ABAP Select data from SAP table IMNGUNASSVMBOM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMNGUNASSVMBOM
*  INTO TABLE @DATA(IT_IMNGUNASSVMBOM2).
*--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_IMNGUNASSVMBOM INDEX 1 INTO DATA(WA_IMNGUNASSVMBOM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMNGUNASSVMBOM-PLANT, sy-vline,
  WA_IMNGUNASSVMBOM-BOMALTERNATIVETEXT, sy-vline,
  WA_IMNGUNASSVMBOM-BOMGROUP, sy-vline,
  WA_IMNGUNASSVMBOM-BOMHEADERBASEUNIT, sy-vline,
  WA_IMNGUNASSVMBOM-BOMHEADERINTERNALCHANGECOUNT, sy-vline,
  WA_IMNGUNASSVMBOM-BOMHEADERQUANTITYINBASEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMNGUNASSVMBOM 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_IMNGUNASSVMBOM 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_IMNGUNASSVMBOM INTO WA_IMNGUNASSVMBOM.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CHANGERECORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMNGUNASSVMBOM-CHANGERECORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMNGUNASSVMBOM-CHANGERECORD.
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_IMNGUNASSVMBOM_STR, 
MANDT TYPE STRING,
BILLOFMATERIAL TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIALVARIANT TYPE STRING,
BILLOFMATERIALVERSION TYPE STRING,
PLANT TYPE STRING,
BOMALTERNATIVETEXT TYPE STRING,
BOMGROUP TYPE STRING,
BOMHEADERBASEUNIT TYPE STRING,
BOMHEADERINTERNALCHANGECOUNT TYPE STRING,
BOMHEADERQUANTITYINBASEUNIT TYPE STRING,
BOMHEADERTEXT TYPE STRING,
BOMISTOBEDELETED TYPE STRING,
BOMPRIORITIZEDVERSION TYPE STRING,
BOMTECHNICALTYPE TYPE STRING,
BOMUSAGEPRIORITY TYPE STRING,
BOMVERSIONSTATUS TYPE STRING,
BILLOFMATERIALAUTHSNGRP TYPE STRING,
BILLOFMATERIALHEADERUUID TYPE STRING,
BILLOFMATERIALSTATUS TYPE STRING,
BILLOFMATERIALUUID TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,
CHGTOENGINEERINGCHGDOCUMENT TYPE STRING,
CREATEDBYUSER TYPE STRING,
DOCUMENTISCREATEDBYCAD TYPE STRING,
ENGINEERINGCHANGEDOCUMENT TYPE STRING,
HEADERVALIDITYENDDATE TYPE STRING,
HEADERVALIDITYSTARTDATE TYPE STRING,
ISALE TYPE STRING,
ISCONFIGUREDMATERIAL TYPE STRING,
ISLATESTBOMVERSION TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,
ISMULTIPLEBOMALT TYPE STRING,
LABORATORYORDESIGNOFFICE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
MATFROMLOTSIZEQUANTITY TYPE STRING,
MATERIAL TYPE STRING,
MATERIALTOLOTSIZEQUANTITY TYPE STRING,
ISVERSIONBILLOFMATERIAL TYPE STRING,
CHANGERECORD TYPE STRING,
CHGRECDASSGD TYPE STRING,
CHANGERECORDUUID TYPE STRING,
RECORDCREATIONDATE TYPE STRING,
ISMATERIALUNITIZED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMNGUNASSVMBOM_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_IMNGUNASSVMBOM_STR-MANDT sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIAL sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALVARIANT sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALVERSION sy-vline 
WA_IMNGUNASSVMBOM_STR-PLANT sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMALTERNATIVETEXT sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMGROUP sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMHEADERBASEUNIT sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMHEADERINTERNALCHANGECOUNT sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMHEADERQUANTITYINBASEUNIT sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMHEADERTEXT sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMISTOBEDELETED sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMPRIORITIZEDVERSION sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMTECHNICALTYPE sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMUSAGEPRIORITY sy-vline 
WA_IMNGUNASSVMBOM_STR-BOMVERSIONSTATUS sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALAUTHSNGRP sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALHEADERUUID sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALSTATUS sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALUUID sy-vline 
WA_IMNGUNASSVMBOM_STR-BILLOFMATERIALVARIANTUSAGE sy-vline 
WA_IMNGUNASSVMBOM_STR-CHGTOENGINEERINGCHGDOCUMENT sy-vline 
WA_IMNGUNASSVMBOM_STR-CREATEDBYUSER sy-vline 
WA_IMNGUNASSVMBOM_STR-DOCUMENTISCREATEDBYCAD sy-vline 
WA_IMNGUNASSVMBOM_STR-ENGINEERINGCHANGEDOCUMENT sy-vline 
WA_IMNGUNASSVMBOM_STR-HEADERVALIDITYENDDATE sy-vline 
WA_IMNGUNASSVMBOM_STR-HEADERVALIDITYSTARTDATE sy-vline 
WA_IMNGUNASSVMBOM_STR-ISALE sy-vline 
WA_IMNGUNASSVMBOM_STR-ISCONFIGUREDMATERIAL sy-vline 
WA_IMNGUNASSVMBOM_STR-ISLATESTBOMVERSION sy-vline 
WA_IMNGUNASSVMBOM_STR-ISMARKEDFORDELETION sy-vline 
WA_IMNGUNASSVMBOM_STR-ISMULTIPLEBOMALT sy-vline 
WA_IMNGUNASSVMBOM_STR-LABORATORYORDESIGNOFFICE sy-vline 
WA_IMNGUNASSVMBOM_STR-LASTCHANGEDATE sy-vline 
WA_IMNGUNASSVMBOM_STR-LASTCHANGEDBYUSER sy-vline 
WA_IMNGUNASSVMBOM_STR-MATFROMLOTSIZEQUANTITY sy-vline 
WA_IMNGUNASSVMBOM_STR-MATERIAL sy-vline 
WA_IMNGUNASSVMBOM_STR-MATERIALTOLOTSIZEQUANTITY sy-vline 
WA_IMNGUNASSVMBOM_STR-ISVERSIONBILLOFMATERIAL sy-vline 
WA_IMNGUNASSVMBOM_STR-CHANGERECORD sy-vline 
WA_IMNGUNASSVMBOM_STR-CHGRECDASSGD sy-vline 
WA_IMNGUNASSVMBOM_STR-CHANGERECORDUUID sy-vline 
WA_IMNGUNASSVMBOM_STR-RECORDCREATIONDATE sy-vline 
WA_IMNGUNASSVMBOM_STR-ISMATERIALUNITIZED sy-vline      INTO ld_text SEPARATED BY SPACE.

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