ABAP Select data from SAP table ICAREVDOCPYMTVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICAREVDOCPYMTVH
*  INTO TABLE @DATA(IT_ICAREVDOCPYMTVH2).
*--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_ICAREVDOCPYMTVH INDEX 1 INTO DATA(WA_ICAREVDOCPYMTVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICAREVDOCPYMTVH>-MANDT = 1.
<ICAREVDOCPYMTVH>-CAREVERSALDOCUMENTNUMBER = 1.
<ICAREVDOCPYMTVH>-CADOCUMENTTYPE = 1.
<ICAREVDOCPYMTVH>-CADOCUMENTTYPENAME = 1.
<ICAREVDOCPYMTVH>-CARECONCILIATIONKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICAREVDOCPYMTVH-CAPOSTINGDATE, sy-vline,
  WA_ICAREVDOCPYMTVH-CADOCUMENTORIGINCODE, sy-vline,
  WA_ICAREVDOCPYMTVH-CADOCUMENTORIGINCODENAME, sy-vline,
  WA_ICAREVDOCPYMTVH-CREATEDBYUSER, sy-vline,
  WA_ICAREVDOCPYMTVH-CREATIONDATE, sy-vline,
  WA_ICAREVDOCPYMTVH-CAREFERENCEDOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICAREVDOCPYMTVH 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_ICAREVDOCPYMTVH 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_ICAREVDOCPYMTVH INTO WA_ICAREVDOCPYMTVH.


*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 CAREVERSALDOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICAREVDOCPYMTVH-CAREVERSALDOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAREVDOCPYMTVH-CAREVERSALDOCUMENTNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CAREFERENCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICAREVDOCPYMTVH-CAREFERENCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAREVDOCPYMTVH-CAREFERENCEDOCUMENT.
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_ICAREVDOCPYMTVH_STR, 
MANDT TYPE STRING,
CAREVERSALDOCUMENTNUMBER TYPE STRING,
CADOCUMENTTYPE TYPE STRING,
CADOCUMENTTYPENAME TYPE STRING,
CARECONCILIATIONKEY TYPE STRING,
CAPOSTINGDATE TYPE STRING,
CADOCUMENTORIGINCODE TYPE STRING,
CADOCUMENTORIGINCODENAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CAREFERENCEDOCUMENT TYPE STRING,
CAAPPLICATIONAREA TYPE STRING,
CATAXCOMPANYCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICAREVDOCPYMTVH_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_ICAREVDOCPYMTVH_STR-MANDT sy-vline 
WA_ICAREVDOCPYMTVH_STR-CAREVERSALDOCUMENTNUMBER sy-vline 
WA_ICAREVDOCPYMTVH_STR-CADOCUMENTTYPE sy-vline 
WA_ICAREVDOCPYMTVH_STR-CADOCUMENTTYPENAME sy-vline 
WA_ICAREVDOCPYMTVH_STR-CARECONCILIATIONKEY sy-vline 
WA_ICAREVDOCPYMTVH_STR-CAPOSTINGDATE sy-vline 
WA_ICAREVDOCPYMTVH_STR-CADOCUMENTORIGINCODE sy-vline 
WA_ICAREVDOCPYMTVH_STR-CADOCUMENTORIGINCODENAME sy-vline 
WA_ICAREVDOCPYMTVH_STR-CREATEDBYUSER sy-vline 
WA_ICAREVDOCPYMTVH_STR-CREATIONDATE sy-vline 
WA_ICAREVDOCPYMTVH_STR-CAREFERENCEDOCUMENT sy-vline 
WA_ICAREVDOCPYMTVH_STR-CAAPPLICATIONAREA sy-vline 
WA_ICAREVDOCPYMTVH_STR-CATAXCOMPANYCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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