ABAP Select data from SAP table BOM_HEADER_API01 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP BOM_HEADER_API01 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 BOM_HEADER_API01. 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 BOM_HEADER_API01 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_BOM_HEADER_API01 TYPE STANDARD TABLE OF BOM_HEADER_API01,
      WA_BOM_HEADER_API01 TYPE BOM_HEADER_API01,
      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: <BOM_HEADER_API01> TYPE BOM_HEADER_API01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BOM_HEADER_API01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BOM_HEADER_API01
  INTO TABLE IT_BOM_HEADER_API01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BOM_HEADER_API01
*  INTO TABLE @DATA(IT_BOM_HEADER_API012).
*--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_BOM_HEADER_API01 INDEX 1 INTO DATA(WA_BOM_HEADER_API012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BOM_HEADER_API01 ASSIGNING <BOM_HEADER_API01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BOM_HEADER_API01>-MATERIAL = 1.
<BOM_HEADER_API01>-PLANT = 1.
<BOM_HEADER_API01>-BOM_USAGE = 1.
<BOM_HEADER_API01>-BOM_ALT = 1.
<BOM_HEADER_API01>-LOTSIZE_FR = 1.

ENDLOOP.

LOOP AT IT_BOM_HEADER_API01 INTO WA_BOM_HEADER_API01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BOM_HEADER_API01-LOTSIZE_TO, sy-vline,
  WA_BOM_HEADER_API01-BOM_NO, sy-vline,
  WA_BOM_HEADER_API01-CREATED_ON, sy-vline,
  WA_BOM_HEADER_API01-CREATED_BY, sy-vline,
  WA_BOM_HEADER_API01-CHANGED_ON, sy-vline,
  WA_BOM_HEADER_API01-CHANGED_BY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BOM_HEADER_API01 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_BOM_HEADER_API01 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_BOM_HEADER_API01 INTO WA_BOM_HEADER_API01.


*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_BOM_HEADER_API01-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BOM_HEADER_API01-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BOM_ALT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BOM_HEADER_API01-BOM_ALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BOM_HEADER_API01-BOM_ALT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field BOM_NO
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BOM_HEADER_API01-BOM_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BOM_HEADER_API01-BOM_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field REVISION_LEVEL
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BOM_HEADER_API01-REVISION_LEVEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BOM_HEADER_API01-REVISION_LEVEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASE_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BOM_HEADER_API01-BASE_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BOM_HEADER_API01-BASE_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHG_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BOM_HEADER_API01-CHG_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BOM_HEADER_API01-CHG_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHG_NO_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BOM_HEADER_API01-CHG_NO_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BOM_HEADER_API01-CHG_NO_TO.
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_BOM_HEADER_API01_STR, 
MATERIAL TYPE STRING,
PLANT TYPE STRING,
BOM_USAGE TYPE STRING,
BOM_ALT TYPE STRING,
LOTSIZE_FR TYPE STRING,
LOTSIZE_TO TYPE STRING,
BOM_NO TYPE STRING,
CREATED_ON TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
REVISION_LEVEL TYPE STRING,
BASE_QUAN TYPE STRING,
BASE_UNIT TYPE STRING,
BOM_STATUS TYPE STRING,
ALT_TEXT TYPE STRING,
LABORATORY TYPE STRING,
DELETE_IND TYPE STRING,
BOM_TEXT TYPE STRING,
BOM_GROUP TYPE STRING,
AUTH_GROUP TYPE STRING,
CAD_IND TYPE STRING,
ID_GUID TYPE STRING,
ALE_IND TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
CHG_NO TYPE STRING,
CHG_NO_TO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BOM_HEADER_API01_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_BOM_HEADER_API01_STR-MATERIAL sy-vline 
WA_BOM_HEADER_API01_STR-PLANT sy-vline 
WA_BOM_HEADER_API01_STR-BOM_USAGE sy-vline 
WA_BOM_HEADER_API01_STR-BOM_ALT sy-vline 
WA_BOM_HEADER_API01_STR-LOTSIZE_FR sy-vline 
WA_BOM_HEADER_API01_STR-LOTSIZE_TO sy-vline 
WA_BOM_HEADER_API01_STR-BOM_NO sy-vline 
WA_BOM_HEADER_API01_STR-CREATED_ON sy-vline 
WA_BOM_HEADER_API01_STR-CREATED_BY sy-vline 
WA_BOM_HEADER_API01_STR-CHANGED_ON sy-vline 
WA_BOM_HEADER_API01_STR-CHANGED_BY sy-vline 
WA_BOM_HEADER_API01_STR-REVISION_LEVEL sy-vline 
WA_BOM_HEADER_API01_STR-BASE_QUAN sy-vline 
WA_BOM_HEADER_API01_STR-BASE_UNIT sy-vline 
WA_BOM_HEADER_API01_STR-BOM_STATUS sy-vline 
WA_BOM_HEADER_API01_STR-ALT_TEXT sy-vline 
WA_BOM_HEADER_API01_STR-LABORATORY sy-vline 
WA_BOM_HEADER_API01_STR-DELETE_IND sy-vline 
WA_BOM_HEADER_API01_STR-BOM_TEXT sy-vline 
WA_BOM_HEADER_API01_STR-BOM_GROUP sy-vline 
WA_BOM_HEADER_API01_STR-AUTH_GROUP sy-vline 
WA_BOM_HEADER_API01_STR-CAD_IND sy-vline 
WA_BOM_HEADER_API01_STR-ID_GUID sy-vline 
WA_BOM_HEADER_API01_STR-ALE_IND sy-vline 
WA_BOM_HEADER_API01_STR-VALID_FROM sy-vline 
WA_BOM_HEADER_API01_STR-VALID_TO sy-vline 
WA_BOM_HEADER_API01_STR-CHG_NO sy-vline 
WA_BOM_HEADER_API01_STR-CHG_NO_TO sy-vline      INTO ld_text SEPARATED BY SPACE.

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