ABAP Select data from SAP table RFMPPMATLBOMDET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFMPPMATLBOMDET
*  INTO TABLE @DATA(IT_RFMPPMATLBOMDET2).
*--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_RFMPPMATLBOMDET INDEX 1 INTO DATA(WA_RFMPPMATLBOMDET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFMPPMATLBOMDET>-MANDT = 1.
<RFMPPMATLBOMDET>-PLANT = 1.
<RFMPPMATLBOMDET>-MATERIAL = 1.
<RFMPPMATLBOMDET>-CROSSPLANTCONFIGURABLEPRODUCT = 1.
<RFMPPMATLBOMDET>-ARTICLECATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFMPPMATLBOMDET-BILLOFMATERIALVARIANTUSAGE, sy-vline,
  WA_RFMPPMATLBOMDET-BILLOFMATERIAL, sy-vline,
  WA_RFMPPMATLBOMDET-BILLOFMATERIALVARIANT, sy-vline,
  WA_RFMPPMATLBOMDET-BILLOFMATERIALCATEGORY, sy-vline,
  WA_RFMPPMATLBOMDET-MATFROMLOTSIZEQUANTITY, sy-vline,
  WA_RFMPPMATLBOMDET-MATERIALTOLOTSIZEQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFMPPMATLBOMDET 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_RFMPPMATLBOMDET 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_RFMPPMATLBOMDET INTO WA_RFMPPMATLBOMDET.


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

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

*Conversion exit NUMCV, internal->external for field BILLOFMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RFMPPMATLBOMDET-BILLOFMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFMPPMATLBOMDET-BILLOFMATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field BOMHEADERBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RFMPPMATLBOMDET-BOMHEADERBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFMPPMATLBOMDET-BOMHEADERBASEUNIT.
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_RFMPPMATLBOMDET_STR, 
MANDT TYPE STRING,
PLANT TYPE STRING,
MATERIAL TYPE STRING,
CROSSPLANTCONFIGURABLEPRODUCT TYPE STRING,
ARTICLECATEGORY TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,
BILLOFMATERIAL TYPE STRING,
BILLOFMATERIALVARIANT TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
MATFROMLOTSIZEQUANTITY TYPE STRING,
MATERIALTOLOTSIZEQUANTITY TYPE STRING,
BOMHEADERINTERNALCHANGECOUNT TYPE STRING,
HEADERENGINEERINGCHGNMBRDOC TYPE STRING,
BOMHEADERQUANTITYINBASEUNIT TYPE STRING,
BOMHEADERBASEUNIT TYPE STRING,
HEADERVALIDITYSTARTDATE TYPE STRING,
HEADERVALIDITYENDDATE TYPE STRING,
ISIMPLICITLYDELETED TYPE STRING,
BOMISMARKEDFORDELETION TYPE STRING,
BOMHEADERPREVIOUSCOUNTER TYPE STRING,
BOMALTERNATIVETEXT TYPE STRING,
BILLOFMATERIALSTATUS TYPE STRING,
BOMGROUP TYPE STRING,
BOMTECHNICALTYPE TYPE STRING,
BILLOFMATERIALAUTHSNGRP TYPE STRING,
BOMHEADERTEXT TYPE STRING,
MAXNUMBEROFCOUNTERS TYPE STRING,
MAXNUMBEROFNODES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFMPPMATLBOMDET_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_RFMPPMATLBOMDET_STR-MANDT sy-vline 
WA_RFMPPMATLBOMDET_STR-PLANT sy-vline 
WA_RFMPPMATLBOMDET_STR-MATERIAL sy-vline 
WA_RFMPPMATLBOMDET_STR-CROSSPLANTCONFIGURABLEPRODUCT sy-vline 
WA_RFMPPMATLBOMDET_STR-ARTICLECATEGORY sy-vline 
WA_RFMPPMATLBOMDET_STR-BILLOFMATERIALVARIANTUSAGE sy-vline 
WA_RFMPPMATLBOMDET_STR-BILLOFMATERIAL sy-vline 
WA_RFMPPMATLBOMDET_STR-BILLOFMATERIALVARIANT sy-vline 
WA_RFMPPMATLBOMDET_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_RFMPPMATLBOMDET_STR-MATFROMLOTSIZEQUANTITY sy-vline 
WA_RFMPPMATLBOMDET_STR-MATERIALTOLOTSIZEQUANTITY sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMHEADERINTERNALCHANGECOUNT sy-vline 
WA_RFMPPMATLBOMDET_STR-HEADERENGINEERINGCHGNMBRDOC sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMHEADERQUANTITYINBASEUNIT sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMHEADERBASEUNIT sy-vline 
WA_RFMPPMATLBOMDET_STR-HEADERVALIDITYSTARTDATE sy-vline 
WA_RFMPPMATLBOMDET_STR-HEADERVALIDITYENDDATE sy-vline 
WA_RFMPPMATLBOMDET_STR-ISIMPLICITLYDELETED sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMISMARKEDFORDELETION sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMHEADERPREVIOUSCOUNTER sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMALTERNATIVETEXT sy-vline 
WA_RFMPPMATLBOMDET_STR-BILLOFMATERIALSTATUS sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMGROUP sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMTECHNICALTYPE sy-vline 
WA_RFMPPMATLBOMDET_STR-BILLOFMATERIALAUTHSNGRP sy-vline 
WA_RFMPPMATLBOMDET_STR-BOMHEADERTEXT sy-vline 
WA_RFMPPMATLBOMDET_STR-MAXNUMBEROFCOUNTERS sy-vline 
WA_RFMPPMATLBOMDET_STR-MAXNUMBEROFNODES sy-vline      INTO ld_text SEPARATED BY SPACE.

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