ABAP Select data from SAP table IFMRPWTDOC into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IFMRPWTDOC 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 IFMRPWTDOC. 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 IFMRPWTDOC 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_IFMRPWTDOC TYPE STANDARD TABLE OF IFMRPWTDOC,
      WA_IFMRPWTDOC TYPE IFMRPWTDOC,
      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: <IFMRPWTDOC> TYPE IFMRPWTDOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFMRPWTDOC
*  INTO TABLE @DATA(IT_IFMRPWTDOC2).
*--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_IFMRPWTDOC INDEX 1 INTO DATA(WA_IFMRPWTDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFMRPWTDOC>-WT_TYPE = 1.
<IFMRPWTDOC>-WT_CODE = 1.
<IFMRPWTDOC>-REVENUE = 1.
<IFMRPWTDOC>-BKPF = 1.
<IFMRPWTDOC>-STYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFMRPWTDOC-TCODE, sy-vline,
  WA_IFMRPWTDOC-BLDAT, sy-vline,
  WA_IFMRPWTDOC-BLART, sy-vline,
  WA_IFMRPWTDOC-BUKRS, sy-vline,
  WA_IFMRPWTDOC-BUDAT, sy-vline,
  WA_IFMRPWTDOC-MONAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFMRPWTDOC 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_IFMRPWTDOC 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_IFMRPWTDOC INTO WA_IFMRPWTDOC.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOTKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-LOTKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-LOTKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DBBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-DBBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-DBBLG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REV_BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-REV_BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-REV_BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REV_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-REV_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-REV_GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CLR_BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-CLR_BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-CLR_BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CLR_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFMRPWTDOC-CLR_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMRPWTDOC-CLR_GJAHR.
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_IFMRPWTDOC_STR, 
WT_TYPE TYPE STRING,
WT_CODE TYPE STRING,
REVENUE TYPE STRING,
BKPF TYPE STRING,
STYPE TYPE STRING,
TCODE TYPE STRING,
BLDAT TYPE STRING,
BLART TYPE STRING,
BUKRS TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
BELNR TYPE STRING,
WWERT TYPE STRING,
XBLNR TYPE STRING,
BVORG TYPE STRING,
BKTXT TYPE STRING,
PARGB TYPE STRING,
AUGLV TYPE STRING,
VBUND TYPE STRING,
XMWST TYPE STRING,
DOCID TYPE STRING,
BARCD TYPE STRING,
STODT TYPE STRING,
BRNCH TYPE STRING,
NUMPG TYPE STRING,
STGRD TYPE STRING,
KURSF_M TYPE STRING,
AUGTX TYPE STRING,
XPRFG TYPE STRING,
PSOTY TYPE STRING,
PSOAK TYPE STRING,
PSOKS TYPE STRING,
PSOSG TYPE STRING,
PSOFN TYPE STRING,
LOTKZ TYPE STRING,
XLOTE TYPE STRING,
PSODT TYPE STRING,
PSOTM TYPE STRING,
DBBLG TYPE STRING,
LOTEXNO TYPE STRING,
SENDE TYPE STRING,
BSEG_T TYPE STRING,
REV_XREF1_HD TYPE STRING,
REV_XREF2_HD TYPE STRING,
CLEARING TYPE STRING,
BKPF TYPE STRING,
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,
BSEG_T TYPE STRING,
REV_BELNR TYPE STRING,
REV_GJAHR TYPE STRING,
REV_BUKRS TYPE STRING,
CLR_BELNR TYPE STRING,
CLR_GJAHR TYPE STRING,
CLR_BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFMRPWTDOC_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_IFMRPWTDOC_STR-WT_TYPE sy-vline 
WA_IFMRPWTDOC_STR-WT_CODE sy-vline 
WA_IFMRPWTDOC_STR-REVENUE sy-vline 
WA_IFMRPWTDOC_STR-BKPF sy-vline 
WA_IFMRPWTDOC_STR-STYPE sy-vline 
WA_IFMRPWTDOC_STR-TCODE sy-vline 
WA_IFMRPWTDOC_STR-BLDAT sy-vline 
WA_IFMRPWTDOC_STR-BLART sy-vline 
WA_IFMRPWTDOC_STR-BUKRS sy-vline 
WA_IFMRPWTDOC_STR-BUDAT sy-vline 
WA_IFMRPWTDOC_STR-MONAT sy-vline 
WA_IFMRPWTDOC_STR-WAERS sy-vline 
WA_IFMRPWTDOC_STR-KURSF sy-vline 
WA_IFMRPWTDOC_STR-BELNR sy-vline 
WA_IFMRPWTDOC_STR-WWERT sy-vline 
WA_IFMRPWTDOC_STR-XBLNR sy-vline 
WA_IFMRPWTDOC_STR-BVORG sy-vline 
WA_IFMRPWTDOC_STR-BKTXT sy-vline 
WA_IFMRPWTDOC_STR-PARGB sy-vline 
WA_IFMRPWTDOC_STR-AUGLV sy-vline 
WA_IFMRPWTDOC_STR-VBUND sy-vline 
WA_IFMRPWTDOC_STR-XMWST sy-vline 
WA_IFMRPWTDOC_STR-DOCID sy-vline 
WA_IFMRPWTDOC_STR-BARCD sy-vline 
WA_IFMRPWTDOC_STR-STODT sy-vline 
WA_IFMRPWTDOC_STR-BRNCH sy-vline 
WA_IFMRPWTDOC_STR-NUMPG sy-vline 
WA_IFMRPWTDOC_STR-STGRD sy-vline 
WA_IFMRPWTDOC_STR-KURSF_M sy-vline 
WA_IFMRPWTDOC_STR-AUGTX sy-vline 
WA_IFMRPWTDOC_STR-XPRFG sy-vline 
WA_IFMRPWTDOC_STR-PSOTY sy-vline 
WA_IFMRPWTDOC_STR-PSOAK sy-vline 
WA_IFMRPWTDOC_STR-PSOKS sy-vline 
WA_IFMRPWTDOC_STR-PSOSG sy-vline 
WA_IFMRPWTDOC_STR-PSOFN sy-vline 
WA_IFMRPWTDOC_STR-LOTKZ sy-vline 
WA_IFMRPWTDOC_STR-XLOTE sy-vline 
WA_IFMRPWTDOC_STR-PSODT sy-vline 
WA_IFMRPWTDOC_STR-PSOTM sy-vline 
WA_IFMRPWTDOC_STR-DBBLG sy-vline 
WA_IFMRPWTDOC_STR-LOTEXNO sy-vline 
WA_IFMRPWTDOC_STR-SENDE sy-vline 
WA_IFMRPWTDOC_STR-BSEG_T sy-vline 
WA_IFMRPWTDOC_STR-REV_XREF1_HD sy-vline 
WA_IFMRPWTDOC_STR-REV_XREF2_HD sy-vline 
WA_IFMRPWTDOC_STR-CLEARING sy-vline 
WA_IFMRPWTDOC_STR-BKPF sy-vline 
WA_IFMRPWTDOC_STR-BLART sy-vline 
WA_IFMRPWTDOC_STR-BUKRS sy-vline 
WA_IFMRPWTDOC_STR-BLDAT sy-vline 
WA_IFMRPWTDOC_STR-BUDAT sy-vline 
WA_IFMRPWTDOC_STR-MONAT sy-vline 
WA_IFMRPWTDOC_STR-WAERS sy-vline 
WA_IFMRPWTDOC_STR-KURSF sy-vline 
WA_IFMRPWTDOC_STR-WWERT sy-vline 
WA_IFMRPWTDOC_STR-XBLNR sy-vline 
WA_IFMRPWTDOC_STR-BKTXT sy-vline 
WA_IFMRPWTDOC_STR-AUGTX sy-vline 
WA_IFMRPWTDOC_STR-AUGLV sy-vline 
WA_IFMRPWTDOC_STR-BSEG_T sy-vline 
WA_IFMRPWTDOC_STR-REV_BELNR sy-vline 
WA_IFMRPWTDOC_STR-REV_GJAHR sy-vline 
WA_IFMRPWTDOC_STR-REV_BUKRS sy-vline 
WA_IFMRPWTDOC_STR-CLR_BELNR sy-vline 
WA_IFMRPWTDOC_STR-CLR_GJAHR sy-vline 
WA_IFMRPWTDOC_STR-CLR_BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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