ABAP Select data from SAP table IPPMGAGPDH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPPMGAGPDH
*  INTO TABLE @DATA(IT_IPPMGAGPDH2).
*--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_IPPMGAGPDH INDEX 1 INTO DATA(WA_IPPMGAGPDH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPPMGAGPDH>-MANDT = 1.
<IPPMGAGPDH>-PREPAYMENTASSIGNEDDOCUMENTUUID = 1.
<IPPMGAGPDH>-PREPAYMENTAGRMTREFLINKUUID = 1.
<IPPMGAGPDH>-PREPAYMENTAGRMTREFBUSOBJECT = 1.
<IPPMGAGPDH>-PREPAYMENTAGRMTREFDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPPMGAGPDH-PREPAYMENTAGRMTREFDOCITEM, sy-vline,
  WA_IPPMGAGPDH-PREPAYMENTAGRMTREFDOCUMENTTYPE, sy-vline,
  WA_IPPMGAGPDH-PREPAYMENTAGREEMENT, sy-vline,
  WA_IPPMGAGPDH-PREPAYMENTAGREEMENTTYPE, sy-vline,
  WA_IPPMGAGPDH-COMPANYCODE, sy-vline,
  WA_IPPMGAGPDH-PREPAYMENTAGREEMENTCOMMODITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPPMGAGPDH 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_IPPMGAGPDH 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_IPPMGAGPDH INTO WA_IPPMGAGPDH.


*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 COUNTERPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPPMGAGPDH-COUNTERPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPPMGAGPDH-COUNTERPARTY.
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_IPPMGAGPDH_STR, 
MANDT TYPE STRING,
PREPAYMENTASSIGNEDDOCUMENTUUID TYPE STRING,
PREPAYMENTAGRMTREFLINKUUID TYPE STRING,
PREPAYMENTAGRMTREFBUSOBJECT TYPE STRING,
PREPAYMENTAGRMTREFDOCUMENT TYPE STRING,
PREPAYMENTAGRMTREFDOCITEM TYPE STRING,
PREPAYMENTAGRMTREFDOCUMENTTYPE TYPE STRING,
PREPAYMENTAGREEMENT TYPE STRING,
PREPAYMENTAGREEMENTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
PREPAYMENTAGREEMENTCOMMODITY TYPE STRING,
PREPAYMENTAGREEMENTAMOUNT TYPE STRING,
SETTLMTDOC TYPE STRING,
ACMSETTLEMENTDOCUMENTTYPE TYPE STRING,
PREPAYMENTAGRMTLINKAMOUNT TYPE STRING,
PREPAYMENTAGRMTCONSUMEDAMOUNT TYPE STRING,
PREPAYMENTAGREEMENTCURRENCY TYPE STRING,
PREPAYMENTAGRMTRECOVEREDAMOUNT TYPE STRING,
PREPAYMENTAGRMTSETTLEDAMOUNT TYPE STRING,
PREPAYACCRUALPOSTEDCURRENCY TYPE STRING,
PREPAYMENTAGRMTEVENTAMOUNT TYPE STRING,
PREPAYMENTCREDITCURRENCY TYPE STRING,
PREPAYMENTUNASSIGNEDAMT TYPE STRING,
COUNTERPARTY TYPE STRING,
SETTLEMENTNETAMOUNT TYPE STRING,
SETTLEMENTCURRENCY TYPE STRING,
SETTLEMENTGROUPID TYPE STRING,
POSTINGDATEYEAR TYPE STRING,
CONSUMEDAMOUNTINSETTLMTCRCY TYPE STRING,
SETTLEMENTPOSTINGDATE TYPE STRING,
ACMSETTLEMENTGROUPFXVAL TYPE STRING,
SETTLMTNETAMTINPREPAYMENTCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPPMGAGPDH_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_IPPMGAGPDH_STR-MANDT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTASSIGNEDDOCUMENTUUID sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTREFLINKUUID sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTREFBUSOBJECT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTREFDOCUMENT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTREFDOCITEM sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTREFDOCUMENTTYPE sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGREEMENT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGREEMENTTYPE sy-vline 
WA_IPPMGAGPDH_STR-COMPANYCODE sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGREEMENTCOMMODITY sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGREEMENTAMOUNT sy-vline 
WA_IPPMGAGPDH_STR-SETTLMTDOC sy-vline 
WA_IPPMGAGPDH_STR-ACMSETTLEMENTDOCUMENTTYPE sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTLINKAMOUNT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTCONSUMEDAMOUNT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGREEMENTCURRENCY sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTRECOVEREDAMOUNT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTSETTLEDAMOUNT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYACCRUALPOSTEDCURRENCY sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTAGRMTEVENTAMOUNT sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTCREDITCURRENCY sy-vline 
WA_IPPMGAGPDH_STR-PREPAYMENTUNASSIGNEDAMT sy-vline 
WA_IPPMGAGPDH_STR-COUNTERPARTY sy-vline 
WA_IPPMGAGPDH_STR-SETTLEMENTNETAMOUNT sy-vline 
WA_IPPMGAGPDH_STR-SETTLEMENTCURRENCY sy-vline 
WA_IPPMGAGPDH_STR-SETTLEMENTGROUPID sy-vline 
WA_IPPMGAGPDH_STR-POSTINGDATEYEAR sy-vline 
WA_IPPMGAGPDH_STR-CONSUMEDAMOUNTINSETTLMTCRCY sy-vline 
WA_IPPMGAGPDH_STR-SETTLEMENTPOSTINGDATE sy-vline 
WA_IPPMGAGPDH_STR-ACMSETTLEMENTGROUPFXVAL sy-vline 
WA_IPPMGAGPDH_STR-SETTLMTNETAMTINPREPAYMENTCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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