ABAP Select data from SAP table NCHGRCDOBJPGPLS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NCHGRCDOBJPGPLS
*  INTO TABLE @DATA(IT_NCHGRCDOBJPGPLS2).
*--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_NCHGRCDOBJPGPLS INDEX 1 INTO DATA(WA_NCHGRCDOBJPGPLS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NCHGRCDOBJPGPLS>-MANDT = 1.
<NCHGRCDOBJPGPLS>-CHANGERECORDREFERENCEUUID = 1.
<NCHGRCDOBJPGPLS>-DOCUMENTID = 1.
<NCHGRCDOBJPGPLS>-CHANGERECORDTYPE = 1.
<NCHGRCDOBJPGPLS>-CHANGERECORDUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NCHGRCDOBJPGPLS-CHANGERECORDREFERENCETYPE, sy-vline,
  WA_NCHGRCDOBJPGPLS-PARENTCHANGERECORDREFUUID, sy-vline,
  WA_NCHGRCDOBJPGPLS-SOURCEMATERIAL, sy-vline,
  WA_NCHGRCDOBJPGPLS-SOURCEPLANT, sy-vline,
  WA_NCHGRCDOBJPGPLS-SOURCEBOMUSAGE, sy-vline,
  WA_NCHGRCDOBJPGPLS-SOURCEBOMUSAGETEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NCHGRCDOBJPGPLS 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_NCHGRCDOBJPGPLS 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_NCHGRCDOBJPGPLS INTO WA_NCHGRCDOBJPGPLS.


*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 SOURCEMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_NCHGRCDOBJPGPLS-SOURCEMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NCHGRCDOBJPGPLS-SOURCEMATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field TARGETMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_NCHGRCDOBJPGPLS-TARGETMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NCHGRCDOBJPGPLS-TARGETMATERIAL.
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_NCHGRCDOBJPGPLS_STR, 
MANDT TYPE STRING,
CHANGERECORDREFERENCEUUID TYPE STRING,
DOCUMENTID TYPE STRING,
CHANGERECORDTYPE TYPE STRING,
CHANGERECORDUUID TYPE STRING,
CHANGERECORDREFERENCETYPE TYPE STRING,
PARENTCHANGERECORDREFUUID TYPE STRING,
SOURCEMATERIAL TYPE STRING,
SOURCEPLANT TYPE STRING,
SOURCEBOMUSAGE TYPE STRING,
SOURCEBOMUSAGETEXT TYPE STRING,
SOURCEBOMALTERNATIVE TYPE STRING,
MBOMUSAGE TYPE STRING,
TARGETBOMUSAGETEXT TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
PRODUCTIONPLANTNAME TYPE STRING,
TARGETMATERIAL TYPE STRING,
TARGETMATERIALNAME TYPE STRING,
PLANNINGSCOPEALTERNATIVE TYPE STRING,
PLANNINGSCOPEDESCRIPTION TYPE STRING,
CHANGERECORDITEMRELEVANCE TYPE STRING,
ISVERSIONBILLOFMATERIAL TYPE STRING,
SOURCEBOMISVERSIONED TYPE STRING,
CHANGERECORDREFERENCE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
PLANTNAME TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NCHGRCDOBJPGPLS_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_NCHGRCDOBJPGPLS_STR-MANDT sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CHANGERECORDREFERENCEUUID sy-vline 
WA_NCHGRCDOBJPGPLS_STR-DOCUMENTID sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CHANGERECORDTYPE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CHANGERECORDUUID sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CHANGERECORDREFERENCETYPE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-PARENTCHANGERECORDREFUUID sy-vline 
WA_NCHGRCDOBJPGPLS_STR-SOURCEMATERIAL sy-vline 
WA_NCHGRCDOBJPGPLS_STR-SOURCEPLANT sy-vline 
WA_NCHGRCDOBJPGPLS_STR-SOURCEBOMUSAGE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-SOURCEBOMUSAGETEXT sy-vline 
WA_NCHGRCDOBJPGPLS_STR-SOURCEBOMALTERNATIVE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-MBOMUSAGE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-TARGETBOMUSAGETEXT sy-vline 
WA_NCHGRCDOBJPGPLS_STR-PRODUCTIONPLANT sy-vline 
WA_NCHGRCDOBJPGPLS_STR-PRODUCTIONPLANTNAME sy-vline 
WA_NCHGRCDOBJPGPLS_STR-TARGETMATERIAL sy-vline 
WA_NCHGRCDOBJPGPLS_STR-TARGETMATERIALNAME sy-vline 
WA_NCHGRCDOBJPGPLS_STR-PLANNINGSCOPEALTERNATIVE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-PLANNINGSCOPEDESCRIPTION sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CHANGERECORDITEMRELEVANCE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-ISVERSIONBILLOFMATERIAL sy-vline 
WA_NCHGRCDOBJPGPLS_STR-SOURCEBOMISVERSIONED sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CHANGERECORDREFERENCE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CREATEDBYUSER sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CREATIONDATETIME sy-vline 
WA_NCHGRCDOBJPGPLS_STR-PLANTNAME sy-vline 
WA_NCHGRCDOBJPGPLS_STR-CREATIONDATE sy-vline 
WA_NCHGRCDOBJPGPLS_STR-LASTCHANGEDBYUSER sy-vline 
WA_NCHGRCDOBJPGPLS_STR-LASTCHANGEDATETIME sy-vline 
WA_NCHGRCDOBJPGPLS_STR-LASTCHANGEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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