ABAP Select data from SAP table PMATLWHSESTKCHK2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PMATLWHSESTKCHK2 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 PMATLWHSESTKCHK2. 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 PMATLWHSESTKCHK2 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_PMATLWHSESTKCHK2 TYPE STANDARD TABLE OF PMATLWHSESTKCHK2,
      WA_PMATLWHSESTKCHK2 TYPE PMATLWHSESTKCHK2,
      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: <PMATLWHSESTKCHK2> TYPE PMATLWHSESTKCHK2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PMATLWHSESTKCHK2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PMATLWHSESTKCHK2
  INTO TABLE IT_PMATLWHSESTKCHK2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMATLWHSESTKCHK2
*  INTO TABLE @DATA(IT_PMATLWHSESTKCHK22).
*--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_PMATLWHSESTKCHK2 INDEX 1 INTO DATA(WA_PMATLWHSESTKCHK22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PMATLWHSESTKCHK2 ASSIGNING <PMATLWHSESTKCHK2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMATLWHSESTKCHK2>-MANDT = 1.
<PMATLWHSESTKCHK2>-STOCKIDENTIFYINGMATERIAL = 1.
<PMATLWHSESTKCHK2>-PLANT = 1.
<PMATLWHSESTKCHK2>-STOCKIDFGSTORAGELOCATION = 1.
<PMATLWHSESTKCHK2>-STOCKIDENTIFYINGBATCH = 1.

ENDLOOP.

LOOP AT IT_PMATLWHSESTKCHK2 INTO WA_PMATLWHSESTKCHK2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSUPPLIER, sy-vline,
  WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSALESORDER, sy-vline,
  WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSALESORDERITEM, sy-vline,
  WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGWBSELEMENT, sy-vline,
  WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGCUSTOMER, sy-vline,
  WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSTOCKOWNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMATLWHSESTKCHK2 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_PMATLWHSESTKCHK2 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_PMATLWHSESTKCHK2 INTO WA_PMATLWHSESTKCHK2.


*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 STOCKIDENTIFYINGMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-STOCKIDENTIFYINGMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-STOCKIDENTIFYINGMATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPECIALSTOCKIDFGSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPECIALSTOCKIDFGSALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSALESORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field SPECIALSTOCKIDFGWBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGWBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGWBSELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPECIALSTOCKIDFGCUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGCUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGCUSTOMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SPECIALSTOCKIDFGSTOCKOWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSTOCKOWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-SPECIALSTOCKIDFGSTOCKOWNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-MATERIALBASEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALPARALLELUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMATLWHSESTKCHK2-MATERIALPARALLELUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATLWHSESTKCHK2-MATERIALPARALLELUNIT.
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_PMATLWHSESTKCHK2_STR, 
MANDT TYPE STRING,
STOCKIDENTIFYINGMATERIAL TYPE STRING,
PLANT TYPE STRING,
STOCKIDFGSTORAGELOCATION TYPE STRING,
STOCKIDENTIFYINGBATCH TYPE STRING,
SPECIALSTOCKIDFGSUPPLIER TYPE STRING,
SPECIALSTOCKIDFGSALESORDER TYPE STRING,
SPECIALSTOCKIDFGSALESORDERITEM TYPE STRING,
SPECIALSTOCKIDFGWBSELEMENT TYPE STRING,
SPECIALSTOCKIDFGCUSTOMER TYPE STRING,
SPECIALSTOCKIDFGSTOCKOWNER TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
INVENTORYSTOCKTYPE TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
MATERIALPARALLELUNIT TYPE STRING,
MATLSTKQTYINBASEUNIT TYPE STRING,
MATLSTKQTYINPARUNIT TYPE STRING,
LASTPOSTINGDATE TYPE STRING,
LASTPOSTINGPERIOD TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEARVARIANT TYPE STRING,
COSTESTIMATE TYPE STRING,
BATCH TYPE STRING,
TODAYDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMATLWHSESTKCHK2_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_PMATLWHSESTKCHK2_STR-MANDT sy-vline 
WA_PMATLWHSESTKCHK2_STR-STOCKIDENTIFYINGMATERIAL sy-vline 
WA_PMATLWHSESTKCHK2_STR-PLANT sy-vline 
WA_PMATLWHSESTKCHK2_STR-STOCKIDFGSTORAGELOCATION sy-vline 
WA_PMATLWHSESTKCHK2_STR-STOCKIDENTIFYINGBATCH sy-vline 
WA_PMATLWHSESTKCHK2_STR-SPECIALSTOCKIDFGSUPPLIER sy-vline 
WA_PMATLWHSESTKCHK2_STR-SPECIALSTOCKIDFGSALESORDER sy-vline 
WA_PMATLWHSESTKCHK2_STR-SPECIALSTOCKIDFGSALESORDERITEM sy-vline 
WA_PMATLWHSESTKCHK2_STR-SPECIALSTOCKIDFGWBSELEMENT sy-vline 
WA_PMATLWHSESTKCHK2_STR-SPECIALSTOCKIDFGCUSTOMER sy-vline 
WA_PMATLWHSESTKCHK2_STR-SPECIALSTOCKIDFGSTOCKOWNER sy-vline 
WA_PMATLWHSESTKCHK2_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_PMATLWHSESTKCHK2_STR-INVENTORYSTOCKTYPE sy-vline 
WA_PMATLWHSESTKCHK2_STR-MATERIALBASEUNIT sy-vline 
WA_PMATLWHSESTKCHK2_STR-MATERIALPARALLELUNIT sy-vline 
WA_PMATLWHSESTKCHK2_STR-MATLSTKQTYINBASEUNIT sy-vline 
WA_PMATLWHSESTKCHK2_STR-MATLSTKQTYINPARUNIT sy-vline 
WA_PMATLWHSESTKCHK2_STR-LASTPOSTINGDATE sy-vline 
WA_PMATLWHSESTKCHK2_STR-LASTPOSTINGPERIOD sy-vline 
WA_PMATLWHSESTKCHK2_STR-COMPANYCODE sy-vline 
WA_PMATLWHSESTKCHK2_STR-FISCALYEARVARIANT sy-vline 
WA_PMATLWHSESTKCHK2_STR-COSTESTIMATE sy-vline 
WA_PMATLWHSESTKCHK2_STR-BATCH sy-vline 
WA_PMATLWHSESTKCHK2_STR-TODAYDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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