ABAP Select data from SAP table VTRK_D2 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP VTRK_D2 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 VTRK_D2. 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 VTRK_D2 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_VTRK_D2 TYPE STANDARD TABLE OF VTRK_D2,
      WA_VTRK_D2 TYPE VTRK_D2,
      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: <VTRK_D2> TYPE VTRK_D2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VTRK_D2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VTRK_D2
  INTO TABLE IT_VTRK_D2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTRK_D2
*  INTO TABLE @DATA(IT_VTRK_D22).
*--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_VTRK_D2 INDEX 1 INTO DATA(WA_VTRK_D22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VTRK_D2 ASSIGNING <VTRK_D2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTRK_D2>-XSITD = 1.
<VTRK_D2>-XSITDT = 1.
<VTRK_D2>-TRACKN = 1.
<VTRK_D2>-TRACKNCOUN = 1.
<VTRK_D2>-SHIPACCT = 1.

ENDLOOP.

LOOP AT IT_VTRK_D2 INTO WA_VTRK_D2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTRK_D2-XSISRVC, sy-vline,
  WA_VTRK_D2-XSISRVCP, sy-vline,
  WA_VTRK_D2-XSISRVCGRP, sy-vline,
  WA_VTRK_D2-SRVCTEXT, sy-vline,
  WA_VTRK_D2-PRDCD, sy-vline,
  WA_VTRK_D2-PRDTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTRK_D2 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_VTRK_D2 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_VTRK_D2 INTO WA_VTRK_D2.


*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_VTRK_D2_STR, 
XSITD TYPE STRING,
XSITDT TYPE STRING,
TRACKN TYPE STRING,
TRACKNCOUN TYPE STRING,
SHIPACCT TYPE STRING,
XSISRVC TYPE STRING,
XSISRVCP TYPE STRING,
XSISRVCGRP TYPE STRING,
SRVCTEXT TYPE STRING,
PRDCD TYPE STRING,
PRDTEXT TYPE STRING,
PACKNO TYPE STRING,
PACKMAX TYPE STRING,
ROUTELDAT TYPE STRING,
GEWCD TYPE STRING,
KVSTERM TYPE STRING,
ROUTECODE TYPE STRING,
XSITOUR TYPE STRING,
XSIHUBE TYPE STRING,
XSIHUBZ TYPE STRING,
XSIHUBA TYPE STRING,
DUMMY12 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTRK_D2_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_VTRK_D2_STR-XSITD sy-vline 
WA_VTRK_D2_STR-XSITDT sy-vline 
WA_VTRK_D2_STR-TRACKN sy-vline 
WA_VTRK_D2_STR-TRACKNCOUN sy-vline 
WA_VTRK_D2_STR-SHIPACCT sy-vline 
WA_VTRK_D2_STR-XSISRVC sy-vline 
WA_VTRK_D2_STR-XSISRVCP sy-vline 
WA_VTRK_D2_STR-XSISRVCGRP sy-vline 
WA_VTRK_D2_STR-SRVCTEXT sy-vline 
WA_VTRK_D2_STR-PRDCD sy-vline 
WA_VTRK_D2_STR-PRDTEXT sy-vline 
WA_VTRK_D2_STR-PACKNO sy-vline 
WA_VTRK_D2_STR-PACKMAX sy-vline 
WA_VTRK_D2_STR-ROUTELDAT sy-vline 
WA_VTRK_D2_STR-GEWCD sy-vline 
WA_VTRK_D2_STR-KVSTERM sy-vline 
WA_VTRK_D2_STR-ROUTECODE sy-vline 
WA_VTRK_D2_STR-XSITOUR sy-vline 
WA_VTRK_D2_STR-XSIHUBE sy-vline 
WA_VTRK_D2_STR-XSIHUBZ sy-vline 
WA_VTRK_D2_STR-XSIHUBA sy-vline 
WA_VTRK_D2_STR-DUMMY12 sy-vline      INTO ld_text SEPARATED BY SPACE.

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