ABAP Select data from SAP table RFVD_CORR_LOAN_GENRL_DISBDETS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFVD_CORR_LOAN_GENRL_DISBDETS 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_CORR_LOAN_GENRL_DISBDETS. 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_CORR_LOAN_GENRL_DISBDETS 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_CORR_LOAN_GENRL_DISBDETS TYPE STANDARD TABLE OF RFVD_CORR_LOAN_GENRL_DISBDETS,
      WA_RFVD_CORR_LOAN_GENRL_DISBDETS TYPE RFVD_CORR_LOAN_GENRL_DISBDETS,
      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_CORR_LOAN_GENRL_DISBDETS> TYPE RFVD_CORR_LOAN_GENRL_DISBDETS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVD_CORR_LOAN_GENRL_DISBDETS
*  INTO TABLE @DATA(IT_RFVD_CORR_LOAN_GENRL_DISBDETS2).
*--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_CORR_LOAN_GENRL_DISBDETS INDEX 1 INTO DATA(WA_RFVD_CORR_LOAN_GENRL_DISBDETS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVD_CORR_LOAN_GENRL_DISBDETS>-WA_DISBDETS = 1.
<RFVD_CORR_LOAN_GENRL_DISBDETS>-MANDT = 1.
<RFVD_CORR_LOAN_GENRL_DISBDETS>-BUKRS = 1.
<RFVD_CORR_LOAN_GENRL_DISBDETS>-SARCHIV = 1.
<RFVD_CORR_LOAN_GENRL_DISBDETS>-RANL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVD_CORR_LOAN_GENRL_DISBDETS-RBO, sy-vline,
  WA_RFVD_CORR_LOAN_GENRL_DISBDETS-SBO_STATUS, sy-vline,
  WA_RFVD_CORR_LOAN_GENRL_DISBDETS-SFGKZ, sy-vline,
  WA_RFVD_CORR_LOAN_GENRL_DISBDETS-SRELSTAT, sy-vline,
  WA_RFVD_CORR_LOAN_GENRL_DISBDETS-DFAELL, sy-vline,
  WA_RFVD_CORR_LOAN_GENRL_DISBDETS-DDISPO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVD_CORR_LOAN_GENRL_DISBDETS 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_CORR_LOAN_GENRL_DISBDETS 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_CORR_LOAN_GENRL_DISBDETS INTO WA_RFVD_CORR_LOAN_GENRL_DISBDETS.


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

*Conversion exit ALPHA, internal->external for field MPARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFVD_CORR_LOAN_GENRL_DISBDETS-MPARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVD_CORR_LOAN_GENRL_DISBDETS-MPARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field REXCHANGER
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RFVD_CORR_LOAN_GENRL_DISBDETS-REXCHANGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVD_CORR_LOAN_GENRL_DISBDETS-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_RFVD_CORR_LOAN_GENRL_DISBDETS_STR, 
WA_DISBDETS TYPE STRING,
MANDT TYPE STRING,
BUKRS TYPE STRING,
SARCHIV TYPE STRING,
RANL TYPE STRING,
RBO TYPE STRING,
SBO_STATUS TYPE STRING,
SFGKZ TYPE STRING,
SRELSTAT TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
ADISBNET TYPE STRING,
ADISBNET_LC 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,
MNDID TYPE STRING,
REMIT_INFO TYPE STRING,
CONTRCURR TYPE STRING,
IFULLPART TYPE STRING,
ADISBGROSS TYPE STRING,
PDISBQUOTE TYPE STRING,
INETGROSS TYPE STRING,
ADISCWITHH TYPE STRING,
AARRWITHH TYPE STRING,
AOTHERSWITHH TYPE STRING,
ADRAWINGS TYPE STRING,
AARRNOTWITHH TYPE STRING,
DWITHHUPTO TYPE STRING,
DEXCHANGER TYPE STRING,
MTEMPLNO TYPE STRING,
DFIXEDFROM TYPE STRING,
AVALIDATCAP TYPE STRING,
ADISBOFF TYPE STRING,
AAVDISOB TYPE STRING,
AREMDISOB TYPE STRING,
PDISBRATE TYPE STRING,
MPOSTCONTROL TYPE STRING,
MMANPOPROC TYPE STRING,
IPAYMTRANS TYPE STRING,
CHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVD_CORR_LOAN_GENRL_DISBDETS_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_CORR_LOAN_GENRL_DISBDETS_STR-WA_DISBDETS sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MANDT sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-BUKRS sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-SARCHIV sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-RANL sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-RBO sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-SBO_STATUS sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-SFGKZ sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-SRELSTAT sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-DFAELL sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-DDISPO sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-ADISBNET sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-ADISBNET_LC sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MPARTNR sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MBANKDET sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MPAYMMETH sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-REXCHANGER sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-IINCL sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-IULT sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MCALID sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-FTDISB sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MNDID sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-REMIT_INFO sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-CONTRCURR sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-IFULLPART sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-ADISBGROSS sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-PDISBQUOTE sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-INETGROSS sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-ADISCWITHH sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-AARRWITHH sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-AOTHERSWITHH sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-ADRAWINGS sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-AARRNOTWITHH sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-DWITHHUPTO sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-DEXCHANGER sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MTEMPLNO sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-DFIXEDFROM sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-AVALIDATCAP sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-ADISBOFF sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-AAVDISOB sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-AREMDISOB sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-PDISBRATE sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MPOSTCONTROL sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-MMANPOPROC sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-IPAYMTRANS sy-vline 
WA_RFVD_CORR_LOAN_GENRL_DISBDETS_STR-CHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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