ABAP Select data from SAP table IFMRPWTCLRBKPF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFMRPWTCLRBKPF
*  INTO TABLE @DATA(IT_IFMRPWTCLRBKPF2).
*--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_IFMRPWTCLRBKPF INDEX 1 INTO DATA(WA_IFMRPWTCLRBKPF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFMRPWTCLRBKPF>-BLART = 1.
<IFMRPWTCLRBKPF>-BUKRS = 1.
<IFMRPWTCLRBKPF>-BLDAT = 1.
<IFMRPWTCLRBKPF>-BUDAT = 1.
<IFMRPWTCLRBKPF>-MONAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFMRPWTCLRBKPF-WAERS, sy-vline,
  WA_IFMRPWTCLRBKPF-KURSF, sy-vline,
  WA_IFMRPWTCLRBKPF-WWERT, sy-vline,
  WA_IFMRPWTCLRBKPF-XBLNR, sy-vline,
  WA_IFMRPWTCLRBKPF-BKTXT, sy-vline,
  WA_IFMRPWTCLRBKPF-AUGTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFMRPWTCLRBKPF 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_IFMRPWTCLRBKPF 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_IFMRPWTCLRBKPF INTO WA_IFMRPWTCLRBKPF.


*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 EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTCLRBKPF-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTCLRBKPF-KURSF.
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_IFMRPWTCLRBKPF_STR, 
BLART TYPE STRING,
BUKRS TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
WWERT TYPE STRING,
XBLNR TYPE STRING,
BKTXT TYPE STRING,
AUGTX TYPE STRING,
AUGLV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFMRPWTCLRBKPF_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_IFMRPWTCLRBKPF_STR-BLART sy-vline 
WA_IFMRPWTCLRBKPF_STR-BUKRS sy-vline 
WA_IFMRPWTCLRBKPF_STR-BLDAT sy-vline 
WA_IFMRPWTCLRBKPF_STR-BUDAT sy-vline 
WA_IFMRPWTCLRBKPF_STR-MONAT sy-vline 
WA_IFMRPWTCLRBKPF_STR-WAERS sy-vline 
WA_IFMRPWTCLRBKPF_STR-KURSF sy-vline 
WA_IFMRPWTCLRBKPF_STR-WWERT sy-vline 
WA_IFMRPWTCLRBKPF_STR-XBLNR sy-vline 
WA_IFMRPWTCLRBKPF_STR-BKTXT sy-vline 
WA_IFMRPWTCLRBKPF_STR-AUGTX sy-vline 
WA_IFMRPWTCLRBKPF_STR-AUGLV sy-vline      INTO ld_text SEPARATED BY SPACE.

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