ABAP Select data from SAP table LOGEN_S_IM_PI_ITEMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LOGEN_S_IM_PI_ITEMS
*  INTO TABLE @DATA(IT_LOGEN_S_IM_PI_ITEMS2).
*--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_LOGEN_S_IM_PI_ITEMS INDEX 1 INTO DATA(WA_LOGEN_S_IM_PI_ITEMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LOGEN_S_IM_PI_ITEMS>-OUTPUTCONTROLAPPLICATIONOBJECT = 1.
<LOGEN_S_IM_PI_ITEMS>-PHYSICALINVENTORYDOCUMENTITEM = 1.
<LOGEN_S_IM_PI_ITEMS>-MATERIAL = 1.
<LOGEN_S_IM_PI_ITEMS>-BATCH = 1.
<LOGEN_S_IM_PI_ITEMS>-MATERIALNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LOGEN_S_IM_PI_ITEMS-SALESORDERITEM, sy-vline,
  WA_LOGEN_S_IM_PI_ITEMS-PHYSICALINVENTORYSTATUSTEXT, sy-vline,
  WA_LOGEN_S_IM_PI_ITEMS-PHYSICALINVENTORYSTOCKTYPENAME, sy-vline,
  WA_LOGEN_S_IM_PI_ITEMS-STORAGELOCATION, sy-vline,
  WA_LOGEN_S_IM_PI_ITEMS-WAREHOUSESTORAGEBIN, sy-vline,
  WA_LOGEN_S_IM_PI_ITEMS-ENTRYUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LOGEN_S_IM_PI_ITEMS 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_LOGEN_S_IM_PI_ITEMS 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_LOGEN_S_IM_PI_ITEMS INTO WA_LOGEN_S_IM_PI_ITEMS.


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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_LOGEN_S_IM_PI_ITEMS-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LOGEN_S_IM_PI_ITEMS-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_LOGEN_S_IM_PI_ITEMS-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LOGEN_S_IM_PI_ITEMS-FISCALYEAR.
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_LOGEN_S_IM_PI_ITEMS_STR, 
OUTPUTCONTROLAPPLICATIONOBJECT TYPE STRING,
PHYSICALINVENTORYDOCUMENTITEM TYPE STRING,
MATERIAL TYPE STRING,
BATCH TYPE STRING,
MATERIALNAME TYPE STRING,
SALESORDERITEM TYPE STRING,
PHYSICALINVENTORYSTATUSTEXT TYPE STRING,
PHYSICALINVENTORYSTOCKTYPENAME TYPE STRING,
STORAGELOCATION TYPE STRING,
WAREHOUSESTORAGEBIN TYPE STRING,
ENTRYUNIT TYPE STRING,
CURRENCY TYPE STRING,
STOCKSEGMENT TYPE STRING,
MATERIALCATEGORY TYPE STRING,
BOOKEDQUANTITY TYPE STRING,
BOOKEDVALUE TYPE STRING,
COUNTEDVALUE TYPE STRING,
VALUEPOSITIVEDIFF TYPE STRING,
VALUENEGATIVEDIFF TYPE STRING,
DEPRICIATIONVALUE TYPE STRING,
DEPRICIATIONREASONCODE TYPE STRING,
PHYSICALINVENTORYDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
COUNTEDQUANTITY TYPE STRING,
QUANTITYPOSITIVEDIFF TYPE STRING,
QUANTITYNEGATIVEDIFF TYPE STRING,
DEPRICIATIONREASON TYPE STRING,
PRICEPERITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LOGEN_S_IM_PI_ITEMS_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_LOGEN_S_IM_PI_ITEMS_STR-OUTPUTCONTROLAPPLICATIONOBJECT sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-PHYSICALINVENTORYDOCUMENTITEM sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-MATERIAL sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-BATCH sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-MATERIALNAME sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-SALESORDERITEM sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-PHYSICALINVENTORYSTATUSTEXT sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-PHYSICALINVENTORYSTOCKTYPENAME sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-STORAGELOCATION sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-WAREHOUSESTORAGEBIN sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-ENTRYUNIT sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-CURRENCY sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-STOCKSEGMENT sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-MATERIALCATEGORY sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-BOOKEDQUANTITY sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-BOOKEDVALUE sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-COUNTEDVALUE sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-VALUEPOSITIVEDIFF sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-VALUENEGATIVEDIFF sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-DEPRICIATIONVALUE sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-DEPRICIATIONREASONCODE sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-PHYSICALINVENTORYDOCUMENT sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-FISCALYEAR sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-COUNTEDQUANTITY sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-QUANTITYPOSITIVEDIFF sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-QUANTITYNEGATIVEDIFF sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-DEPRICIATIONREASON sy-vline 
WA_LOGEN_S_IM_PI_ITEMS_STR-PRICEPERITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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