ABAP Select data from SAP table TFK033C1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TFK033C1 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 TFK033C1. 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 TFK033C1 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_TFK033C1 TYPE STANDARD TABLE OF TFK033C1,
      WA_TFK033C1 TYPE TFK033C1,
      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: <TFK033C1> TYPE TFK033C1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TFK033C1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TFK033C1
  INTO TABLE IT_TFK033C1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFK033C1
*  INTO TABLE @DATA(IT_TFK033C12).
*--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_TFK033C1 INDEX 1 INTO DATA(WA_TFK033C12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TFK033C1 ASSIGNING <TFK033C1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFK033C1>-APPLK = 1.
<TFK033C1>-BUBER = 1.
<TFK033C1>-KF4B1 = 1.
<TFK033C1>-KF4B2 = 1.
<TFK033C1>-KF4B3 = 1.

ENDLOOP.

LOOP AT IT_TFK033C1 INTO WA_TFK033C1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFK033C1-KF4B4, sy-vline,
  WA_TFK033C1-KF4B5, sy-vline,
  WA_TFK033C1-KF4B6, sy-vline,
  WA_TFK033C1-KF4B7, sy-vline,
  WA_TFK033C1-KF4B8, sy-vline,
  WA_TFK033C1-FF4B1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFK033C1 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_TFK033C1 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_TFK033C1 INTO WA_TFK033C1.


*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_TFK033C1_STR, 
APPLK TYPE STRING,
BUBER TYPE STRING,
KF4B1 TYPE STRING,
KF4B2 TYPE STRING,
KF4B3 TYPE STRING,
KF4B4 TYPE STRING,
KF4B5 TYPE STRING,
KF4B6 TYPE STRING,
KF4B7 TYPE STRING,
KF4B8 TYPE STRING,
FF4B1 TYPE STRING,
FF4B2 TYPE STRING,
FF4B3 TYPE STRING,
FF4B4 TYPE STRING,
FF4B5 TYPE STRING,
FF4B6 TYPE STRING,
KF1B1 TYPE STRING,
KF1B2 TYPE STRING,
KF1B3 TYPE STRING,
KF1B4 TYPE STRING,
KF1B5 TYPE STRING,
KF1B6 TYPE STRING,
KF1B7 TYPE STRING,
KF1B8 TYPE STRING,
FF1B1 TYPE STRING,
FF1B2 TYPE STRING,
FF1B3 TYPE STRING,
FF1B4 TYPE STRING,
FF1B5 TYPE STRING,
FF1B6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFK033C1_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_TFK033C1_STR-APPLK sy-vline 
WA_TFK033C1_STR-BUBER sy-vline 
WA_TFK033C1_STR-KF4B1 sy-vline 
WA_TFK033C1_STR-KF4B2 sy-vline 
WA_TFK033C1_STR-KF4B3 sy-vline 
WA_TFK033C1_STR-KF4B4 sy-vline 
WA_TFK033C1_STR-KF4B5 sy-vline 
WA_TFK033C1_STR-KF4B6 sy-vline 
WA_TFK033C1_STR-KF4B7 sy-vline 
WA_TFK033C1_STR-KF4B8 sy-vline 
WA_TFK033C1_STR-FF4B1 sy-vline 
WA_TFK033C1_STR-FF4B2 sy-vline 
WA_TFK033C1_STR-FF4B3 sy-vline 
WA_TFK033C1_STR-FF4B4 sy-vline 
WA_TFK033C1_STR-FF4B5 sy-vline 
WA_TFK033C1_STR-FF4B6 sy-vline 
WA_TFK033C1_STR-KF1B1 sy-vline 
WA_TFK033C1_STR-KF1B2 sy-vline 
WA_TFK033C1_STR-KF1B3 sy-vline 
WA_TFK033C1_STR-KF1B4 sy-vline 
WA_TFK033C1_STR-KF1B5 sy-vline 
WA_TFK033C1_STR-KF1B6 sy-vline 
WA_TFK033C1_STR-KF1B7 sy-vline 
WA_TFK033C1_STR-KF1B8 sy-vline 
WA_TFK033C1_STR-FF1B1 sy-vline 
WA_TFK033C1_STR-FF1B2 sy-vline 
WA_TFK033C1_STR-FF1B3 sy-vline 
WA_TFK033C1_STR-FF1B4 sy-vline 
WA_TFK033C1_STR-FF1B5 sy-vline 
WA_TFK033C1_STR-FF1B6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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