ABAP Select data from SAP table IPMBOMHIERARCHY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPMBOMHIERARCHY
*  INTO TABLE @DATA(IT_IPMBOMHIERARCHY2).
*--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_IPMBOMHIERARCHY INDEX 1 INTO DATA(WA_IPMBOMHIERARCHY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPMBOMHIERARCHY>-MANDT = 1.
<IPMBOMHIERARCHY>-BILLOFMATERIAL = 1.
<IPMBOMHIERARCHY>-BILLOFMATERIALVARIANT = 1.
<IPMBOMHIERARCHY>-BILLOFMATERIALCATEGORY = 1.
<IPMBOMHIERARCHY>-BILLOFMATERIALITEMNODENUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPMBOMHIERARCHY-HIERARCHYNODEUNIQUEID, sy-vline,
  WA_IPMBOMHIERARCHY-PLANT, sy-vline,
  WA_IPMBOMHIERARCHY-AVAILABILITYCHECKTYPE, sy-vline,
  WA_IPMBOMHIERARCHY-BOMITEMDESCRIPTION, sy-vline,
  WA_IPMBOMHIERARCHY-BOMITEMTEXT2, sy-vline,
  WA_IPMBOMHIERARCHY-ISSUINGPLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPMBOMHIERARCHY 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_IPMBOMHIERARCHY 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_IPMBOMHIERARCHY INTO WA_IPMBOMHIERARCHY.


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

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

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

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

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

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

*Conversion exit TPLNR, internal->external for field FUNCTIONALLOCATION
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_IPMBOMHIERARCHY-FUNCTIONALLOCATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPMBOMHIERARCHY-FUNCTIONALLOCATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IPMBOMHIERARCHY-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPMBOMHIERARCHY-MATERIAL.
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_IPMBOMHIERARCHY_STR, 
MANDT TYPE STRING,
BILLOFMATERIAL TYPE STRING,
BILLOFMATERIALVARIANT TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIALITEMNODENUMBER TYPE STRING,
HIERARCHYNODEUNIQUEID TYPE STRING,
PLANT TYPE STRING,
AVAILABILITYCHECKTYPE TYPE STRING,
BOMITEMDESCRIPTION TYPE STRING,
BOMITEMTEXT2 TYPE STRING,
ISSUINGPLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
BILLOFMATERIALCOMPONENT TYPE STRING,
BILLOFMATERIALITEMCATEGORY TYPE STRING,
BILLOFMATERIALITEMQUANTITY TYPE STRING,
BILLOFMATERIALITEMUNIT TYPE STRING,
MATLWRHSSTKQTYINMATLBASEUNIT TYPE STRING,
MATLWRHSSTKQTYONPLANTLVL TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,
CONSTRUCTIONMATERIAL TYPE STRING,
DRILLDOWNSTATE TYPE STRING,
EQUIPMENT TYPE STRING,
FUNCTIONALLOCATION TYPE STRING,
FUNCTIONALLOCATIONLABELNAME TYPE STRING,
HIERARCHYNODELEVEL TYPE STRING,
MATERIAL TYPE STRING,
PARENTNODEUNIQUEID TYPE STRING,
TECHOBJISEQUIPORFUNCNLLOC TYPE STRING,
TECHNICALOBJECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPMBOMHIERARCHY_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_IPMBOMHIERARCHY_STR-MANDT sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIAL sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALVARIANT sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALITEMNODENUMBER sy-vline 
WA_IPMBOMHIERARCHY_STR-HIERARCHYNODEUNIQUEID sy-vline 
WA_IPMBOMHIERARCHY_STR-PLANT sy-vline 
WA_IPMBOMHIERARCHY_STR-AVAILABILITYCHECKTYPE sy-vline 
WA_IPMBOMHIERARCHY_STR-BOMITEMDESCRIPTION sy-vline 
WA_IPMBOMHIERARCHY_STR-BOMITEMTEXT2 sy-vline 
WA_IPMBOMHIERARCHY_STR-ISSUINGPLANT sy-vline 
WA_IPMBOMHIERARCHY_STR-STORAGELOCATION sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALCOMPONENT sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALITEMCATEGORY sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALITEMQUANTITY sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALITEMUNIT sy-vline 
WA_IPMBOMHIERARCHY_STR-MATLWRHSSTKQTYINMATLBASEUNIT sy-vline 
WA_IPMBOMHIERARCHY_STR-MATLWRHSSTKQTYONPLANTLVL sy-vline 
WA_IPMBOMHIERARCHY_STR-BILLOFMATERIALVARIANTUSAGE sy-vline 
WA_IPMBOMHIERARCHY_STR-CONSTRUCTIONMATERIAL sy-vline 
WA_IPMBOMHIERARCHY_STR-DRILLDOWNSTATE sy-vline 
WA_IPMBOMHIERARCHY_STR-EQUIPMENT sy-vline 
WA_IPMBOMHIERARCHY_STR-FUNCTIONALLOCATION sy-vline 
WA_IPMBOMHIERARCHY_STR-FUNCTIONALLOCATIONLABELNAME sy-vline 
WA_IPMBOMHIERARCHY_STR-HIERARCHYNODELEVEL sy-vline 
WA_IPMBOMHIERARCHY_STR-MATERIAL sy-vline 
WA_IPMBOMHIERARCHY_STR-PARENTNODEUNIQUEID sy-vline 
WA_IPMBOMHIERARCHY_STR-TECHOBJISEQUIPORFUNCNLLOC sy-vline 
WA_IPMBOMHIERARCHY_STR-TECHNICALOBJECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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