ABAP Select data from SAP table TFKB_015W into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TFKB_015W 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 TFKB_015W. 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 TFKB_015W 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_TFKB_015W TYPE STANDARD TABLE OF TFKB_015W,
      WA_TFKB_015W TYPE TFKB_015W,
      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: <TFKB_015W> TYPE TFKB_015W.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TFKB_015W.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TFKB_015W
  INTO TABLE IT_TFKB_015W.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFKB_015W
*  INTO TABLE @DATA(IT_TFKB_015W2).
*--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_TFKB_015W INDEX 1 INTO DATA(WA_TFKB_015W2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TFKB_015W ASSIGNING <TFKB_015W>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFKB_015W>-MANDT = 1.
<TFKB_015W>-LAND1 = 1.
<TFKB_015W>-ZLSCH = 1.
<TFKB_015W>-BUKRS = 1.
<TFKB_015W>-HBKID = 1.

ENDLOOP.

LOOP AT IT_TFKB_015W INTO WA_TFKB_015W.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFKB_015W-HKTID, sy-vline,
  WA_TFKB_015W-DTAWS, sy-vline,
  WA_TFKB_015W-DTWS1, sy-vline,
  WA_TFKB_015W-DTWS2, sy-vline,
  WA_TFKB_015W-DTWS3, sy-vline,
  WA_TFKB_015W-DTWS4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFKB_015W 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_TFKB_015W 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_TFKB_015W INTO WA_TFKB_015W.


*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_TFKB_015W_STR, 
MANDT TYPE STRING,
LAND1 TYPE STRING,
ZLSCH TYPE STRING,
BUKRS TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
DTAWS TYPE STRING,
DTWS1 TYPE STRING,
DTWS2 TYPE STRING,
DTWS3 TYPE STRING,
DTWS4 TYPE STRING,
DTZUS TYPE STRING,
DTKVS TYPE STRING,
DTKZA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFKB_015W_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_TFKB_015W_STR-MANDT sy-vline 
WA_TFKB_015W_STR-LAND1 sy-vline 
WA_TFKB_015W_STR-ZLSCH sy-vline 
WA_TFKB_015W_STR-BUKRS sy-vline 
WA_TFKB_015W_STR-HBKID sy-vline 
WA_TFKB_015W_STR-HKTID sy-vline 
WA_TFKB_015W_STR-DTAWS sy-vline 
WA_TFKB_015W_STR-DTWS1 sy-vline 
WA_TFKB_015W_STR-DTWS2 sy-vline 
WA_TFKB_015W_STR-DTWS3 sy-vline 
WA_TFKB_015W_STR-DTWS4 sy-vline 
WA_TFKB_015W_STR-DTZUS sy-vline 
WA_TFKB_015W_STR-DTKVS sy-vline 
WA_TFKB_015W_STR-DTKZA sy-vline      INTO ld_text SEPARATED BY SPACE.

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