ABAP Select data from SAP table RFVD_IOA_DETAILS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVD_IOA_DETAILS
*  INTO TABLE @DATA(IT_RFVD_IOA_DETAILS2).
*--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_RFVD_IOA_DETAILS INDEX 1 INTO DATA(WA_RFVD_IOA_DETAILS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVD_IOA_DETAILS>-RIOA_DISPLAY = 1.
<RFVD_IOA_DETAILS>-MLOCKUSER = 1.
<RFVD_IOA_DETAILS>-MTEMPLNO_TXT = 1.
<RFVD_IOA_DETAILS>-TXTXBO_TEXT = 1.
<RFVD_IOA_DETAILS>-MCONF_STAT_LOAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVD_IOA_DETAILS-MCONF_STAT_BO, sy-vline,
  WA_RFVD_IOA_DETAILS-SCHEME_ID, sy-vline,
  WA_RFVD_IOA_DETAILS-TEXT, sy-vline,
  WA_RFVD_IOA_DETAILS-BNWHR, sy-vline,
  WA_RFVD_IOA_DETAILS-BBETRAG, sy-vline,
  WA_RFVD_IOA_DETAILS-SWHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVD_IOA_DETAILS 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_RFVD_IOA_DETAILS 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_RFVD_IOA_DETAILS INTO WA_RFVD_IOA_DETAILS.


*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 RPARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFVD_IOA_DETAILS-RPARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVD_IOA_DETAILS-RPARTNR.
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_RFVD_IOA_DETAILS_STR, 
RIOA_DISPLAY TYPE STRING,
MLOCKUSER TYPE STRING,
MTEMPLNO_TXT TYPE STRING,
TXTXBO_TEXT TYPE STRING,
MCONF_STAT_LOAN TYPE STRING,
MCONF_STAT_BO TYPE STRING,
SCHEME_ID TYPE STRING,
TEXT TYPE STRING,
BNWHR TYPE STRING,
BBETRAG TYPE STRING,
SWHR TYPE STRING,
BBAGATELL TYPE STRING,
SWHR_BAG TYPE STRING,
SWHR_BAGGRENZE TYPE STRING,
SWHR_ERGEBNIS TYPE STRING,
VZ_DBERVON TYPE STRING,
DBERBIS TYPE STRING,
DBETRAG_VON TYPE STRING,
VZ_GEBUCHT TYPE STRING,
IINCL TYPE STRING,
SULT TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
VZ_BERECHNTAG TYPE STRING,
VZ_BERECHN_AB TYPE STRING,
SGTXT TYPE STRING,
RPARTNR TYPE STRING,
TPARTNR TYPE STRING,
BVTYP_IN TYPE STRING,
TBVTYP_IN TYPE STRING,
ZLSCH_IN TYPE STRING,
XZLSCH_IN TYPE STRING,
BVTYP_OUT TYPE STRING,
TBVTYP_OUT TYPE STRING,
ZLSCH_OUT TYPE STRING,
MNDID TYPE STRING,
REMIT_INFO TYPE STRING,
PREP_RECALC TYPE STRING,
RIOA_POSTED TYPE STRING,
RIOA_CALC_HISTORY TYPE STRING,
RIOA_CALC_CF TYPE STRING,
ZAHLS TYPE STRING,
TZAHLS TYPE STRING,
MABER TYPE STRING,
TMABER TYPE STRING,
MANSP TYPE STRING,
TMANSP TYPE STRING,
SBUST TYPE STRING,
MTEMPLNO TYPE STRING,
SBAGATELL TYPE STRING,
AUT_NK TYPE STRING,
MANUAL_START TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVD_IOA_DETAILS_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_RFVD_IOA_DETAILS_STR-RIOA_DISPLAY sy-vline 
WA_RFVD_IOA_DETAILS_STR-MLOCKUSER sy-vline 
WA_RFVD_IOA_DETAILS_STR-MTEMPLNO_TXT sy-vline 
WA_RFVD_IOA_DETAILS_STR-TXTXBO_TEXT sy-vline 
WA_RFVD_IOA_DETAILS_STR-MCONF_STAT_LOAN sy-vline 
WA_RFVD_IOA_DETAILS_STR-MCONF_STAT_BO sy-vline 
WA_RFVD_IOA_DETAILS_STR-SCHEME_ID sy-vline 
WA_RFVD_IOA_DETAILS_STR-TEXT sy-vline 
WA_RFVD_IOA_DETAILS_STR-BNWHR sy-vline 
WA_RFVD_IOA_DETAILS_STR-BBETRAG sy-vline 
WA_RFVD_IOA_DETAILS_STR-SWHR sy-vline 
WA_RFVD_IOA_DETAILS_STR-BBAGATELL sy-vline 
WA_RFVD_IOA_DETAILS_STR-SWHR_BAG sy-vline 
WA_RFVD_IOA_DETAILS_STR-SWHR_BAGGRENZE sy-vline 
WA_RFVD_IOA_DETAILS_STR-SWHR_ERGEBNIS sy-vline 
WA_RFVD_IOA_DETAILS_STR-VZ_DBERVON sy-vline 
WA_RFVD_IOA_DETAILS_STR-DBERBIS sy-vline 
WA_RFVD_IOA_DETAILS_STR-DBETRAG_VON sy-vline 
WA_RFVD_IOA_DETAILS_STR-VZ_GEBUCHT sy-vline 
WA_RFVD_IOA_DETAILS_STR-IINCL sy-vline 
WA_RFVD_IOA_DETAILS_STR-SULT sy-vline 
WA_RFVD_IOA_DETAILS_STR-DFAELL sy-vline 
WA_RFVD_IOA_DETAILS_STR-DDISPO sy-vline 
WA_RFVD_IOA_DETAILS_STR-VZ_BERECHNTAG sy-vline 
WA_RFVD_IOA_DETAILS_STR-VZ_BERECHN_AB sy-vline 
WA_RFVD_IOA_DETAILS_STR-SGTXT sy-vline 
WA_RFVD_IOA_DETAILS_STR-RPARTNR sy-vline 
WA_RFVD_IOA_DETAILS_STR-TPARTNR sy-vline 
WA_RFVD_IOA_DETAILS_STR-BVTYP_IN sy-vline 
WA_RFVD_IOA_DETAILS_STR-TBVTYP_IN sy-vline 
WA_RFVD_IOA_DETAILS_STR-ZLSCH_IN sy-vline 
WA_RFVD_IOA_DETAILS_STR-XZLSCH_IN sy-vline 
WA_RFVD_IOA_DETAILS_STR-BVTYP_OUT sy-vline 
WA_RFVD_IOA_DETAILS_STR-TBVTYP_OUT sy-vline 
WA_RFVD_IOA_DETAILS_STR-ZLSCH_OUT sy-vline 
WA_RFVD_IOA_DETAILS_STR-MNDID sy-vline 
WA_RFVD_IOA_DETAILS_STR-REMIT_INFO sy-vline 
WA_RFVD_IOA_DETAILS_STR-PREP_RECALC sy-vline 
WA_RFVD_IOA_DETAILS_STR-RIOA_POSTED sy-vline 
WA_RFVD_IOA_DETAILS_STR-RIOA_CALC_HISTORY sy-vline 
WA_RFVD_IOA_DETAILS_STR-RIOA_CALC_CF sy-vline 
WA_RFVD_IOA_DETAILS_STR-ZAHLS sy-vline 
WA_RFVD_IOA_DETAILS_STR-TZAHLS sy-vline 
WA_RFVD_IOA_DETAILS_STR-MABER sy-vline 
WA_RFVD_IOA_DETAILS_STR-TMABER sy-vline 
WA_RFVD_IOA_DETAILS_STR-MANSP sy-vline 
WA_RFVD_IOA_DETAILS_STR-TMANSP sy-vline 
WA_RFVD_IOA_DETAILS_STR-SBUST sy-vline 
WA_RFVD_IOA_DETAILS_STR-MTEMPLNO sy-vline 
WA_RFVD_IOA_DETAILS_STR-SBAGATELL sy-vline 
WA_RFVD_IOA_DETAILS_STR-AUT_NK sy-vline 
WA_RFVD_IOA_DETAILS_STR-MANUAL_START sy-vline      INTO ld_text SEPARATED BY SPACE.

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