ABAP Select data from SAP table V_TFK047B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TFK047B 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_TFK047B. 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_TFK047B 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_TFK047B TYPE STANDARD TABLE OF V_TFK047B,
      WA_V_TFK047B TYPE V_TFK047B,
      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_TFK047B> TYPE V_TFK047B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TFK047B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TFK047B
  INTO TABLE IT_V_TFK047B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TFK047B
*  INTO TABLE @DATA(IT_V_TFK047B2).
*--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_TFK047B INDEX 1 INTO DATA(WA_V_TFK047B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TFK047B ASSIGNING <V_TFK047B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TFK047B>-MANDT = 1.
<V_TFK047B>-MAHNV = 1.
<V_TFK047B>-MAHNS = 1.
<V_TFK047B>-VERTG = 1.
<V_TFK047B>-RHYTH = 1.

ENDLOOP.

LOOP AT IT_V_TFK047B INTO WA_V_TFK047B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TFK047B-FRIST, sy-vline,
  WA_V_TFK047B-XPOST, sy-vline,
  WA_V_TFK047B-XAEND, sy-vline,
  WA_V_TFK047B-BONIG, sy-vline,
  WA_V_TFK047B-XMFAK, sy-vline,
  WA_V_TFK047B-XMSUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TFK047B 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_TFK047B 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_TFK047B INTO WA_V_TFK047B.


*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_TFK047B_STR, 
MANDT TYPE STRING,
MAHNV TYPE STRING,
MAHNS TYPE STRING,
VERTG TYPE STRING,
RHYTH TYPE STRING,
FRIST TYPE STRING,
XPOST TYPE STRING,
XAEND TYPE STRING,
BONIG TYPE STRING,
XMFAK TYPE STRING,
XMSUS TYPE STRING,
XEXTM TYPE STRING,
IKEY TYPE STRING,
ICALC TYPE STRING,
IPOST TYPE STRING,
CHGID TYPE STRING,
MSTYP TYPE STRING,
CHGT1 TYPE STRING,
CHGT2 TYPE STRING,
CHGT3 TYPE STRING,
AVERT TYPE STRING,
ARHYT TYPE STRING,
XNBGM TYPE STRING,
MTEXT TYPE STRING,
MVTXT TYPE STRING,
MSTXT TYPE STRING,
MEMPF TYPE STRING,
INTFIRST TYPE STRING,
MINPZ TYPE STRING,
NEWDC TYPE STRING,
XDSUC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TFK047B_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_TFK047B_STR-MANDT sy-vline 
WA_V_TFK047B_STR-MAHNV sy-vline 
WA_V_TFK047B_STR-MAHNS sy-vline 
WA_V_TFK047B_STR-VERTG sy-vline 
WA_V_TFK047B_STR-RHYTH sy-vline 
WA_V_TFK047B_STR-FRIST sy-vline 
WA_V_TFK047B_STR-XPOST sy-vline 
WA_V_TFK047B_STR-XAEND sy-vline 
WA_V_TFK047B_STR-BONIG sy-vline 
WA_V_TFK047B_STR-XMFAK sy-vline 
WA_V_TFK047B_STR-XMSUS sy-vline 
WA_V_TFK047B_STR-XEXTM sy-vline 
WA_V_TFK047B_STR-IKEY sy-vline 
WA_V_TFK047B_STR-ICALC sy-vline 
WA_V_TFK047B_STR-IPOST sy-vline 
WA_V_TFK047B_STR-CHGID sy-vline 
WA_V_TFK047B_STR-MSTYP sy-vline 
WA_V_TFK047B_STR-CHGT1 sy-vline 
WA_V_TFK047B_STR-CHGT2 sy-vline 
WA_V_TFK047B_STR-CHGT3 sy-vline 
WA_V_TFK047B_STR-AVERT sy-vline 
WA_V_TFK047B_STR-ARHYT sy-vline 
WA_V_TFK047B_STR-XNBGM sy-vline 
WA_V_TFK047B_STR-MTEXT sy-vline 
WA_V_TFK047B_STR-MVTXT sy-vline 
WA_V_TFK047B_STR-MSTXT sy-vline 
WA_V_TFK047B_STR-MEMPF sy-vline 
WA_V_TFK047B_STR-INTFIRST sy-vline 
WA_V_TFK047B_STR-MINPZ sy-vline 
WA_V_TFK047B_STR-NEWDC sy-vline 
WA_V_TFK047B_STR-XDSUC sy-vline      INTO ld_text SEPARATED BY SPACE.

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