TMFK_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_H_TMFK_STR-MANDT sy-vline 
WA_H_TMFK_STR-LFART sy-vline 
WA_H_TMFK_STR-LFTYP sy-vline 
WA_H_TMFK_STR-KAPPL sy-vline 
WA_H_TMFK_STR-NUMKI sy-vline 
WA_H_TMFK_STR-NUMKE sy-vline 
WA_H_TMFK_STR-INCPO sy-vline 
WA_H_TMFK_STR-RFBFK sy-vline 
WA_H_TMFK_STR-LFARTS sy-vline 
WA_H_TMFK_STR-KALSMK sy-vline 
WA_H_TMFK_STR-KSCHL sy-vline 
WA_H_TMFK_STR-ABART sy-vline 
WA_H_TMFK_STR-NARVF sy-vline 
WA_H_TMFK_STR-STATI sy-vline 
WA_H_TMFK_STR-LFART_RL sy-vline 
WA_H_TMFK_STR-RELEP sy-vline 
WA_H_TMFK_STR-VTEXT sy-vline 
WA_H_TMFK_STR-KALSMP sy-vline 
WA_H_TMFK_STR-PARGK sy-vline 
WA_H_TMFK_STR-PARGP sy-vline 
WA_H_TMFK_STR-KALVG sy-vline 
WA_H_TMFK_STR-TEXT sy-vline 
WA_H_TMFK_STR-WERKM sy-vline 
WA_H_TMFK_STR-PRDVO sy-vline 
WA_H_TMFK_STR-INFOL sy-vline 
WA_H_TMFK_STR-XBLNR_FI sy-vline 
WA_H_TMFK_STR-XRBLN_FI sy-vline 
WA_H_TMFK_STR-BLART sy-vline 
WA_H_TMFK_STR-LTEXT sy-vline 
WA_H_TMFK_STR-XNEGP sy-vline 
WA_H_TMFK_STR-WZFBD sy-vline 
WA_H_TMFK_STR-WZLSPR sy-vline 
WA_H_TMFK_STR-WZLSPL sy-vline 
WA_H_TMFK_STR-TEXTL sy-vline 
WA_H_TMFK_STR-LFGRU_VO sy-vline 
WA_H_TMFK_STR-BEZEI sy-vline 
WA_H_TMFK_STR-KTOSL_VE sy-vline 
WA_H_TMFK_STR-TEXT_VE sy-vline 
WA_H_TMFK_STR-KTOSL_VM sy-vline 
WA_H_TMFK_STR-KIDNO_LF sy-vline 
WA_H_TMFK_STR-XVALGS sy-vline 
WA_H_TMFK_STR-KAPPL_NA sy-vline 
WA_H_TMFK_STR-WZUSPL sy-vline 
WA_H_TMFK_STR-WKIDSP sy-vline 
WA_H_TMFK_STR-TXTGR sy-vline 
WA_H_TMFK_STR-TDID sy-vline 
WA_H_TMFK_STR-VTEXT_GT sy-vline 
WA_H_TMFK_STR-TXTGR_I sy-vline 
WA_H_TMFK_STR-TDID_I sy-vline 
WA_H_TMFK_STR-WPOINT sy-vline 
WA_H_TMFK_STR-WPYCUR sy-vline 
WA_H_TMFK_STR-KUDVO sy-vline 
WA_H_TMFK_STR-PRCHGRP sy-vline 
WA_H_TMFK_STR-PRCHGRPTXT sy-vline 
WA_H_TMFK_STR-AR_OBJECT sy-vline 
WA_H_TMFK_STR-OBJECTTEXT sy-vline 
WA_H_TMFK_STR-KURST sy-vline 
WA_H_TMFK_STR-CURVW sy-vline 
WA_H_TMFK_STR-WERN sy-vline 
WA_H_TMFK_STR-VTEXT_NA sy-vline 
WA_H_TMFK_STR-KSCHLP sy-vline 
WA_H_TMFK_STR-TDTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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