ABAP Select data from SAP table IFLDFIBD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFLDFIBD
*  INTO TABLE @DATA(IT_IFLDFIBD2).
*--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_IFLDFIBD INDEX 1 INTO DATA(WA_IFLDFIBD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFLDFIBD>-MANDT = 1.
<IFLDFIBD>-PURCHASINGDOCUMENT = 1.
<IFLDFIBD>-PURCHASINGDOCUMENTITEM = 1.
<IFLDFIBD>-DELIVERYDOCUMENT = 1.
<IFLDFIBD>-DELIVERYDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFLDFIBD-PURCHASINGDOCUMENTCATEGORY, sy-vline,
  WA_IFLDFIBD-PURCHASINGPROCESSINGSTATUS, sy-vline,
  WA_IFLDFIBD-DELIVERYDOCUMENTITEMCATEGORY, sy-vline,
  WA_IFLDFIBD-OVERALLGOODSMOVEMENTSTATUS, sy-vline,
  WA_IFLDFIBD-DELIVERYDOCUMENTTYPE, sy-vline,
  WA_IFLDFIBD-REFERENCEDOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFLDFIBD 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_IFLDFIBD 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_IFLDFIBD INTO WA_IFLDFIBD.


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

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

*Conversion exit ALPHA, internal->external for field REFERENCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFLDFIBD-REFERENCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDFIBD-REFERENCEDOCUMENT.
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_IFLDFIBD_STR, 
MANDT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGPROCESSINGSTATUS TYPE STRING,
DELIVERYDOCUMENTITEMCATEGORY TYPE STRING,
OVERALLGOODSMOVEMENTSTATUS TYPE STRING,
DELIVERYDOCUMENTTYPE TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFPURCHASEREQUISITIONITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFLDFIBD_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_IFLDFIBD_STR-MANDT sy-vline 
WA_IFLDFIBD_STR-PURCHASINGDOCUMENT sy-vline 
WA_IFLDFIBD_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_IFLDFIBD_STR-DELIVERYDOCUMENT sy-vline 
WA_IFLDFIBD_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_IFLDFIBD_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_IFLDFIBD_STR-PURCHASINGPROCESSINGSTATUS sy-vline 
WA_IFLDFIBD_STR-DELIVERYDOCUMENTITEMCATEGORY sy-vline 
WA_IFLDFIBD_STR-OVERALLGOODSMOVEMENTSTATUS sy-vline 
WA_IFLDFIBD_STR-DELIVERYDOCUMENTTYPE sy-vline 
WA_IFLDFIBD_STR-REFERENCEDOCUMENT sy-vline 
WA_IFLDFIBD_STR-REFPURCHASEREQUISITIONITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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