ABAP Select data from SAP table TFK115 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TFK115 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 TFK115. 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 TFK115 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_TFK115 TYPE STANDARD TABLE OF TFK115,
      WA_TFK115 TYPE TFK115,
      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: <TFK115> TYPE TFK115.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TFK115.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TFK115
  INTO TABLE IT_TFK115.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFK115
*  INTO TABLE @DATA(IT_TFK1152).
*--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_TFK115 INDEX 1 INTO DATA(WA_TFK1152).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TFK115 ASSIGNING <TFK115>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFK115>-MANDT = 1.
<TFK115>-APPLK = 1.
<TFK115>-VERVAR = 1.
<TFK115>-STPNO = 1.
<TFK115>-FNAMG1 = 1.

ENDLOOP.

LOOP AT IT_TFK115 INTO WA_TFK115.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFK115-GRULE1, sy-vline,
  WA_TFK115-FNAMG2, sy-vline,
  WA_TFK115-GRULE2, sy-vline,
  WA_TFK115-FNAMG3, sy-vline,
  WA_TFK115-GRULE3, sy-vline,
  WA_TFK115-FNAMG4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFK115 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_TFK115 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_TFK115 INTO WA_TFK115.


*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_TFK115_STR, 
MANDT TYPE STRING,
APPLK TYPE STRING,
VERVAR TYPE STRING,
STPNO TYPE STRING,
FNAMG1 TYPE STRING,
GRULE1 TYPE STRING,
FNAMG2 TYPE STRING,
GRULE2 TYPE STRING,
FNAMG3 TYPE STRING,
GRULE3 TYPE STRING,
FNAMG4 TYPE STRING,
GRULE4 TYPE STRING,
FNAMG5 TYPE STRING,
GRULE5 TYPE STRING,
FNAMS1 TYPE STRING,
SRULE1 TYPE STRING,
XSODO1 TYPE STRING,
FNAMS2 TYPE STRING,
SRULE2 TYPE STRING,
XSODO2 TYPE STRING,
FNAMS3 TYPE STRING,
SRULE3 TYPE STRING,
XSODO3 TYPE STRING,
FNAMS4 TYPE STRING,
SRULE4 TYPE STRING,
XSODO4 TYPE STRING,
FNAMS5 TYPE STRING,
SRULE5 TYPE STRING,
XSODO5 TYPE STRING,
AMTRU TYPE STRING,
AMTGR TYPE STRING,
STLRU TYPE STRING,
VERVARA TYPE STRING,
STPNOA TYPE STRING,
FUNCC TYPE STRING,
XTOLA TYPE STRING,
VERVARR TYPE STRING,
STPNOR TYPE STRING,
VEXIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFK115_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_TFK115_STR-MANDT sy-vline 
WA_TFK115_STR-APPLK sy-vline 
WA_TFK115_STR-VERVAR sy-vline 
WA_TFK115_STR-STPNO sy-vline 
WA_TFK115_STR-FNAMG1 sy-vline 
WA_TFK115_STR-GRULE1 sy-vline 
WA_TFK115_STR-FNAMG2 sy-vline 
WA_TFK115_STR-GRULE2 sy-vline 
WA_TFK115_STR-FNAMG3 sy-vline 
WA_TFK115_STR-GRULE3 sy-vline 
WA_TFK115_STR-FNAMG4 sy-vline 
WA_TFK115_STR-GRULE4 sy-vline 
WA_TFK115_STR-FNAMG5 sy-vline 
WA_TFK115_STR-GRULE5 sy-vline 
WA_TFK115_STR-FNAMS1 sy-vline 
WA_TFK115_STR-SRULE1 sy-vline 
WA_TFK115_STR-XSODO1 sy-vline 
WA_TFK115_STR-FNAMS2 sy-vline 
WA_TFK115_STR-SRULE2 sy-vline 
WA_TFK115_STR-XSODO2 sy-vline 
WA_TFK115_STR-FNAMS3 sy-vline 
WA_TFK115_STR-SRULE3 sy-vline 
WA_TFK115_STR-XSODO3 sy-vline 
WA_TFK115_STR-FNAMS4 sy-vline 
WA_TFK115_STR-SRULE4 sy-vline 
WA_TFK115_STR-XSODO4 sy-vline 
WA_TFK115_STR-FNAMS5 sy-vline 
WA_TFK115_STR-SRULE5 sy-vline 
WA_TFK115_STR-XSODO5 sy-vline 
WA_TFK115_STR-AMTRU sy-vline 
WA_TFK115_STR-AMTGR sy-vline 
WA_TFK115_STR-STLRU sy-vline 
WA_TFK115_STR-VERVARA sy-vline 
WA_TFK115_STR-STPNOA sy-vline 
WA_TFK115_STR-FUNCC sy-vline 
WA_TFK115_STR-XTOLA sy-vline 
WA_TFK115_STR-VERVARR sy-vline 
WA_TFK115_STR-STPNOR sy-vline 
WA_TFK115_STR-VEXIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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