ABAP Select data from SAP table IBOMITEMEAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBOMITEMEAM
*  INTO TABLE @DATA(IT_IBOMITEMEAM2).
*--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_IBOMITEMEAM INDEX 1 INTO DATA(WA_IBOMITEMEAM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBOMITEMEAM-VALIDITYSTARTDATE, sy-vline,
  WA_IBOMITEMEAM-BILLOFMATERIALCOMPONENT, sy-vline,
  WA_IBOMITEMEAM-BILLOFMATERIALITEMCATEGORY, sy-vline,
  WA_IBOMITEMEAM-BILLOFMATERIALITEMNUMBER, sy-vline,
  WA_IBOMITEMEAM-BILLOFMATERIALITEMUNIT, sy-vline,
  WA_IBOMITEMEAM-BILLOFMATERIALITEMQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBOMITEMEAM 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_IBOMITEMEAM 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_IBOMITEMEAM INTO WA_IBOMITEMEAM.


*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_IBOMITEMEAM-BILLOFMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBOMITEMEAM-BILLOFMATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field BILLOFMATERIALITEMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IBOMITEMEAM-BILLOFMATERIALITEMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBOMITEMEAM-BILLOFMATERIALITEMUNIT.
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_IBOMITEMEAM_STR, 
MANDT TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIAL TYPE STRING,
BILLOFMATERIALITEMNODENUMBER TYPE STRING,
BOMITEMINTERNALCHANGECOUNT TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
BILLOFMATERIALCOMPONENT TYPE STRING,
BILLOFMATERIALITEMCATEGORY TYPE STRING,
BILLOFMATERIALITEMNUMBER TYPE STRING,
BILLOFMATERIALITEMUNIT TYPE STRING,
BILLOFMATERIALITEMQUANTITY TYPE STRING,
BOMITEMDESCRIPTION TYPE STRING,
BOMITEMTEXT2 TYPE STRING,
MATERIALGROUP TYPE STRING,
ISSUINGPLANT TYPE STRING,
BOMITEMISPLANTMAINTRELEVANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBOMITEMEAM_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_IBOMITEMEAM_STR-MANDT sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIAL sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIALITEMNODENUMBER sy-vline 
WA_IBOMITEMEAM_STR-BOMITEMINTERNALCHANGECOUNT sy-vline 
WA_IBOMITEMEAM_STR-VALIDITYSTARTDATE sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIALCOMPONENT sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIALITEMCATEGORY sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIALITEMNUMBER sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIALITEMUNIT sy-vline 
WA_IBOMITEMEAM_STR-BILLOFMATERIALITEMQUANTITY sy-vline 
WA_IBOMITEMEAM_STR-BOMITEMDESCRIPTION sy-vline 
WA_IBOMITEMEAM_STR-BOMITEMTEXT2 sy-vline 
WA_IBOMITEMEAM_STR-MATERIALGROUP sy-vline 
WA_IBOMITEMEAM_STR-ISSUINGPLANT sy-vline 
WA_IBOMITEMEAM_STR-BOMITEMISPLANTMAINTRELEVANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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