ABAP Select data from SAP table IEFDCONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEFDCONS
*  INTO TABLE @DATA(IT_IEFDCONS2).
*--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_IEFDCONS INDEX 1 INTO DATA(WA_IEFDCONS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEFDCONS>-MANDT = 1.
<IEFDCONS>-EARMARKEDFUNDS = 1.
<IEFDCONS>-EARMARKEDFUNDSITEM = 1.
<IEFDCONS>-EARMARKEDFUNDSITEMPROCESSING = 1.
<IEFDCONS>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEFDCONS-COMPANYCODENAME, sy-vline,
  WA_IEFDCONS-BUSINESSTRANSACTIONTYPE, sy-vline,
  WA_IEFDCONS-CREATEDBYUSER, sy-vline,
  WA_IEFDCONS-CREATIONDATE, sy-vline,
  WA_IEFDCONS-LASTCHANGEUSER, sy-vline,
  WA_IEFDCONS-LASTCHANGEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEFDCONS 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_IEFDCONS 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_IEFDCONS INTO WA_IEFDCONS.


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

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

*Conversion exit ALPHA, internal->external for field REFERENCEDOCUMENTLOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEFDCONS-REFERENCEDOCUMENTLOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEFDCONS-REFERENCEDOCUMENTLOGICALSYSTEM.
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_IEFDCONS_STR, 
MANDT TYPE STRING,
EARMARKEDFUNDS TYPE STRING,
EARMARKEDFUNDSITEM TYPE STRING,
EARMARKEDFUNDSITEMPROCESSING TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
BUSINESSTRANSACTIONTYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTCONTEXT TYPE STRING,
REFERENCEDOCUMENTLOGICALSYSTEM TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
EMRKDFNDSITMPROCGISSTATISTICAL TYPE STRING,
ISREVERSED TYPE STRING,
DOCUMENTITEMTEXT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
EMRKDFNDSCNSMDAMTINTRANSCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEFDCONS_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_IEFDCONS_STR-MANDT sy-vline 
WA_IEFDCONS_STR-EARMARKEDFUNDS sy-vline 
WA_IEFDCONS_STR-EARMARKEDFUNDSITEM sy-vline 
WA_IEFDCONS_STR-EARMARKEDFUNDSITEMPROCESSING sy-vline 
WA_IEFDCONS_STR-COMPANYCODE sy-vline 
WA_IEFDCONS_STR-COMPANYCODENAME sy-vline 
WA_IEFDCONS_STR-BUSINESSTRANSACTIONTYPE sy-vline 
WA_IEFDCONS_STR-CREATEDBYUSER sy-vline 
WA_IEFDCONS_STR-CREATIONDATE sy-vline 
WA_IEFDCONS_STR-LASTCHANGEUSER sy-vline 
WA_IEFDCONS_STR-LASTCHANGEDATE sy-vline 
WA_IEFDCONS_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_IEFDCONS_STR-REFERENCEDOCUMENT sy-vline 
WA_IEFDCONS_STR-REFERENCEDOCUMENTCONTEXT sy-vline 
WA_IEFDCONS_STR-REFERENCEDOCUMENTLOGICALSYSTEM sy-vline 
WA_IEFDCONS_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_IEFDCONS_STR-EMRKDFNDSITMPROCGISSTATISTICAL sy-vline 
WA_IEFDCONS_STR-ISREVERSED sy-vline 
WA_IEFDCONS_STR-DOCUMENTITEMTEXT sy-vline 
WA_IEFDCONS_STR-TRANSACTIONCURRENCY sy-vline 
WA_IEFDCONS_STR-EMRKDFNDSCNSMDAMTINTRANSCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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