ABAP Select data from SAP table IACTLSTKPEACEPOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACTLSTKPEACEPOS
*  INTO TABLE @DATA(IT_IACTLSTKPEACEPOS2).
*--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_IACTLSTKPEACEPOS INDEX 1 INTO DATA(WA_IACTLSTKPEACEPOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACTLSTKPEACEPOS>-MANDT = 1.
<IACTLSTKPEACEPOS>-DFSASSGMTUUID = 1.
<IACTLSTKPEACEPOS>-FLXBLMATLPLNGOBJVARIANTID = 1.
<IACTLSTKPEACEPOS>-FLXMTPLOBJVARMODELITMID = 1.
<IACTLSTKPEACEPOS>-FORCEELEMENTORGSRCEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACTLSTKPEACEPOS-DFSPOSITIONID, sy-vline,
  WA_IACTLSTKPEACEPOS-FLXBLMATLPLNGOBJECTID, sy-vline,
  WA_IACTLSTKPEACEPOS-DFSASSGMTUSAGETYPE, sy-vline,
  WA_IACTLSTKPEACEPOS-DFSASSGMTVALDTYSTRTDATE, sy-vline,
  WA_IACTLSTKPEACEPOS-DFSASSGMTVALDTYENDDATE, sy-vline,
  WA_IACTLSTKPEACEPOS-DFSASSGMTSTATUSCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACTLSTKPEACEPOS 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_IACTLSTKPEACEPOS 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_IACTLSTKPEACEPOS INTO WA_IACTLSTKPEACEPOS.


*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 MATN1, internal->external for field FLXMTPLOBJVARMODELPRODUCTID
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IACTLSTKPEACEPOS-FLXMTPLOBJVARMODELPRODUCTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACTLSTKPEACEPOS-FLXMTPLOBJVARMODELPRODUCTID.
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_IACTLSTKPEACEPOS_STR, 
MANDT TYPE STRING,
DFSASSGMTUUID TYPE STRING,
FLXBLMATLPLNGOBJVARIANTID TYPE STRING,
FLXMTPLOBJVARMODELITMID TYPE STRING,
FORCEELEMENTORGSRCEID TYPE STRING,
DFSPOSITIONID TYPE STRING,
FLXBLMATLPLNGOBJECTID TYPE STRING,
DFSASSGMTUSAGETYPE TYPE STRING,
DFSASSGMTVALDTYSTRTDATE TYPE STRING,
DFSASSGMTVALDTYENDDATE TYPE STRING,
DFSASSGMTSTATUSCODE TYPE STRING,
DFSOBJECTVALDTYSTARTDATE TYPE STRING,
DFSOBJECTVALDTYENDDATE TYPE STRING,
FLXBLMATLPLNGOBJECTUUID TYPE STRING,
FLXBLMATLPLNGOBJVARIANTUUID TYPE STRING,
FLXMTPLOBJVARMODELPRODUCTID TYPE STRING,
FRCELMNTORGPURGORG TYPE STRING,
FRCELMNTORGPURGGROUP TYPE STRING,
FRCELMNTORGSTOCKSTORAGELOC TYPE STRING,
FRCELMNTORGSTOCKPLANT TYPE STRING,
ACTUALFLXMTPLOBJVARAVAILVAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACTLSTKPEACEPOS_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_IACTLSTKPEACEPOS_STR-MANDT sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSASSGMTUUID sy-vline 
WA_IACTLSTKPEACEPOS_STR-FLXBLMATLPLNGOBJVARIANTID sy-vline 
WA_IACTLSTKPEACEPOS_STR-FLXMTPLOBJVARMODELITMID sy-vline 
WA_IACTLSTKPEACEPOS_STR-FORCEELEMENTORGSRCEID sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSPOSITIONID sy-vline 
WA_IACTLSTKPEACEPOS_STR-FLXBLMATLPLNGOBJECTID sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSASSGMTUSAGETYPE sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSASSGMTVALDTYSTRTDATE sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSASSGMTVALDTYENDDATE sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSASSGMTSTATUSCODE sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSOBJECTVALDTYSTARTDATE sy-vline 
WA_IACTLSTKPEACEPOS_STR-DFSOBJECTVALDTYENDDATE sy-vline 
WA_IACTLSTKPEACEPOS_STR-FLXBLMATLPLNGOBJECTUUID sy-vline 
WA_IACTLSTKPEACEPOS_STR-FLXBLMATLPLNGOBJVARIANTUUID sy-vline 
WA_IACTLSTKPEACEPOS_STR-FLXMTPLOBJVARMODELPRODUCTID sy-vline 
WA_IACTLSTKPEACEPOS_STR-FRCELMNTORGPURGORG sy-vline 
WA_IACTLSTKPEACEPOS_STR-FRCELMNTORGPURGGROUP sy-vline 
WA_IACTLSTKPEACEPOS_STR-FRCELMNTORGSTOCKSTORAGELOC sy-vline 
WA_IACTLSTKPEACEPOS_STR-FRCELMNTORGSTOCKPLANT sy-vline 
WA_IACTLSTKPEACEPOS_STR-ACTUALFLXMTPLOBJVARAVAILVAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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