ABAP Select data from SAP table V_TFK042Z into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TFK042Z 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 V_TFK042Z. 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 V_TFK042Z 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_V_TFK042Z TYPE STANDARD TABLE OF V_TFK042Z,
      WA_V_TFK042Z TYPE V_TFK042Z,
      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: <V_TFK042Z> TYPE V_TFK042Z.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TFK042Z.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TFK042Z
  INTO TABLE IT_V_TFK042Z.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TFK042Z
*  INTO TABLE @DATA(IT_V_TFK042Z2).
*--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_V_TFK042Z INDEX 1 INTO DATA(WA_V_TFK042Z2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TFK042Z ASSIGNING <V_TFK042Z>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TFK042Z>-MANDT = 1.
<V_TFK042Z>-LAND1 = 1.
<V_TFK042Z>-ZLSCH = 1.
<V_TFK042Z>-XBKKT = 1.
<V_TFK042Z>-XSTRA = 1.

ENDLOOP.

LOOP AT IT_V_TFK042Z INTO WA_V_TFK042Z.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TFK042Z-XEINZ, sy-vline,
  WA_V_TFK042Z-XPGIR, sy-vline,
  WA_V_TFK042Z-XSCHK, sy-vline,
  WA_V_TFK042Z-XEURO, sy-vline,
  WA_V_TFK042Z-XVERR, sy-vline,
  WA_V_TFK042Z-TEXT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TFK042Z 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_V_TFK042Z 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_V_TFK042Z INTO WA_V_TFK042Z.


*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_V_TFK042Z_STR, 
MANDT TYPE STRING,
LAND1 TYPE STRING,
ZLSCH TYPE STRING,
XBKKT TYPE STRING,
XSTRA TYPE STRING,
XEINZ TYPE STRING,
XPGIR TYPE STRING,
XSCHK TYPE STRING,
XEURO TYPE STRING,
XVERR TYPE STRING,
TEXT1 TYPE STRING,
FORMI TYPE STRING,
FORMZ TYPE STRING,
FORMY TYPE STRING,
XNOPO TYPE STRING,
XEBPP TYPE STRING,
XESRD TYPE STRING,
XADDR TYPE STRING,
BOLTY TYPE STRING,
DDATY TYPE STRING,
XIBAN TYPE STRING,
XSEPA TYPE STRING,
PNOPT TYPE STRING,
RTPTY TYPE STRING,
XINPA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TFK042Z_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_V_TFK042Z_STR-MANDT sy-vline 
WA_V_TFK042Z_STR-LAND1 sy-vline 
WA_V_TFK042Z_STR-ZLSCH sy-vline 
WA_V_TFK042Z_STR-XBKKT sy-vline 
WA_V_TFK042Z_STR-XSTRA sy-vline 
WA_V_TFK042Z_STR-XEINZ sy-vline 
WA_V_TFK042Z_STR-XPGIR sy-vline 
WA_V_TFK042Z_STR-XSCHK sy-vline 
WA_V_TFK042Z_STR-XEURO sy-vline 
WA_V_TFK042Z_STR-XVERR sy-vline 
WA_V_TFK042Z_STR-TEXT1 sy-vline 
WA_V_TFK042Z_STR-FORMI sy-vline 
WA_V_TFK042Z_STR-FORMZ sy-vline 
WA_V_TFK042Z_STR-FORMY sy-vline 
WA_V_TFK042Z_STR-XNOPO sy-vline 
WA_V_TFK042Z_STR-XEBPP sy-vline 
WA_V_TFK042Z_STR-XESRD sy-vline 
WA_V_TFK042Z_STR-XADDR sy-vline 
WA_V_TFK042Z_STR-BOLTY sy-vline 
WA_V_TFK042Z_STR-DDATY sy-vline 
WA_V_TFK042Z_STR-XIBAN sy-vline 
WA_V_TFK042Z_STR-XSEPA sy-vline 
WA_V_TFK042Z_STR-PNOPT sy-vline 
WA_V_TFK042Z_STR-RTPTY sy-vline 
WA_V_TFK042Z_STR-XINPA sy-vline      INTO ld_text SEPARATED BY SPACE.

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