ABAP Select data from SAP table IDCFMHU_TR_KLRA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDCFMHU_TR_KLRA
*  INTO TABLE @DATA(IT_IDCFMHU_TR_KLRA2).
*--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_IDCFMHU_TR_KLRA INDEX 1 INTO DATA(WA_IDCFMHU_TR_KLRA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDCFMHU_TR_KLRA>-MANDT = 1.
<IDCFMHU_TR_KLRA>-BUKRS = 1.
<IDCFMHU_TR_KLRA>-INDUL_DATUM = 1.
<IDCFMHU_TR_KLRA>-INDUL_IDO = 1.
<IDCFMHU_TR_KLRA>-RFHA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDCFMHU_TR_KLRA-STATUS, sy-vline,
  WA_IDCFMHU_TR_KLRA-TIPUS, sy-vline,
  WA_IDCFMHU_TR_KLRA-TNAP, sy-vline,
  WA_IDCFMHU_TR_KLRA-UGY_OLDAL, sy-vline,
  WA_IDCFMHU_TR_KLRA-ELADO_FOSZLA, sy-vline,
  WA_IDCFMHU_TR_KLRA-ELADO_ALSZLA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDCFMHU_TR_KLRA 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_IDCFMHU_TR_KLRA 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_IDCFMHU_TR_KLRA INTO WA_IDCFMHU_TR_KLRA.


*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 RFHA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDCFMHU_TR_KLRA-RFHA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCFMHU_TR_KLRA-RFHA.
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_IDCFMHU_TR_KLRA_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
INDUL_DATUM TYPE STRING,
INDUL_IDO TYPE STRING,
RFHA TYPE STRING,
STATUS TYPE STRING,
TIPUS TYPE STRING,
TNAP TYPE STRING,
UGY_OLDAL TYPE STRING,
ELADO_FOSZLA TYPE STRING,
ELADO_ALSZLA TYPE STRING,
ELADO_PFSZ TYPE STRING,
VEVO_FOSZLA TYPE STRING,
VEVO_ALSZLA TYPE STRING,
VEVO_PFSZ TYPE STRING,
ERTEKPAPIR_KOD TYPE STRING,
ERTEKPAPIR_SOR TYPE STRING,
ERTEKP_JELLEG TYPE STRING,
ERTEKP_HIV TYPE STRING,
ERTEKP_NEVERTEK TYPE STRING,
ERTEKP_ARF TYPE STRING,
ERTEKP_AR TYPE STRING,
ISINKOD TYPE STRING,
ERTEKP_CIKL TYPE STRING,
VISSZA_DATUM TYPE STRING,
REPO_KAM_SZAZ TYPE STRING,
REPO_KAM_FT TYPE STRING,
REPO_KID_ID TYPE STRING,
REPO_PART_ALL TYPE STRING,
REPO_PROL_ORID TYPE STRING,
ZAROLT_DB TYPE STRING,
ZAROLAS_VEGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDCFMHU_TR_KLRA_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_IDCFMHU_TR_KLRA_STR-MANDT sy-vline 
WA_IDCFMHU_TR_KLRA_STR-BUKRS sy-vline 
WA_IDCFMHU_TR_KLRA_STR-INDUL_DATUM sy-vline 
WA_IDCFMHU_TR_KLRA_STR-INDUL_IDO sy-vline 
WA_IDCFMHU_TR_KLRA_STR-RFHA sy-vline 
WA_IDCFMHU_TR_KLRA_STR-STATUS sy-vline 
WA_IDCFMHU_TR_KLRA_STR-TIPUS sy-vline 
WA_IDCFMHU_TR_KLRA_STR-TNAP sy-vline 
WA_IDCFMHU_TR_KLRA_STR-UGY_OLDAL sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ELADO_FOSZLA sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ELADO_ALSZLA sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ELADO_PFSZ sy-vline 
WA_IDCFMHU_TR_KLRA_STR-VEVO_FOSZLA sy-vline 
WA_IDCFMHU_TR_KLRA_STR-VEVO_ALSZLA sy-vline 
WA_IDCFMHU_TR_KLRA_STR-VEVO_PFSZ sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKPAPIR_KOD sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKPAPIR_SOR sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKP_JELLEG sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKP_HIV sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKP_NEVERTEK sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKP_ARF sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKP_AR sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ISINKOD sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ERTEKP_CIKL sy-vline 
WA_IDCFMHU_TR_KLRA_STR-VISSZA_DATUM sy-vline 
WA_IDCFMHU_TR_KLRA_STR-REPO_KAM_SZAZ sy-vline 
WA_IDCFMHU_TR_KLRA_STR-REPO_KAM_FT sy-vline 
WA_IDCFMHU_TR_KLRA_STR-REPO_KID_ID sy-vline 
WA_IDCFMHU_TR_KLRA_STR-REPO_PART_ALL sy-vline 
WA_IDCFMHU_TR_KLRA_STR-REPO_PROL_ORID sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ZAROLT_DB sy-vline 
WA_IDCFMHU_TR_KLRA_STR-ZAROLAS_VEGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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