ABAP Select data from SAP table VXSITD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VXSITD
*  INTO TABLE @DATA(IT_VXSITD2).
*--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_VXSITD INDEX 1 INTO DATA(WA_VXSITD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VXSITD>-MANDT = 1.
<VXSITD>-XSITD = 1.
<VXSITD>-ACTIVE = 1.
<VXSITD>-SHIPACCT = 1.
<VXSITD>-XSIMDRFC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VXSITD-TRKRFCDEST, sy-vline,
  WA_VXSITD-TRKSAVE, sy-vline,
  WA_VXSITD-TRKDAYS, sy-vline,
  WA_VXSITD-TRKMANUAL, sy-vline,
  WA_VXSITD-TRKMULTI, sy-vline,
  WA_VXSITD-TRKPRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VXSITD 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_VXSITD 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_VXSITD INTO WA_VXSITD.


*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_VXSITD_STR, 
MANDT TYPE STRING,
XSITD TYPE STRING,
ACTIVE TYPE STRING,
SHIPACCT TYPE STRING,
XSIMDRFC TYPE STRING,
TRKRFCDEST TYPE STRING,
TRKSAVE TYPE STRING,
TRKDAYS TYPE STRING,
TRKMANUAL TYPE STRING,
TRKMULTI TYPE STRING,
TRKPRE TYPE STRING,
ROUTELOAD TYPE STRING,
ROUTELDAT TYPE STRING,
ROUTENDAT TYPE STRING,
NEWTASK TYPE STRING,
TRACKNEX TYPE STRING,
DATRFCDEST TYPE STRING,
TDFORM TYPE STRING,
XSITDNSO TYPE STRING,
TRKREQMAX TYPE STRING,
TRKREQTIMOUT TYPE STRING,
TDNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VXSITD_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_VXSITD_STR-MANDT sy-vline 
WA_VXSITD_STR-XSITD sy-vline 
WA_VXSITD_STR-ACTIVE sy-vline 
WA_VXSITD_STR-SHIPACCT sy-vline 
WA_VXSITD_STR-XSIMDRFC sy-vline 
WA_VXSITD_STR-TRKRFCDEST sy-vline 
WA_VXSITD_STR-TRKSAVE sy-vline 
WA_VXSITD_STR-TRKDAYS sy-vline 
WA_VXSITD_STR-TRKMANUAL sy-vline 
WA_VXSITD_STR-TRKMULTI sy-vline 
WA_VXSITD_STR-TRKPRE sy-vline 
WA_VXSITD_STR-ROUTELOAD sy-vline 
WA_VXSITD_STR-ROUTELDAT sy-vline 
WA_VXSITD_STR-ROUTENDAT sy-vline 
WA_VXSITD_STR-NEWTASK sy-vline 
WA_VXSITD_STR-TRACKNEX sy-vline 
WA_VXSITD_STR-DATRFCDEST sy-vline 
WA_VXSITD_STR-TDFORM sy-vline 
WA_VXSITD_STR-XSITDNSO sy-vline 
WA_VXSITD_STR-TRKREQMAX sy-vline 
WA_VXSITD_STR-TRKREQTIMOUT sy-vline 
WA_VXSITD_STR-TDNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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