ABAP Select data from SAP table IPPMGPRDHS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPPMGPRDHS
*  INTO TABLE @DATA(IT_IPPMGPRDHS2).
*--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_IPPMGPRDHS INDEX 1 INTO DATA(WA_IPPMGPRDHS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPPMGPRDHS>-MANDT = 1.
<IPPMGPRDHS>-PREPAYMENTHISTORYPRODUUID = 1.
<IPPMGPRDHS>-PREPAYMENTAGREEMENTUUID = 1.
<IPPMGPRDHS>-PREPAYMENTAGRMTHARVESTYEAR = 1.
<IPPMGPRDHS>-PREPAYMENTAGREEMENTCOMMODITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPPMGPRDHS-PREPAYMENTHISTPLANTEDAREAQTY, sy-vline,
  WA_IPPMGPRDHS-PREPAYMENTHISTPLANTEDAREAUOM, sy-vline,
  WA_IPPMGPRDHS-PREPAYMENTHISTAVGPRODQTY, sy-vline,
  WA_IPPMGPRDHS-PREPAYMENTHISTAVGPRODUOM, sy-vline,
  WA_IPPMGPRDHS-PREPAYMENTHISTTOTPRODUCTIONQTY, sy-vline,
  WA_IPPMGPRDHS-PREPAYMENTHISTTOTPRODUCTIONUOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPPMGPRDHS 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_IPPMGPRDHS 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_IPPMGPRDHS INTO WA_IPPMGPRDHS.


*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_IPPMGPRDHS-PREPAYMENTHISTPLANTEDAREAUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPPMGPRDHS-PREPAYMENTHISTPLANTEDAREAUOM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field PREPAYMENTHISTTOTPRODUCTIONUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPPMGPRDHS-PREPAYMENTHISTTOTPRODUCTIONUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPPMGPRDHS-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_IPPMGPRDHS_STR, 
MANDT TYPE STRING,
PREPAYMENTHISTORYPRODUUID TYPE STRING,
PREPAYMENTAGREEMENTUUID TYPE STRING,
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,
PREPAYMENTAGREEMENT TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPPMGPRDHS_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_IPPMGPRDHS_STR-MANDT sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTORYPRODUUID sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTAGREEMENTUUID sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTAGRMTHARVESTYEAR sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTAGREEMENTCOMMODITY sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTPLANTEDAREAQTY sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTPLANTEDAREAUOM sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTAVGPRODQTY sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTAVGPRODUOM sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTTOTPRODUCTIONQTY sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTTOTPRODUCTIONUOM sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTHISTORYCOMMENTTEXT sy-vline 
WA_IPPMGPRDHS_STR-PREPAYMENTAGREEMENT sy-vline 
WA_IPPMGPRDHS_STR-CREATEDBYUSER sy-vline 
WA_IPPMGPRDHS_STR-CREATIONDATETIME sy-vline 
WA_IPPMGPRDHS_STR-LASTCHANGEDBYUSER sy-vline 
WA_IPPMGPRDHS_STR-LASTCHANGEDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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