ABAP Select data from SAP table WRF_POHF_WORKLIST_POM_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRF_POHF_WORKLIST_POM_STY
*  INTO TABLE @DATA(IT_WRF_POHF_WORKLIST_POM_STY2).
*--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_WRF_POHF_WORKLIST_POM_STY INDEX 1 INTO DATA(WA_WRF_POHF_WORKLIST_POM_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRF_POHF_WORKLIST_POM_STY>-NODE_KEY = 1.
<WRF_POHF_WORKLIST_POM_STY>-LIFNR = 1.
<WRF_POHF_WORKLIST_POM_STY>-EKORG = 1.
<WRF_POHF_WORKLIST_POM_STY>-EKGRP = 1.
<WRF_POHF_WORKLIST_POM_STY>-POHF_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRF_POHF_WORKLIST_POM_STY-EBELN, sy-vline,
  WA_WRF_POHF_WORKLIST_POM_STY-OTB_STATUS, sy-vline,
  WA_WRF_POHF_WORKLIST_POM_STY-FIXPO, sy-vline,
  WA_WRF_POHF_WORKLIST_POM_STY-WAERS, sy-vline,
  WA_WRF_POHF_WORKLIST_POM_STY-SUM_NETWR, sy-vline,
  WA_WRF_POHF_WORKLIST_POM_STY-FRGSX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRF_POHF_WORKLIST_POM_STY 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_WRF_POHF_WORKLIST_POM_STY 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_WRF_POHF_WORKLIST_POM_STY INTO WA_WRF_POHF_WORKLIST_POM_STY.


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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRF_POHF_WORKLIST_POM_STY-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_POHF_WORKLIST_POM_STY-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BSTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRF_POHF_WORKLIST_POM_STY-BSTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_POHF_WORKLIST_POM_STY-BSTME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRF_POHF_WORKLIST_POM_STY-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_POHF_WORKLIST_POM_STY-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WRF_POHF_WORKLIST_POM_STY-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_POHF_WORKLIST_POM_STY-MATNR.
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_WRF_POHF_WORKLIST_POM_STY_STR, 
NODE_KEY TYPE STRING,
LIFNR TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
POHF_TYPE TYPE STRING,
EBELN TYPE STRING,
OTB_STATUS TYPE STRING,
FIXPO TYPE STRING,
WAERS TYPE STRING,
SUM_NETWR TYPE STRING,
FRGSX TYPE STRING,
FRGRL TYPE STRING,
POL_ID TYPE STRING,
POHF_ID TYPE STRING,
BSART TYPE STRING,
BSTYP TYPE STRING,
BEDAT TYPE STRING,
WERKS TYPE STRING,
MENGE TYPE STRING,
NETPR TYPE STRING,
MEINS TYPE STRING,
BSTME TYPE STRING,
BPRME TYPE STRING,
MATNR TYPE STRING,
LATEST_PO_DATE TYPE STRING,
DATECTRL_STATUS TYPE STRING,
SUBMI TYPE STRING,
LOEKZ TYPE STRING,
STAPO TYPE STRING,
NETWR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRF_POHF_WORKLIST_POM_STY_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_WRF_POHF_WORKLIST_POM_STY_STR-NODE_KEY sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-LIFNR sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-EKORG sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-EKGRP sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-POHF_TYPE sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-EBELN sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-OTB_STATUS sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-FIXPO sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-WAERS sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-SUM_NETWR sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-FRGSX sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-FRGRL sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-POL_ID sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-POHF_ID sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-BSART sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-BSTYP sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-BEDAT sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-WERKS sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-MENGE sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-NETPR sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-MEINS sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-BSTME sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-BPRME sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-MATNR sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-LATEST_PO_DATE sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-DATECTRL_STATUS sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-SUBMI sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-LOEKZ sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-STAPO sy-vline 
WA_WRF_POHF_WORKLIST_POM_STY_STR-NETWR sy-vline      INTO ld_text SEPARATED BY SPACE.

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