ABAP Select data from SAP table FIOTPOI into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FIOTPOI 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 FIOTPOI. 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 FIOTPOI 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_FIOTPOI TYPE STANDARD TABLE OF FIOTPOI,
      WA_FIOTPOI TYPE FIOTPOI,
      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: <FIOTPOI> TYPE FIOTPOI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIOTPOI
*  INTO TABLE @DATA(IT_FIOTPOI2).
*--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_FIOTPOI INDEX 1 INTO DATA(WA_FIOTPOI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIOTPOI>-MANDT = 1.
<FIOTPOI>-COMP = 1.
<FIOTPOI>-BUKRS = 1.
<FIOTPOI>-OBJID = 1.
<FIOTPOI>-SUBID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIOTPOI-TMSTAMP, sy-vline,
  WA_FIOTPOI-DOCNO, sy-vline,
  WA_FIOTPOI-ACCRULE, sy-vline,
  WA_FIOTPOI-DOCGROUP, sy-vline,
  WA_FIOTPOI-ACCASSGMT, sy-vline,
  WA_FIOTPOI-AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIOTPOI 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_FIOTPOI 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_FIOTPOI INTO WA_FIOTPOI.


*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 OBJ_SYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIOTPOI-OBJ_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIOTPOI-OBJ_SYS.
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_FIOTPOI_STR, 
MANDT TYPE STRING,
COMP TYPE STRING,
BUKRS TYPE STRING,
OBJID TYPE STRING,
SUBID TYPE STRING,
TMSTAMP TYPE STRING,
DOCNO TYPE STRING,
ACCRULE TYPE STRING,
DOCGROUP TYPE STRING,
ACCASSGMT TYPE STRING,
AMOUNT TYPE STRING,
ITEM_TXT TYPE STRING,
ALLOC_NMBR TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_KEY TYPE STRING,
OBJ_SYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIOTPOI_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_FIOTPOI_STR-MANDT sy-vline 
WA_FIOTPOI_STR-COMP sy-vline 
WA_FIOTPOI_STR-BUKRS sy-vline 
WA_FIOTPOI_STR-OBJID sy-vline 
WA_FIOTPOI_STR-SUBID sy-vline 
WA_FIOTPOI_STR-TMSTAMP sy-vline 
WA_FIOTPOI_STR-DOCNO sy-vline 
WA_FIOTPOI_STR-ACCRULE sy-vline 
WA_FIOTPOI_STR-DOCGROUP sy-vline 
WA_FIOTPOI_STR-ACCASSGMT sy-vline 
WA_FIOTPOI_STR-AMOUNT sy-vline 
WA_FIOTPOI_STR-ITEM_TXT sy-vline 
WA_FIOTPOI_STR-ALLOC_NMBR sy-vline 
WA_FIOTPOI_STR-OBJ_TYPE sy-vline 
WA_FIOTPOI_STR-OBJ_KEY sy-vline 
WA_FIOTPOI_STR-OBJ_SYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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