ABAP Select data from SAP table OBOM_WB_S_BOM1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OBOM_WB_S_BOM1 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 OBOM_WB_S_BOM1. 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 OBOM_WB_S_BOM1 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_OBOM_WB_S_BOM1 TYPE STANDARD TABLE OF OBOM_WB_S_BOM1,
      WA_OBOM_WB_S_BOM1 TYPE OBOM_WB_S_BOM1,
      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: <OBOM_WB_S_BOM1> TYPE OBOM_WB_S_BOM1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OBOM_WB_S_BOM1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OBOM_WB_S_BOM1
  INTO TABLE IT_OBOM_WB_S_BOM1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OBOM_WB_S_BOM1
*  INTO TABLE @DATA(IT_OBOM_WB_S_BOM12).
*--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_OBOM_WB_S_BOM1 INDEX 1 INTO DATA(WA_OBOM_WB_S_BOM12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OBOM_WB_S_BOM1 ASSIGNING <OBOM_WB_S_BOM1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OBOM_WB_S_BOM1>-ITEM_CATEG = 1.
<OBOM_WB_S_BOM1>-COMPONENT = 1.
<OBOM_WB_S_BOM1>-COMP_QTY = 1.
<OBOM_WB_S_BOM1>-COMP_UNIT = 1.
<OBOM_WB_S_BOM1>-ITEM_TEXT1 = 1.

ENDLOOP.

LOOP AT IT_OBOM_WB_S_BOM1 INTO WA_OBOM_WB_S_BOM1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OBOM_WB_S_BOM1-ITEM_NO, sy-vline,
  WA_OBOM_WB_S_BOM1-DOCUMENT, sy-vline,
  WA_OBOM_WB_S_BOM1-DOC_TYPE, sy-vline,
  WA_OBOM_WB_S_BOM1-DOC_PART, sy-vline,
  WA_OBOM_WB_S_BOM1-DOC_VERS, sy-vline,
  WA_OBOM_WB_S_BOM1-VSI_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OBOM_WB_S_BOM1 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_OBOM_WB_S_BOM1 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_OBOM_WB_S_BOM1 INTO WA_OBOM_WB_S_BOM1.


*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 COMPONENT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OBOM_WB_S_BOM1-COMPONENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OBOM_WB_S_BOM1-COMPONENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field COMP_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OBOM_WB_S_BOM1-COMP_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OBOM_WB_S_BOM1-COMP_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field ITEM_NO
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_OBOM_WB_S_BOM1-ITEM_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OBOM_WB_S_BOM1-ITEM_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OBOM_WB_S_BOM1-DOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OBOM_WB_S_BOM1-DOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VSI_SZUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OBOM_WB_S_BOM1-VSI_SZUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OBOM_WB_S_BOM1-VSI_SZUNIT.
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_OBOM_WB_S_BOM1_STR, 
ITEM_CATEG TYPE STRING,
COMPONENT TYPE STRING,
COMP_QTY TYPE STRING,
COMP_UNIT TYPE STRING,
ITEM_TEXT1 TYPE STRING,
ITEM_NO TYPE STRING,
DOCUMENT TYPE STRING,
DOC_TYPE TYPE STRING,
DOC_PART TYPE STRING,
DOC_VERS TYPE STRING,
VSI_NO TYPE STRING,
VSI_SIZE1 TYPE STRING,
VSI_SIZE2 TYPE STRING,
VSI_SIZE3 TYPE STRING,
VSI_SZUNIT TYPE STRING,
VSI_FORMUL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OBOM_WB_S_BOM1_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_OBOM_WB_S_BOM1_STR-ITEM_CATEG sy-vline 
WA_OBOM_WB_S_BOM1_STR-COMPONENT sy-vline 
WA_OBOM_WB_S_BOM1_STR-COMP_QTY sy-vline 
WA_OBOM_WB_S_BOM1_STR-COMP_UNIT sy-vline 
WA_OBOM_WB_S_BOM1_STR-ITEM_TEXT1 sy-vline 
WA_OBOM_WB_S_BOM1_STR-ITEM_NO sy-vline 
WA_OBOM_WB_S_BOM1_STR-DOCUMENT sy-vline 
WA_OBOM_WB_S_BOM1_STR-DOC_TYPE sy-vline 
WA_OBOM_WB_S_BOM1_STR-DOC_PART sy-vline 
WA_OBOM_WB_S_BOM1_STR-DOC_VERS sy-vline 
WA_OBOM_WB_S_BOM1_STR-VSI_NO sy-vline 
WA_OBOM_WB_S_BOM1_STR-VSI_SIZE1 sy-vline 
WA_OBOM_WB_S_BOM1_STR-VSI_SIZE2 sy-vline 
WA_OBOM_WB_S_BOM1_STR-VSI_SIZE3 sy-vline 
WA_OBOM_WB_S_BOM1_STR-VSI_SZUNIT sy-vline 
WA_OBOM_WB_S_BOM1_STR-VSI_FORMUL sy-vline      INTO ld_text SEPARATED BY SPACE.

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