ABAP Select data from SAP table PCHGRECREFBITADM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCHGRECREFBITADM
*  INTO TABLE @DATA(IT_PCHGRECREFBITADM2).
*--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_PCHGRECREFBITADM INDEX 1 INTO DATA(WA_PCHGRECREFBITADM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCHGRECREFBITADM>-MANDT = 1.
<PCHGRECREFBITADM>-CHANGERECORDREFERENCEUUID = 1.
<PCHGRECREFBITADM>-MATERIAL = 1.
<PCHGRECREFBITADM>-PLANT = 1.
<PCHGRECREFBITADM>-BILLOFMATERIALVARIANTUSAGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCHGRECREFBITADM-BILLOFMATERIALVARIANT, sy-vline,
  WA_PCHGRECREFBITADM-BILLOFMATERIALITEMUUID, sy-vline,
  WA_PCHGRECREFBITADM-BILLOFMATERIALITEMNUMBER, sy-vline,
  WA_PCHGRECREFBITADM-BILLOFMATERIALCOMPONENT, sy-vline,
  WA_PCHGRECREFBITADM-BILLOFMATERIAL, sy-vline,
  WA_PCHGRECREFBITADM-CHANGERECORD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCHGRECREFBITADM 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_PCHGRECREFBITADM 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_PCHGRECREFBITADM INTO WA_PCHGRECREFBITADM.


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

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

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

*Conversion exit ALPHA, internal->external for field CHANGERECORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCHGRECREFBITADM-CHANGERECORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCHGRECREFBITADM-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_PCHGRECREFBITADM_STR, 
MANDT TYPE STRING,
CHANGERECORDREFERENCEUUID TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,
BILLOFMATERIALVARIANT TYPE STRING,
BILLOFMATERIALITEMUUID TYPE STRING,
BILLOFMATERIALITEMNUMBER TYPE STRING,
BILLOFMATERIALCOMPONENT TYPE STRING,
BILLOFMATERIAL TYPE STRING,
CHANGERECORD TYPE STRING,
CHANGERECORDUUID TYPE STRING,
CHANGERECORDREFERENCETYPE TYPE STRING,
CHANGERECORDREFERENCESUBTYPE TYPE STRING,
CHANGERECORDREFERENCE TYPE STRING,
PARENTCHANGERECORDREFUUID TYPE STRING,
ISMAINREFERENCE TYPE STRING,
CHGRECREFINTERNALKEY1 TYPE STRING,
CHGRECREFINTERNALKEY2 TYPE STRING,
CHGRECREFINTERNALKEY3 TYPE STRING,
CHGRECREFINTERNALKEY4 TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CHANGERECORDVIRTUALREFIND TYPE STRING,
CHANGERECORDITEMRELEVANCE TYPE STRING,
CHGRECDDATAMIGRATIONSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCHGRECREFBITADM_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_PCHGRECREFBITADM_STR-MANDT sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORDREFERENCEUUID sy-vline 
WA_PCHGRECREFBITADM_STR-MATERIAL sy-vline 
WA_PCHGRECREFBITADM_STR-PLANT sy-vline 
WA_PCHGRECREFBITADM_STR-BILLOFMATERIALVARIANTUSAGE sy-vline 
WA_PCHGRECREFBITADM_STR-BILLOFMATERIALVARIANT sy-vline 
WA_PCHGRECREFBITADM_STR-BILLOFMATERIALITEMUUID sy-vline 
WA_PCHGRECREFBITADM_STR-BILLOFMATERIALITEMNUMBER sy-vline 
WA_PCHGRECREFBITADM_STR-BILLOFMATERIALCOMPONENT sy-vline 
WA_PCHGRECREFBITADM_STR-BILLOFMATERIAL sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORD sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORDUUID sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORDREFERENCETYPE sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORDREFERENCESUBTYPE sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORDREFERENCE sy-vline 
WA_PCHGRECREFBITADM_STR-PARENTCHANGERECORDREFUUID sy-vline 
WA_PCHGRECREFBITADM_STR-ISMAINREFERENCE sy-vline 
WA_PCHGRECREFBITADM_STR-CHGRECREFINTERNALKEY1 sy-vline 
WA_PCHGRECREFBITADM_STR-CHGRECREFINTERNALKEY2 sy-vline 
WA_PCHGRECREFBITADM_STR-CHGRECREFINTERNALKEY3 sy-vline 
WA_PCHGRECREFBITADM_STR-CHGRECREFINTERNALKEY4 sy-vline 
WA_PCHGRECREFBITADM_STR-CREATEDBYUSER sy-vline 
WA_PCHGRECREFBITADM_STR-CREATIONDATETIME sy-vline 
WA_PCHGRECREFBITADM_STR-LASTCHANGEDBYUSER sy-vline 
WA_PCHGRECREFBITADM_STR-LASTCHANGEDATETIME sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORDVIRTUALREFIND sy-vline 
WA_PCHGRECREFBITADM_STR-CHANGERECORDITEMRELEVANCE sy-vline 
WA_PCHGRECREFBITADM_STR-CHGRECDDATAMIGRATIONSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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