ABAP Select data from SAP table FTCON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FTCON
*  INTO TABLE @DATA(IT_FTCON2).
*--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_FTCON INDEX 1 INTO DATA(WA_FTCON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FTCON>-KWLDI = 1.
<FTCON>-DEL_DATA = 1.
<FTCON>-CHECK_CORE = 1.
<FTCON>-SLDKZ = 1.
<FTCON>-SHOW_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FTCON-P_PRZAB, sy-vline,
  WA_FTCON-P_ANZTG, sy-vline,
  WA_FTCON-CHECK_ANZ, sy-vline,
  WA_FTCON-CHECK_PER, sy-vline,
  WA_FTCON-P_AUFTR, sy-vline,
  WA_FTCON-P_LIEFR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FTCON 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_FTCON 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_FTCON INTO WA_FTCON.


*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_FTCON_STR, 
KWLDI TYPE STRING,
DEL_DATA TYPE STRING,
CHECK_CORE TYPE STRING,
SLDKZ TYPE STRING,
SHOW_TEXT TYPE STRING,
P_PRZAB TYPE STRING,
P_ANZTG TYPE STRING,
CHECK_ANZ TYPE STRING,
CHECK_PER TYPE STRING,
P_AUFTR TYPE STRING,
P_LIEFR TYPE STRING,
GKEYW TYPE STRING,
P_KUM TYPE STRING,
P_FILE TYPE STRING,
LIFTYP TYPE STRING,
DISP_ALL TYPE STRING,
SHOW_MSG TYPE STRING,
VAR_CON TYPE STRING,
P_GEGRU TYPE STRING,
P_GEART TYPE STRING,
P_ALAND TYPE STRING,
P_EXLND TYPE STRING,
P_PRKLAS TYPE STRING,
P_LAKLAS TYPE STRING,
P_FORMR TYPE STRING,
P_LGRUP TYPE STRING,
P_ALNUM TYPE STRING,
P_EMBGR TYPE STRING,
P_LANDEX TYPE STRING,
P_WRKLND TYPE STRING,
P_LICENS TYPE STRING,
P_BEZEI TYPE STRING,
P_BELTYP TYPE STRING,
P_POSTYP TYPE STRING,
P_ALNEMB TYPE STRING,
P_DISC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FTCON_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_FTCON_STR-KWLDI sy-vline 
WA_FTCON_STR-DEL_DATA sy-vline 
WA_FTCON_STR-CHECK_CORE sy-vline 
WA_FTCON_STR-SLDKZ sy-vline 
WA_FTCON_STR-SHOW_TEXT sy-vline 
WA_FTCON_STR-P_PRZAB sy-vline 
WA_FTCON_STR-P_ANZTG sy-vline 
WA_FTCON_STR-CHECK_ANZ sy-vline 
WA_FTCON_STR-CHECK_PER sy-vline 
WA_FTCON_STR-P_AUFTR sy-vline 
WA_FTCON_STR-P_LIEFR sy-vline 
WA_FTCON_STR-GKEYW sy-vline 
WA_FTCON_STR-P_KUM sy-vline 
WA_FTCON_STR-P_FILE sy-vline 
WA_FTCON_STR-LIFTYP sy-vline 
WA_FTCON_STR-DISP_ALL sy-vline 
WA_FTCON_STR-SHOW_MSG sy-vline 
WA_FTCON_STR-VAR_CON sy-vline 
WA_FTCON_STR-P_GEGRU sy-vline 
WA_FTCON_STR-P_GEART sy-vline 
WA_FTCON_STR-P_ALAND sy-vline 
WA_FTCON_STR-P_EXLND sy-vline 
WA_FTCON_STR-P_PRKLAS sy-vline 
WA_FTCON_STR-P_LAKLAS sy-vline 
WA_FTCON_STR-P_FORMR sy-vline 
WA_FTCON_STR-P_LGRUP sy-vline 
WA_FTCON_STR-P_ALNUM sy-vline 
WA_FTCON_STR-P_EMBGR sy-vline 
WA_FTCON_STR-P_LANDEX sy-vline 
WA_FTCON_STR-P_WRKLND sy-vline 
WA_FTCON_STR-P_LICENS sy-vline 
WA_FTCON_STR-P_BEZEI sy-vline 
WA_FTCON_STR-P_BELTYP sy-vline 
WA_FTCON_STR-P_POSTYP sy-vline 
WA_FTCON_STR-P_ALNEMB sy-vline 
WA_FTCON_STR-P_DISC sy-vline      INTO ld_text SEPARATED BY SPACE.

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