ABAP Select data from SAP table /ACCGO/S_PPASSIGNEDDOCUMENT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/S_PPASSIGNEDDOCUMENT 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 /ACCGO/S_PPASSIGNEDDOCUMENT. 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 /ACCGO/S_PPASSIGNEDDOCUMENT 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_/ACCGO/S_PPASSIGNEDDOCUMENT TYPE STANDARD TABLE OF /ACCGO/S_PPASSIGNEDDOCUMENT,
      WA_/ACCGO/S_PPASSIGNEDDOCUMENT TYPE /ACCGO/S_PPASSIGNEDDOCUMENT,
      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: </ACCGO/S_PPASSIGNEDDOCUMENT> TYPE /ACCGO/S_PPASSIGNEDDOCUMENT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/S_PPASSIGNEDDOCUMENT
  INTO TABLE IT_/ACCGO/S_PPASSIGNEDDOCUMENT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/S_PPASSIGNEDDOCUMENT
*  INTO TABLE @DATA(IT_/ACCGO/S_PPASSIGNEDDOCUMENT2).
*--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_/ACCGO/S_PPASSIGNEDDOCUMENT INDEX 1 INTO DATA(WA_/ACCGO/S_PPASSIGNEDDOCUMENT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/S_PPASSIGNEDDOCUMENT ASSIGNING </ACCGO/S_PPASSIGNEDDOCUMENT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/S_PPASSIGNEDDOCUMENT>-KEY = 1.
</ACCGO/S_PPASSIGNEDDOCUMENT>-PARENT_KEY = 1.
</ACCGO/S_PPASSIGNEDDOCUMENT>-ROOT_KEY = 1.
</ACCGO/S_PPASSIGNEDDOCUMENT>-PREPAYMENTCONSUMPTIONDOCUUID = 1.
</ACCGO/S_PPASSIGNEDDOCUMENT>-SAPBUSINESSOBJECTTYPECODE = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/S_PPASSIGNEDDOCUMENT INTO WA_/ACCGO/S_PPASSIGNEDDOCUMENT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/S_PPASSIGNEDDOCUMENT-DOCNUMBER, sy-vline,
  WA_/ACCGO/S_PPASSIGNEDDOCUMENT-DOCUMENTITEMNUMBER, sy-vline,
  WA_/ACCGO/S_PPASSIGNEDDOCUMENT-PREPAYMENTAGRMTLINKTYPE, sy-vline,
  WA_/ACCGO/S_PPASSIGNEDDOCUMENT-PREPAYMENTSTOPINTRSTDATETYPE, sy-vline,
  WA_/ACCGO/S_PPASSIGNEDDOCUMENT-PREPAYMENTAGREEMENTISACTIVE, sy-vline,
  WA_/ACCGO/S_PPASSIGNEDDOCUMENT-PREPAYMENTAGRMTREFLINK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/S_PPASSIGNEDDOCUMENT 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_/ACCGO/S_PPASSIGNEDDOCUMENT 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_/ACCGO/S_PPASSIGNEDDOCUMENT INTO WA_/ACCGO/S_PPASSIGNEDDOCUMENT.


*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 ALPHA, internal->external for field DOCNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/S_PPASSIGNEDDOCUMENT-DOCNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/S_PPASSIGNEDDOCUMENT-DOCNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PREPAYMENTAGRMTREFDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/S_PPASSIGNEDDOCUMENT-PREPAYMENTAGRMTREFDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/S_PPASSIGNEDDOCUMENT-PREPAYMENTAGRMTREFDOCUMENT.
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_/ACCGO/S_PPASSIGNEDDOCUMENT_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
PREPAYMENTCONSUMPTIONDOCUUID TYPE STRING,
SAPBUSINESSOBJECTTYPECODE TYPE STRING,
DOCNUMBER TYPE STRING,
DOCUMENTITEMNUMBER TYPE STRING,
PREPAYMENTAGRMTLINKTYPE TYPE STRING,
PREPAYMENTSTOPINTRSTDATETYPE TYPE STRING,
PREPAYMENTAGREEMENTISACTIVE TYPE STRING,
PREPAYMENTAGRMTREFLINK TYPE STRING,
PREPAYMENTAGRMTREFLINKUUID TYPE STRING,
PREPAYMENTAGRMTREFBUSOBJECT TYPE STRING,
PREPAYMENTAGRMTREFDOCUMENTTYPE TYPE STRING,
PREPAYMENTAGRMTREFDOCUMENT TYPE STRING,
PREPAYMENTAGRMTREFDOCITEM TYPE STRING,
PREPAYMENTAGRMTLINKAMOUNT TYPE STRING,
PREPAYMENTAGREEMENTCURRENCY TYPE STRING,
REFERENCEAPPLICATIONDOCUMENT TYPE STRING,
REFERENCESETTLEMENTUUID TYPE STRING,
PREPAYAGRMTACCRINTERESTAMOUNT TYPE STRING,
PREPAYAGRMTACCRINTERESTCRCY TYPE STRING,
PREPAYAGRMTVALIDFROMDATETIME TYPE STRING,
PREPAYAGRMTVALIDTODATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PPMGAG_DBD_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/S_PPASSIGNEDDOCUMENT_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_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-KEY sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PARENT_KEY sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-ROOT_KEY sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTCONSUMPTIONDOCUUID sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-SAPBUSINESSOBJECTTYPECODE sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-DOCNUMBER sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-DOCUMENTITEMNUMBER sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTLINKTYPE sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTSTOPINTRSTDATETYPE sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGREEMENTISACTIVE sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTREFLINK sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTREFLINKUUID sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTREFBUSOBJECT sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTREFDOCUMENTTYPE sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTREFDOCUMENT sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTREFDOCITEM sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGRMTLINKAMOUNT sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYMENTAGREEMENTCURRENCY sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-REFERENCEAPPLICATIONDOCUMENT sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-REFERENCESETTLEMENTUUID sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYAGRMTACCRINTERESTAMOUNT sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYAGRMTACCRINTERESTCRCY sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYAGRMTVALIDFROMDATETIME sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PREPAYAGRMTVALIDTODATETIME sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-CREATEDBYUSER sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-CREATIONDATETIME sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-LASTCHANGEDBYUSER sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-LASTCHANGEDATETIME sy-vline 
WA_/ACCGO/S_PPASSIGNEDDOCUMENT_STR-PPMGAG_DBD_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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