ABAP Select data from SAP table RINPAYMENT_IF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RINPAYMENT_IF
*  INTO TABLE @DATA(IT_RINPAYMENT_IF2).
*--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_RINPAYMENT_IF INDEX 1 INTO DATA(WA_RINPAYMENT_IF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RINPAYMENT_IF>-DWITHHUPTO = 1.
<RINPAYMENT_IF>-DEXCHANGER = 1.
<RINPAYMENT_IF>-DFIXEDFROM = 1.
<RINPAYMENT_IF>-DFAELL = 1.
<RINPAYMENT_IF>-DDISPO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RINPAYMENT_IF-MPARTNR, sy-vline,
  WA_RINPAYMENT_IF-MBANKDET, sy-vline,
  WA_RINPAYMENT_IF-MPAYMMETH, sy-vline,
  WA_RINPAYMENT_IF-REXCHANGER, sy-vline,
  WA_RINPAYMENT_IF-IINCL, sy-vline,
  WA_RINPAYMENT_IF-IULT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RINPAYMENT_IF 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_RINPAYMENT_IF 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_RINPAYMENT_IF INTO WA_RINPAYMENT_IF.


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

*Conversion exit EXCRT, internal->external for field REXCHANGER
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RINPAYMENT_IF-REXCHANGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RINPAYMENT_IF-REXCHANGER.
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_RINPAYMENT_IF_STR, 
DWITHHUPTO TYPE STRING,
DEXCHANGER TYPE STRING,
DFIXEDFROM TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
MPARTNR TYPE STRING,
MBANKDET TYPE STRING,
MPAYMMETH TYPE STRING,
REXCHANGER TYPE STRING,
IINCL TYPE STRING,
IULT TYPE STRING,
MCALID TYPE STRING,
FTDISB TYPE STRING,
MPOSTCONTROL TYPE STRING,
MMANPOPROC TYPE STRING,
IPAYMTRANS TYPE STRING,
TXTXBO_TEXT TYPE STRING,
TSG_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RINPAYMENT_IF_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_RINPAYMENT_IF_STR-DWITHHUPTO sy-vline 
WA_RINPAYMENT_IF_STR-DEXCHANGER sy-vline 
WA_RINPAYMENT_IF_STR-DFIXEDFROM sy-vline 
WA_RINPAYMENT_IF_STR-DFAELL sy-vline 
WA_RINPAYMENT_IF_STR-DDISPO sy-vline 
WA_RINPAYMENT_IF_STR-MPARTNR sy-vline 
WA_RINPAYMENT_IF_STR-MBANKDET sy-vline 
WA_RINPAYMENT_IF_STR-MPAYMMETH sy-vline 
WA_RINPAYMENT_IF_STR-REXCHANGER sy-vline 
WA_RINPAYMENT_IF_STR-IINCL sy-vline 
WA_RINPAYMENT_IF_STR-IULT sy-vline 
WA_RINPAYMENT_IF_STR-MCALID sy-vline 
WA_RINPAYMENT_IF_STR-FTDISB sy-vline 
WA_RINPAYMENT_IF_STR-MPOSTCONTROL sy-vline 
WA_RINPAYMENT_IF_STR-MMANPOPROC sy-vline 
WA_RINPAYMENT_IF_STR-IPAYMTRANS sy-vline 
WA_RINPAYMENT_IF_STR-TXTXBO_TEXT sy-vline 
WA_RINPAYMENT_IF_STR-TSG_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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