ABAP Select data from SAP table CPPAGMTPSTHRVST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPPAGMTPSTHRVST
*  INTO TABLE @DATA(IT_CPPAGMTPSTHRVST2).
*--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_CPPAGMTPSTHRVST INDEX 1 INTO DATA(WA_CPPAGMTPSTHRVST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPPAGMTPSTHRVST>-MANDT = 1.
<CPPAGMTPSTHRVST>-PREPAYMENTAGRMTHARVESTUUID = 1.
<CPPAGMTPSTHRVST>-PREPAYMENTAGREEMENTUUID = 1.
<CPPAGMTPSTHRVST>-PREPAYMENTAGRMTHARVESTYEAR = 1.
<CPPAGMTPSTHRVST>-PREPAYMENTAGREEMENTCROP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPPAGMTPSTHRVST-PREPAYMENTHARVESTTOTALAREAQTY, sy-vline,
  WA_CPPAGMTPSTHRVST-PREPAYMENTHISTPLANTEDAREAUOM, sy-vline,
  WA_CPPAGMTPSTHRVST-PREPAYMENTHARVESTPRODUCTIVITY, sy-vline,
  WA_CPPAGMTPSTHRVST-PREPAYMENTHARVESTLASTPRODUCT, sy-vline,
  WA_CPPAGMTPSTHRVST-PREPAYMENTHARVESTSALESQTY, sy-vline,
  WA_CPPAGMTPSTHRVST-PREPAYMENTHARVESTSALESUOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPPAGMTPSTHRVST 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_CPPAGMTPSTHRVST 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_CPPAGMTPSTHRVST INTO WA_CPPAGMTPSTHRVST.


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

*Conversion exit CUNIT, internal->external for field PREPAYMENTHARVESTSALESUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPPAGMTPSTHRVST-PREPAYMENTHARVESTSALESUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPPAGMTPSTHRVST-PREPAYMENTHARVESTSALESUOM.
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_CPPAGMTPSTHRVST_STR, 
MANDT TYPE STRING,
PREPAYMENTAGRMTHARVESTUUID TYPE STRING,
PREPAYMENTAGREEMENTUUID TYPE STRING,
PREPAYMENTAGRMTHARVESTYEAR TYPE STRING,
PREPAYMENTAGREEMENTCROP TYPE STRING,
PREPAYMENTHARVESTTOTALAREAQTY TYPE STRING,
PREPAYMENTHISTPLANTEDAREAUOM TYPE STRING,
PREPAYMENTHARVESTPRODUCTIVITY TYPE STRING,
PREPAYMENTHARVESTLASTPRODUCT TYPE STRING,
PREPAYMENTHARVESTSALESQTY TYPE STRING,
PREPAYMENTHARVESTSALESUOM TYPE STRING,
PREPAYMENTHARVESTOBSERVATIONS TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPPAGMTPSTHRVST_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_CPPAGMTPSTHRVST_STR-MANDT sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTAGRMTHARVESTUUID sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTAGREEMENTUUID sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTAGRMTHARVESTYEAR sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTAGREEMENTCROP sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTHARVESTTOTALAREAQTY sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTHISTPLANTEDAREAUOM sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTHARVESTPRODUCTIVITY sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTHARVESTLASTPRODUCT sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTHARVESTSALESQTY sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTHARVESTSALESUOM sy-vline 
WA_CPPAGMTPSTHRVST_STR-PREPAYMENTHARVESTOBSERVATIONS sy-vline 
WA_CPPAGMTPSTHRVST_STR-CREATEDBYUSER sy-vline 
WA_CPPAGMTPSTHRVST_STR-CREATIONDATETIME sy-vline 
WA_CPPAGMTPSTHRVST_STR-LASTCHANGEDBYUSER sy-vline 
WA_CPPAGMTPSTHRVST_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.