ABAP Select data from SAP table FFO_LB_FILE_S_REFERENCE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FFO_LB_FILE_S_REFERENCE
*  INTO TABLE @DATA(IT_FFO_LB_FILE_S_REFERENCE2).
*--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_FFO_LB_FILE_S_REFERENCE INDEX 1 INTO DATA(WA_FFO_LB_FILE_S_REFERENCE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FFO_LB_FILE_S_REFERENCE>-KEY = 1.
<FFO_LB_FILE_S_REFERENCE>-PARENT_KEY = 1.
<FFO_LB_FILE_S_REFERENCE>-ROOT_KEY = 1.
<FFO_LB_FILE_S_REFERENCE>-OR001 = 1.
<FFO_LB_FILE_S_REFERENCE>-OR002 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FFO_LB_FILE_S_REFERENCE-OR003, sy-vline,
  WA_FFO_LB_FILE_S_REFERENCE-OR004, sy-vline,
  WA_FFO_LB_FILE_S_REFERENCE-OR005, sy-vline,
  WA_FFO_LB_FILE_S_REFERENCE-OR006, sy-vline,
  WA_FFO_LB_FILE_S_REFERENCE-IVCNR, sy-vline,
  WA_FFO_LB_FILE_S_REFERENCE-PYAMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FFO_LB_FILE_S_REFERENCE 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_FFO_LB_FILE_S_REFERENCE 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_FFO_LB_FILE_S_REFERENCE INTO WA_FFO_LB_FILE_S_REFERENCE.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FFO_LB_FILE_S_REFERENCE_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
OR001 TYPE STRING,
OR002 TYPE STRING,
OR003 TYPE STRING,
OR004 TYPE STRING,
OR005 TYPE STRING,
OR006 TYPE STRING,
IVCNR TYPE STRING,
PYAMT TYPE STRING,
DDAMT TYPE STRING,
RESTG TYPE STRING,
OR011 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FFO_LB_FILE_S_REFERENCE_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_FFO_LB_FILE_S_REFERENCE_STR-KEY sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-PARENT_KEY sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-ROOT_KEY sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-OR001 sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-OR002 sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-OR003 sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-OR004 sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-OR005 sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-OR006 sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-IVCNR sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-PYAMT sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-DDAMT sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-RESTG sy-vline 
WA_FFO_LB_FILE_S_REFERENCE_STR-OR011 sy-vline      INTO ld_text SEPARATED BY SPACE.

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