ABAP Select data from SAP table RHPMFIN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RHPMFIN
*  INTO TABLE @DATA(IT_RHPMFIN2).
*--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_RHPMFIN INDEX 1 INTO DATA(WA_RHPMFIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RHPMFIN>-OBJID = 1.
<RHPMFIN>-BUTYP = 1.
<RHPMFIN>-BUTYPT = 1.
<RHPMFIN>-SHORT = 1.
<RHPMFIN>-STEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RHPMFIN-BEGDA, sy-vline,
  WA_RHPMFIN-ENDDA, sy-vline,
  WA_RHPMFIN-AMNT, sy-vline,
  WA_RHPMFIN-RELAMNT, sy-vline,
  WA_RHPMFIN-BUGRU, sy-vline,
  WA_RHPMFIN-NEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RHPMFIN 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_RHPMFIN 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_RHPMFIN INTO WA_RHPMFIN.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RHPMFIN_STR, 
OBJID TYPE STRING,
BUTYP TYPE STRING,
BUTYPT TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
AMNT TYPE STRING,
RELAMNT TYPE STRING,
BUGRU TYPE STRING,
NEW TYPE STRING,
IN TYPE STRING,
INDIREKT TYPE STRING,
INVISIBLE TYPE STRING,
NO_CHANGE TYPE STRING,
AUSART TYPE STRING,
ACTIVE TYPE STRING,
PERNR TYPE STRING,
KINTE TYPE STRING,
CLOSED TYPE STRING,
FIN_OTYPE TYPE STRING,
FIN_OBJID TYPE STRING,
TABIX TYPE STRING,
CURCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RHPMFIN_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_RHPMFIN_STR-OBJID sy-vline 
WA_RHPMFIN_STR-BUTYP sy-vline 
WA_RHPMFIN_STR-BUTYPT sy-vline 
WA_RHPMFIN_STR-SHORT sy-vline 
WA_RHPMFIN_STR-STEXT sy-vline 
WA_RHPMFIN_STR-BEGDA sy-vline 
WA_RHPMFIN_STR-ENDDA sy-vline 
WA_RHPMFIN_STR-AMNT sy-vline 
WA_RHPMFIN_STR-RELAMNT sy-vline 
WA_RHPMFIN_STR-BUGRU sy-vline 
WA_RHPMFIN_STR-NEW sy-vline 
WA_RHPMFIN_STR-IN sy-vline 
WA_RHPMFIN_STR-INDIREKT sy-vline 
WA_RHPMFIN_STR-INVISIBLE sy-vline 
WA_RHPMFIN_STR-NO_CHANGE sy-vline 
WA_RHPMFIN_STR-AUSART sy-vline 
WA_RHPMFIN_STR-ACTIVE sy-vline 
WA_RHPMFIN_STR-PERNR sy-vline 
WA_RHPMFIN_STR-KINTE sy-vline 
WA_RHPMFIN_STR-CLOSED sy-vline 
WA_RHPMFIN_STR-FIN_OTYPE sy-vline 
WA_RHPMFIN_STR-FIN_OBJID sy-vline 
WA_RHPMFIN_STR-TABIX sy-vline 
WA_RHPMFIN_STR-CURCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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