ABAP Select data from SAP table TFK053C into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TFK053C 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 TFK053C. 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 TFK053C 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_TFK053C TYPE STANDARD TABLE OF TFK053C,
      WA_TFK053C TYPE TFK053C,
      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: <TFK053C> TYPE TFK053C.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TFK053C.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TFK053C
  INTO TABLE IT_TFK053C.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFK053C
*  INTO TABLE @DATA(IT_TFK053C2).
*--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_TFK053C INDEX 1 INTO DATA(WA_TFK053C2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TFK053C ASSIGNING <TFK053C>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFK053C>-MANDT = 1.
<TFK053C>-USRVA = 1.
<TFK053C>-TAMOD = 1.
<TFK053C>-TRANS = 1.
<TFK053C>-XNOWM = 1.

ENDLOOP.

LOOP AT IT_TFK053C INTO WA_TFK053C.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFK053C-CORRE, sy-vline,
  WA_TFK053C-CORRA, sy-vline,
  WA_TFK053C-XPRCO, sy-vline,
  WA_TFK053C-XCORF, sy-vline,
  WA_TFK053C-CONTE, sy-vline,
  WA_TFK053C-XCONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFK053C 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_TFK053C 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_TFK053C INTO WA_TFK053C.


*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_TFK053C_STR, 
MANDT TYPE STRING,
USRVA TYPE STRING,
TAMOD TYPE STRING,
TRANS TYPE STRING,
XNOWM TYPE STRING,
CORRE TYPE STRING,
CORRA TYPE STRING,
XPRCO TYPE STRING,
XCORF TYPE STRING,
CONTE TYPE STRING,
XCONT TYPE STRING,
BANKS TYPE STRING,
XBNKS TYPE STRING,
XBKNT TYPE STRING,
XBKRF TYPE STRING,
XRULS TYPE STRING,
XRULX TYPE STRING,
XRULM TYPE STRING,
DEFBK TYPE STRING,
XKNUBK TYPE STRING,
XNIBA TYPE STRING,
IBACH TYPE STRING,
XNCHG TYPE STRING,
BKGRD TYPE STRING,
CCGRD TYPE STRING,
XNAUB TYPE STRING,
XNAUD TYPE STRING,
XNCCL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFK053C_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_TFK053C_STR-MANDT sy-vline 
WA_TFK053C_STR-USRVA sy-vline 
WA_TFK053C_STR-TAMOD sy-vline 
WA_TFK053C_STR-TRANS sy-vline 
WA_TFK053C_STR-XNOWM sy-vline 
WA_TFK053C_STR-CORRE sy-vline 
WA_TFK053C_STR-CORRA sy-vline 
WA_TFK053C_STR-XPRCO sy-vline 
WA_TFK053C_STR-XCORF sy-vline 
WA_TFK053C_STR-CONTE sy-vline 
WA_TFK053C_STR-XCONT sy-vline 
WA_TFK053C_STR-BANKS sy-vline 
WA_TFK053C_STR-XBNKS sy-vline 
WA_TFK053C_STR-XBKNT sy-vline 
WA_TFK053C_STR-XBKRF sy-vline 
WA_TFK053C_STR-XRULS sy-vline 
WA_TFK053C_STR-XRULX sy-vline 
WA_TFK053C_STR-XRULM sy-vline 
WA_TFK053C_STR-DEFBK sy-vline 
WA_TFK053C_STR-XKNUBK sy-vline 
WA_TFK053C_STR-XNIBA sy-vline 
WA_TFK053C_STR-IBACH sy-vline 
WA_TFK053C_STR-XNCHG sy-vline 
WA_TFK053C_STR-BKGRD sy-vline 
WA_TFK053C_STR-CCGRD sy-vline 
WA_TFK053C_STR-XNAUB sy-vline 
WA_TFK053C_STR-XNAUD sy-vline 
WA_TFK053C_STR-XNCCL sy-vline      INTO ld_text SEPARATED BY SPACE.

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