ABAP Select data from SAP table RDDFEMRKDFNDDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RDDFEMRKDFNDDOC
*  INTO TABLE @DATA(IT_RDDFEMRKDFNDDOC2).
*--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_RDDFEMRKDFNDDOC INDEX 1 INTO DATA(WA_RDDFEMRKDFNDDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RDDFEMRKDFNDDOC>-MANDT = 1.
<RDDFEMRKDFNDDOC>-EARMARKEDFUNDSDOCUMENT = 1.
<RDDFEMRKDFNDDOC>-BUSINESSTRANSACTIONCATEGORY = 1.
<RDDFEMRKDFNDDOC>-EARMARKEDFUNDSDOCUMENTCATEGORY = 1.
<RDDFEMRKDFNDDOC>-EARMARKEDFUNDSDOCUMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RDDFEMRKDFNDDOC-COMPANYCODE, sy-vline,
  WA_RDDFEMRKDFNDDOC-FINANCIALMANAGEMENTAREA, sy-vline,
  WA_RDDFEMRKDFNDDOC-CONTROLLINGAREA, sy-vline,
  WA_RDDFEMRKDFNDDOC-TRANSACTIONCURRENCY, sy-vline,
  WA_RDDFEMRKDFNDDOC-EMRKDFNDSTOTALINTRANSCRCY, sy-vline,
  WA_RDDFEMRKDFNDDOC-EARMARKEDFUNDSDOCREFERENCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RDDFEMRKDFNDDOC 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_RDDFEMRKDFNDDOC 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_RDDFEMRKDFNDDOC INTO WA_RDDFEMRKDFNDDOC.


*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 EARMARKEDFUNDSDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RDDFEMRKDFNDDOC-EARMARKEDFUNDSDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDDFEMRKDFNDDOC-EARMARKEDFUNDSDOCUMENT.
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_RDDFEMRKDFNDDOC_STR, 
MANDT TYPE STRING,
EARMARKEDFUNDSDOCUMENT TYPE STRING,
BUSINESSTRANSACTIONCATEGORY TYPE STRING,
EARMARKEDFUNDSDOCUMENTCATEGORY TYPE STRING,
EARMARKEDFUNDSDOCUMENTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
CONTROLLINGAREA TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
EMRKDFNDSTOTALINTRANSCRCY TYPE STRING,
EARMARKEDFUNDSDOCREFERENCE TYPE STRING,
EARMARKEDFUNDSDOCREFERENCE2 TYPE STRING,
EARMARKEDFUNDSDOCREFERENCE3 TYPE STRING,
EARMARKEDFUNDSHEADERTEXT TYPE STRING,
EARMARKEDFUNDSHASLONGTEXT TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
ABSOLUTEEXCHANGERATE TYPE STRING,
EMRKDFNDSDOCCREATEDBYUSER TYPE STRING,
EMRKDFNDSDOCCREATIONDATE TYPE STRING,
EMRKDFNDSDOCLASTCHANGEDBYUSER TYPE STRING,
EMRKDFNDSDOCLASTCHANGEDATE TYPE STRING,
ORGNLBUSINESSTRANSACTIONTYPE TYPE STRING,
EMRKDFNDSISMARKEDFORARCHIVING TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RDDFEMRKDFNDDOC_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_RDDFEMRKDFNDDOC_STR-MANDT sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSDOCUMENT sy-vline 
WA_RDDFEMRKDFNDDOC_STR-BUSINESSTRANSACTIONCATEGORY sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSDOCUMENTCATEGORY sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSDOCUMENTTYPE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-COMPANYCODE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_RDDFEMRKDFNDDOC_STR-CONTROLLINGAREA sy-vline 
WA_RDDFEMRKDFNDDOC_STR-TRANSACTIONCURRENCY sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EMRKDFNDSTOTALINTRANSCRCY sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSDOCREFERENCE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSDOCREFERENCE2 sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSDOCREFERENCE3 sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSHEADERTEXT sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EARMARKEDFUNDSHASLONGTEXT sy-vline 
WA_RDDFEMRKDFNDDOC_STR-POSTINGDATE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-DOCUMENTDATE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EXCHANGERATEDATE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-ABSOLUTEEXCHANGERATE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EMRKDFNDSDOCCREATEDBYUSER sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EMRKDFNDSDOCCREATIONDATE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EMRKDFNDSDOCLASTCHANGEDBYUSER sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EMRKDFNDSDOCLASTCHANGEDATE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-ORGNLBUSINESSTRANSACTIONTYPE sy-vline 
WA_RDDFEMRKDFNDDOC_STR-EMRKDFNDSISMARKEDFORARCHIVING sy-vline 
WA_RDDFEMRKDFNDDOC_STR-ISENDOFPURPOSEBLOCKED sy-vline      INTO ld_text SEPARATED BY SPACE.

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