ABAP Select data from SAP table VV_TKESV_FB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VV_TKESV_FB
*  INTO TABLE @DATA(IT_VV_TKESV_FB2).
*--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_VV_TKESV_FB INDEX 1 INTO DATA(WA_VV_TKESV_FB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VV_TKESV_FB>-MANDT = 1.
<VV_TKESV_FB>-APPLCLASS = 1.
<VV_TKESV_FB>-VARTYP = 1.
<VV_TKESV_FB>-FNAM = 1.
<VV_TKESV_FB>-VNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VV_TKESV_FB-VARRART, sy-vline,
  WA_VV_TKESV_FB-VNOOBL, sy-vline,
  WA_VV_TKESV_FB-QFNAM, sy-vline,
  WA_VV_TKESV_FB-FLAGLH, sy-vline,
  WA_VV_TKESV_FB-FLAGR, sy-vline,
  WA_VV_TKESV_FB-FOFFSET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VV_TKESV_FB 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_VV_TKESV_FB 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_VV_TKESV_FB INTO WA_VV_TKESV_FB.


*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.

*Conversion exit CUNIT, internal->external for field EMEEHT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VV_TKESV_FB-EMEEHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VV_TKESV_FB-EMEEHT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VV_TKESV_FB_STR, 
MANDT TYPE STRING,
APPLCLASS TYPE STRING,
VARTYP TYPE STRING,
FNAM TYPE STRING,
VNAM TYPE STRING,
VARRART TYPE STRING,
VNOOBL TYPE STRING,
QFNAM TYPE STRING,
FLAGLH TYPE STRING,
FLAGR TYPE STRING,
FOFFSET TYPE STRING,
FLENGTH TYPE STRING,
TLENGTH TYPE STRING,
KEYID TYPE STRING,
FLSTART TYPE STRING,
MWKZ TYPE STRING,
WAERS TYPE STRING,
EMEEHT TYPE STRING,
VARZTPKT TYPE STRING,
VPARSEL TYPE STRING,
VDEFAULT TYPE STRING,
TXTKZ TYPE STRING,
TXTMT TYPE STRING,
TXTLG TYPE STRING,
FIXTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VV_TKESV_FB_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_VV_TKESV_FB_STR-MANDT sy-vline 
WA_VV_TKESV_FB_STR-APPLCLASS sy-vline 
WA_VV_TKESV_FB_STR-VARTYP sy-vline 
WA_VV_TKESV_FB_STR-FNAM sy-vline 
WA_VV_TKESV_FB_STR-VNAM sy-vline 
WA_VV_TKESV_FB_STR-VARRART sy-vline 
WA_VV_TKESV_FB_STR-VNOOBL sy-vline 
WA_VV_TKESV_FB_STR-QFNAM sy-vline 
WA_VV_TKESV_FB_STR-FLAGLH sy-vline 
WA_VV_TKESV_FB_STR-FLAGR sy-vline 
WA_VV_TKESV_FB_STR-FOFFSET sy-vline 
WA_VV_TKESV_FB_STR-FLENGTH sy-vline 
WA_VV_TKESV_FB_STR-TLENGTH sy-vline 
WA_VV_TKESV_FB_STR-KEYID sy-vline 
WA_VV_TKESV_FB_STR-FLSTART sy-vline 
WA_VV_TKESV_FB_STR-MWKZ sy-vline 
WA_VV_TKESV_FB_STR-WAERS sy-vline 
WA_VV_TKESV_FB_STR-EMEEHT sy-vline 
WA_VV_TKESV_FB_STR-VARZTPKT sy-vline 
WA_VV_TKESV_FB_STR-VPARSEL sy-vline 
WA_VV_TKESV_FB_STR-VDEFAULT sy-vline 
WA_VV_TKESV_FB_STR-TXTKZ sy-vline 
WA_VV_TKESV_FB_STR-TXTMT sy-vline 
WA_VV_TKESV_FB_STR-TXTLG sy-vline 
WA_VV_TKESV_FB_STR-FIXTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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