ABAP Select data from SAP table PMATDOCEXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMATDOCEXT
*  INTO TABLE @DATA(IT_PMATDOCEXT2).
*--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_PMATDOCEXT INDEX 1 INTO DATA(WA_PMATDOCEXT2).


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

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

ENDLOOP.

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

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


*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_PMATDOCEXT-STOCKIDENTIFYINGMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATDOCEXT-STOCKIDENTIFYINGMATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMATDOCEXT-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATDOCEXT-MATERIALBASEUNIT.
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_PMATDOCEXT_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,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
INVENTORYSTOCKTYPE TYPE STRING,
SPECIALSTOCKIDFGSTOCKOWNER TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
MATLSTKCHANGEQTYINBASEUNIT TYPE STRING,
COMPANYCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMATDOCEXT_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_PMATDOCEXT_STR-MANDT sy-vline 
WA_PMATDOCEXT_STR-STOCKIDENTIFYINGMATERIAL sy-vline 
WA_PMATDOCEXT_STR-PLANT sy-vline 
WA_PMATDOCEXT_STR-STOCKIDFGSTORAGELOCATION sy-vline 
WA_PMATDOCEXT_STR-STOCKIDENTIFYINGBATCH sy-vline 
WA_PMATDOCEXT_STR-SPECIALSTOCKIDFGSUPPLIER sy-vline 
WA_PMATDOCEXT_STR-SPECIALSTOCKIDFGSALESORDER sy-vline 
WA_PMATDOCEXT_STR-SPECIALSTOCKIDFGSALESORDERITEM sy-vline 
WA_PMATDOCEXT_STR-SPECIALSTOCKIDFGWBSELEMENT sy-vline 
WA_PMATDOCEXT_STR-SPECIALSTOCKIDFGCUSTOMER sy-vline 
WA_PMATDOCEXT_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_PMATDOCEXT_STR-INVENTORYSTOCKTYPE sy-vline 
WA_PMATDOCEXT_STR-SPECIALSTOCKIDFGSTOCKOWNER sy-vline 
WA_PMATDOCEXT_STR-MATERIALBASEUNIT sy-vline 
WA_PMATDOCEXT_STR-MATLSTKCHANGEQTYINBASEUNIT sy-vline 
WA_PMATDOCEXT_STR-COMPANYCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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