ABAP Select data from SAP table IEWMPICUSTARE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEWMPICUSTARE
*  INTO TABLE @DATA(IT_IEWMPICUSTARE2).
*--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_IEWMPICUSTARE INDEX 1 INTO DATA(WA_IEWMPICUSTARE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEWMPICUSTARE>-MANDT = 1.
<IEWMPICUSTARE>-PHYSICALINVENTORYAREA = 1.
<IEWMPICUSTARE>-PHYSICALINVENTORYAREAUUID = 1.
<IEWMPICUSTARE>-PHYSICALINVENTORYISPUTAWAY = 1.
<IEWMPICUSTARE>-LOWSTOCKCHECKISWITHPINV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEWMPICUSTARE-LOWSTOCKCHECKISWITHOUTPINV, sy-vline,
  WA_IEWMPICUSTARE-POSTGAFTCTENTRYISSIMULTANEOUS, sy-vline,
  WA_IEWMPICUSTARE-BOOKQUANTITYISDSPD, sy-vline,
  WA_IEWMPICUSTARE-PINVITEMOBJECTSISDSPD, sy-vline,
  WA_IEWMPICUSTARE-PINVHNDLGUNITCOMPLETEISALLOWED, sy-vline,
  WA_IEWMPICUSTARE-PINVHNDLGUNITCOUNTINGMETHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEWMPICUSTARE 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_IEWMPICUSTARE 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_IEWMPICUSTARE INTO WA_IEWMPICUSTARE.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IEWMPICUSTARE_STR, 
MANDT TYPE STRING,
PHYSICALINVENTORYAREA TYPE STRING,
PHYSICALINVENTORYAREAUUID TYPE STRING,
PHYSICALINVENTORYISPUTAWAY TYPE STRING,
LOWSTOCKCHECKISWITHPINV TYPE STRING,
LOWSTOCKCHECKISWITHOUTPINV TYPE STRING,
POSTGAFTCTENTRYISSIMULTANEOUS TYPE STRING,
BOOKQUANTITYISDSPD TYPE STRING,
PINVITEMOBJECTSISDSPD TYPE STRING,
PINVHNDLGUNITCOMPLETEISALLOWED TYPE STRING,
PINVHNDLGUNITCOUNTINGMETHOD TYPE STRING,
ITEMOBJECTSINPINVDOCISPRINTED TYPE STRING,
THRESHOLDOFPINVQUANTITY TYPE STRING,
PINVCOMPLETENESSCHECKISOFFLINE TYPE STRING,
SERIALNUMBERINPINVISDSPD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEWMPICUSTARE_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_IEWMPICUSTARE_STR-MANDT sy-vline 
WA_IEWMPICUSTARE_STR-PHYSICALINVENTORYAREA sy-vline 
WA_IEWMPICUSTARE_STR-PHYSICALINVENTORYAREAUUID sy-vline 
WA_IEWMPICUSTARE_STR-PHYSICALINVENTORYISPUTAWAY sy-vline 
WA_IEWMPICUSTARE_STR-LOWSTOCKCHECKISWITHPINV sy-vline 
WA_IEWMPICUSTARE_STR-LOWSTOCKCHECKISWITHOUTPINV sy-vline 
WA_IEWMPICUSTARE_STR-POSTGAFTCTENTRYISSIMULTANEOUS sy-vline 
WA_IEWMPICUSTARE_STR-BOOKQUANTITYISDSPD sy-vline 
WA_IEWMPICUSTARE_STR-PINVITEMOBJECTSISDSPD sy-vline 
WA_IEWMPICUSTARE_STR-PINVHNDLGUNITCOMPLETEISALLOWED sy-vline 
WA_IEWMPICUSTARE_STR-PINVHNDLGUNITCOUNTINGMETHOD sy-vline 
WA_IEWMPICUSTARE_STR-ITEMOBJECTSINPINVDOCISPRINTED sy-vline 
WA_IEWMPICUSTARE_STR-THRESHOLDOFPINVQUANTITY sy-vline 
WA_IEWMPICUSTARE_STR-PINVCOMPLETENESSCHECKISOFFLINE sy-vline 
WA_IEWMPICUSTARE_STR-SERIALNUMBERINPINVISDSPD sy-vline      INTO ld_text SEPARATED BY SPACE.

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