ABAP Select data from SAP table ISPREPAYMENTHISTORYPRODTP_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISPREPAYMENTHISTORYPRODTP_D
*  INTO TABLE @DATA(IT_ISPREPAYMENTHISTORYPRODTP_D2).
*--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_ISPREPAYMENTHISTORYPRODTP_D INDEX 1 INTO DATA(WA_ISPREPAYMENTHISTORYPRODTP_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISPREPAYMENTHISTORYPRODTP_D>-PREPAYMENTAGRMTHARVESTYEAR = 1.
<ISPREPAYMENTHISTORYPRODTP_D>-PREPAYMENTAGREEMENTCOMMODITY = 1.
<ISPREPAYMENTHISTORYPRODTP_D>-PREPAYMENTHISTPLANTEDAREAQTY = 1.
<ISPREPAYMENTHISTORYPRODTP_D>-PREPAYMENTHISTPLANTEDAREAUOM = 1.
<ISPREPAYMENTHISTORYPRODTP_D>-PREPAYMENTHISTAVGPRODQTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISPREPAYMENTHISTORYPRODTP_D-PREPAYMENTHISTAVGPRODUOM, sy-vline,
  WA_ISPREPAYMENTHISTORYPRODTP_D-PREPAYMENTHISTTOTPRODUCTIONQTY, sy-vline,
  WA_ISPREPAYMENTHISTORYPRODTP_D-PREPAYMENTHISTTOTPRODUCTIONUOM, sy-vline,
  WA_ISPREPAYMENTHISTORYPRODTP_D-PREPAYMENTHISTORYCOMMENTTEXT, sy-vline,
  WA_ISPREPAYMENTHISTORYPRODTP_D-CREATEDBYUSER, sy-vline,
  WA_ISPREPAYMENTHISTORYPRODTP_D-CREATIONDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISPREPAYMENTHISTORYPRODTP_D 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_ISPREPAYMENTHISTORYPRODTP_D 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_ISPREPAYMENTHISTORYPRODTP_D INTO WA_ISPREPAYMENTHISTORYPRODTP_D.


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

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

*Conversion exit CUNIT, internal->external for field PREPAYMENTHISTTOTPRODUCTIONUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISPREPAYMENTHISTORYPRODTP_D-PREPAYMENTHISTTOTPRODUCTIONUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPREPAYMENTHISTORYPRODTP_D-PREPAYMENTHISTTOTPRODUCTIONUOM.
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_ISPREPAYMENTHISTORYPRODTP_D_STR, 
PREPAYMENTAGRMTHARVESTYEAR TYPE STRING,
PREPAYMENTAGREEMENTCOMMODITY TYPE STRING,
PREPAYMENTHISTPLANTEDAREAQTY TYPE STRING,
PREPAYMENTHISTPLANTEDAREAUOM TYPE STRING,
PREPAYMENTHISTAVGPRODQTY TYPE STRING,
PREPAYMENTHISTAVGPRODUOM TYPE STRING,
PREPAYMENTHISTTOTPRODUCTIONQTY TYPE STRING,
PREPAYMENTHISTTOTPRODUCTIONUOM TYPE STRING,
PREPAYMENTHISTORYCOMMENTTEXT TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
PPMGAG_DUMMY TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISPREPAYMENTHISTORYPRODTP_D_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_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTAGRMTHARVESTYEAR sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTAGREEMENTCOMMODITY sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTHISTPLANTEDAREAQTY sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTHISTPLANTEDAREAUOM sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTHISTAVGPRODQTY sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTHISTAVGPRODUOM sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTHISTTOTPRODUCTIONQTY sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTHISTTOTPRODUCTIONUOM sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PREPAYMENTHISTORYCOMMENTTEXT sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-CREATEDBYUSER sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-CREATIONDATETIME sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-LASTCHANGEDBYUSER sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-LASTCHANGEDATETIME sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-ACTIVEUUID sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-HASACTIVEENTITY sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-PPMGAG_DUMMY sy-vline 
WA_ISPREPAYMENTHISTORYPRODTP_D_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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