ABAP Select data from SAP table PVERSENGBOM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVERSENGBOM
*  INTO TABLE @DATA(IT_PVERSENGBOM2).
*--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_PVERSENGBOM INDEX 1 INTO DATA(WA_PVERSENGBOM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PVERSENGBOM-PLANT, sy-vline,
  WA_PVERSENGBOM-BILLOFMATERIALVERSION, sy-vline,
  WA_PVERSENGBOM-BILLOFMATERIALVARIANTUSAGE, sy-vline,
  WA_PVERSENGBOM-BILLOFMATERIALUUID, sy-vline,
  WA_PVERSENGBOM-ISMULTIPLEBOMALT, sy-vline,
  WA_PVERSENGBOM-BILLOFMATERIALHEADERUUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PVERSENGBOM 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_PVERSENGBOM 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_PVERSENGBOM INTO WA_PVERSENGBOM.


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

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

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

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

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

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