ABAP Select data from SAP table VTVDETK_WP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVDETK_WP
*  INTO TABLE @DATA(IT_VTVDETK_WP2).
*--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_VTVDETK_WP INDEX 1 INTO DATA(WA_VTVDETK_WP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVDETK_WP>-WZBETR = 1.
<VTVDETK_WP>-SPLWHR = 1.
<VTVDETK_WP>-D_CAHW = 1.
<VTVDETK_WP>-D_CACW = 1.
<VTVDETK_WP>-D_AWHW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVDETK_WP-D_AWBW, sy-vline,
  WA_VTVDETK_WP-D_BWHW, sy-vline,
  WA_VTVDETK_WP-D_BWBW, sy-vline,
  WA_VTVDETK_WP-D_NKBWBW, sy-vline,
  WA_VTVDETK_WP-D_NKBWHW, sy-vline,
  WA_VTVDETK_WP-D_BOOK_VAL_EX_PC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVDETK_WP 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_VTVDETK_WP 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_VTVDETK_WP INTO WA_VTVDETK_WP.


*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_VTVDETK_WP_STR, 
WZBETR TYPE STRING,
SPLWHR TYPE STRING,
D_CAHW TYPE STRING,
D_CACW TYPE STRING,
D_AWHW TYPE STRING,
D_AWBW TYPE STRING,
D_BWHW TYPE STRING,
D_BWBW TYPE STRING,
D_NKBWBW TYPE STRING,
D_NKBWHW TYPE STRING,
D_BOOK_VAL_EX_PC TYPE STRING,
D_BOOK_VAL_EX_LC TYPE STRING,
D_ERHW TYPE STRING,
D_ERFOLGPLW TYPE STRING,
D_BNBW TYPE STRING,
PABGERFHW TYPE STRING,
PABGERFPL TYPE STRING,
D_ASTUECK TYPE STRING,
R_KSTHT TYPE STRING,
R_KSTFT TYPE STRING,
R_KPRHT TYPE STRING,
R_KPRFT TYPE STRING,
D_VAL_TI_PC TYPE STRING,
D_VAL_TI_LC TYPE STRING,
D_VAL_FX_LC TYPE STRING,
D_VAL_CH_TI_PC TYPE STRING,
D_VAL_CH_TI_LC TYPE STRING,
D_VAL_CH_FX_LC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVDETK_WP_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_VTVDETK_WP_STR-WZBETR sy-vline 
WA_VTVDETK_WP_STR-SPLWHR sy-vline 
WA_VTVDETK_WP_STR-D_CAHW sy-vline 
WA_VTVDETK_WP_STR-D_CACW sy-vline 
WA_VTVDETK_WP_STR-D_AWHW sy-vline 
WA_VTVDETK_WP_STR-D_AWBW sy-vline 
WA_VTVDETK_WP_STR-D_BWHW sy-vline 
WA_VTVDETK_WP_STR-D_BWBW sy-vline 
WA_VTVDETK_WP_STR-D_NKBWBW sy-vline 
WA_VTVDETK_WP_STR-D_NKBWHW sy-vline 
WA_VTVDETK_WP_STR-D_BOOK_VAL_EX_PC sy-vline 
WA_VTVDETK_WP_STR-D_BOOK_VAL_EX_LC sy-vline 
WA_VTVDETK_WP_STR-D_ERHW sy-vline 
WA_VTVDETK_WP_STR-D_ERFOLGPLW sy-vline 
WA_VTVDETK_WP_STR-D_BNBW sy-vline 
WA_VTVDETK_WP_STR-PABGERFHW sy-vline 
WA_VTVDETK_WP_STR-PABGERFPL sy-vline 
WA_VTVDETK_WP_STR-D_ASTUECK sy-vline 
WA_VTVDETK_WP_STR-R_KSTHT sy-vline 
WA_VTVDETK_WP_STR-R_KSTFT sy-vline 
WA_VTVDETK_WP_STR-R_KPRHT sy-vline 
WA_VTVDETK_WP_STR-R_KPRFT sy-vline 
WA_VTVDETK_WP_STR-D_VAL_TI_PC sy-vline 
WA_VTVDETK_WP_STR-D_VAL_TI_LC sy-vline 
WA_VTVDETK_WP_STR-D_VAL_FX_LC sy-vline 
WA_VTVDETK_WP_STR-D_VAL_CH_TI_PC sy-vline 
WA_VTVDETK_WP_STR-D_VAL_CH_TI_LC sy-vline 
WA_VTVDETK_WP_STR-D_VAL_CH_FX_LC sy-vline      INTO ld_text SEPARATED BY SPACE.

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