ABAP Select data from SAP table FICAOI_LISTDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FICAOI_LISTDATA
*  INTO TABLE @DATA(IT_FICAOI_LISTDATA2).
*--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_FICAOI_LISTDATA INDEX 1 INTO DATA(WA_FICAOI_LISTDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FICAOI_LISTDATA>-GUID = 1.
<FICAOI_LISTDATA>-BLART = 1.
<FICAOI_LISTDATA>-DIFFB = 1.
<FICAOI_LISTDATA>-SKAKT = 1.
<FICAOI_LISTDATA>-AZWAE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FICAOI_LISTDATA-FIKEY, sy-vline,
  WA_FICAOI_LISTDATA-BUDAT, sy-vline,
  WA_FICAOI_LISTDATA-BLDAT, sy-vline,
  WA_FICAOI_LISTDATA-DATVZ, sy-vline,
  WA_FICAOI_LISTDATA-AUGBL, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FICAOI_LISTDATA 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_FICAOI_LISTDATA 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_FICAOI_LISTDATA INTO WA_FICAOI_LISTDATA.


*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 AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FICAOI_LISTDATA-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FICAOI_LISTDATA-AUGBL.
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_FICAOI_LISTDATA_STR, 
GUID TYPE STRING,
BLART TYPE STRING,
DIFFB TYPE STRING,
SKAKT TYPE STRING,
AZWAE TYPE STRING,
FIKEY TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
DATVZ TYPE STRING,
AUGBL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FICAOI_LISTDATA_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_FICAOI_LISTDATA_STR-GUID sy-vline 
WA_FICAOI_LISTDATA_STR-BLART sy-vline 
WA_FICAOI_LISTDATA_STR-DIFFB sy-vline 
WA_FICAOI_LISTDATA_STR-SKAKT sy-vline 
WA_FICAOI_LISTDATA_STR-AZWAE sy-vline 
WA_FICAOI_LISTDATA_STR-FIKEY sy-vline 
WA_FICAOI_LISTDATA_STR-BUDAT sy-vline 
WA_FICAOI_LISTDATA_STR-BLDAT sy-vline 
WA_FICAOI_LISTDATA_STR-DATVZ sy-vline 
WA_FICAOI_LISTDATA_STR-AUGBL sy-vline      INTO ld_text SEPARATED BY SPACE.

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