ABAP Select data from SAP table VCH_HL_S_API_BOM_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCH_HL_S_API_BOM_HEADER
*  INTO TABLE @DATA(IT_VCH_HL_S_API_BOM_HEADER2).
*--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_VCH_HL_S_API_BOM_HEADER INDEX 1 INTO DATA(WA_VCH_HL_S_API_BOM_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCH_HL_S_API_BOM_HEADER>-INSTANCE_ID = 1.
<VCH_HL_S_API_BOM_HEADER>-MATNR = 1.
<VCH_HL_S_API_BOM_HEADER>-MAKTX = 1.
<VCH_HL_S_API_BOM_HEADER>-ZEINR = 1.
<VCH_HL_S_API_BOM_HEADER>-ZEIVR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCH_HL_S_API_BOM_HEADER-ZEIAR, sy-vline,
  WA_VCH_HL_S_API_BOM_HEADER-ZEIFO, sy-vline,
  WA_VCH_HL_S_API_BOM_HEADER-BLATT, sy-vline,
  WA_VCH_HL_S_API_BOM_HEADER-BLANZ, sy-vline,
  WA_VCH_HL_S_API_BOM_HEADER-VERID, sy-vline,
  WA_VCH_HL_S_API_BOM_HEADER-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCH_HL_S_API_BOM_HEADER 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_VCH_HL_S_API_BOM_HEADER 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_VCH_HL_S_API_BOM_HEADER INTO WA_VCH_HL_S_API_BOM_HEADER.


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

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

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

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

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

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

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

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

*Conversion exit ISOLA, internal->external for field LTXSP
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_VCH_HL_S_API_BOM_HEADER-LTXSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCH_HL_S_API_BOM_HEADER-LTXSP.
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_VCH_HL_S_API_BOM_HEADER_STR, 
INSTANCE_ID TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
ZEINR TYPE STRING,
ZEIVR TYPE STRING,
ZEIAR TYPE STRING,
ZEIFO TYPE STRING,
BLATT TYPE STRING,
BLANZ TYPE STRING,
VERID TYPE STRING,
WERKS TYPE STRING,
PRWRK TYPE STRING,
AUSSS TYPE STRING,
KAUSF TYPE STRING,
SBDKZ TYPE STRING,
ALTSL TYPE STRING,
REVLV TYPE STRING,
KZEFF TYPE STRING,
KZKFG TYPE STRING,
MCUOB TYPE STRING,
CUOBJ TYPE STRING,
PRCTR TYPE STRING,
KZWSM TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
STLAN TYPE STRING,
STLAL TYPE STRING,
EXSTL TYPE STRING,
STLBE TYPE STRING,
LOSVN TYPE STRING,
LOSBS TYPE STRING,
BMENG TYPE STRING,
EMMBM TYPE STRING,
BMEIN TYPE STRING,
EMENG TYPE STRING,
EMGME TYPE STRING,
ALTST TYPE STRING,
VARST TYPE STRING,
KBAUS TYPE STRING,
DATUV TYPE STRING,
DATUB TYPE STRING,
AENNR TYPE STRING,
LOEKZ TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
CADKZ TYPE STRING,
LABOR TYPE STRING,
LTXSP TYPE STRING,
STKTX TYPE STRING,
STLST TYPE STRING,
BOM_VERSN TYPE STRING,
VERSNST TYPE STRING,
VERSNIND TYPE STRING,
VERSNLASTIND TYPE STRING,
DRAFTUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCH_HL_S_API_BOM_HEADER_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_VCH_HL_S_API_BOM_HEADER_STR-INSTANCE_ID sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-MATNR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-MAKTX sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ZEINR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ZEIVR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ZEIAR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ZEIFO sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-BLATT sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-BLANZ sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-VERID sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-WERKS sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-PRWRK sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-AUSSS sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-KAUSF sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-SBDKZ sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ALTSL sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-REVLV sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-KZEFF sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-KZKFG sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-MCUOB sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-CUOBJ sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-PRCTR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-KZWSM sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-STLTY sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-STLNR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-STLAN sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-STLAL sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-EXSTL sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-STLBE sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-LOSVN sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-LOSBS sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-BMENG sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-EMMBM sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-BMEIN sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-EMENG sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-EMGME sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ALTST sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-VARST sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-KBAUS sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-DATUV sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-DATUB sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-AENNR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-LOEKZ sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ANDAT sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-ANNAM sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-AEDAT sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-AENAM sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-CADKZ sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-LABOR sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-LTXSP sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-STKTX sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-STLST sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-BOM_VERSN sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-VERSNST sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-VERSNIND sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-VERSNLASTIND sy-vline 
WA_VCH_HL_S_API_BOM_HEADER_STR-DRAFTUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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