ABAP Select data from SAP table SCTS_TRACK_VMK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCTS_TRACK_VMK
*  INTO TABLE @DATA(IT_SCTS_TRACK_VMK2).
*--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_SCTS_TRACK_VMK INDEX 1 INTO DATA(WA_SCTS_TRACK_VMK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCTS_TRACK_VMK>-OBJECT_ID = 1.
<SCTS_TRACK_VMK>-REQUEST_ID = 1.
<SCTS_TRACK_VMK>-POS = 1.
<SCTS_TRACK_VMK>-SYSTEM_NAME = 1.
<SCTS_TRACK_VMK>-DOMAIN_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCTS_TRACK_VMK-SYSTEM_CLIENT, sy-vline,
  WA_SCTS_TRACK_VMK-OPERATION, sy-vline,
  WA_SCTS_TRACK_VMK-KEY_ID, sy-vline,
  WA_SCTS_TRACK_VMK-VERSION, sy-vline,
  WA_SCTS_TRACK_VMK-STATUS, sy-vline,
  WA_SCTS_TRACK_VMK-MASTERTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCTS_TRACK_VMK 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_SCTS_TRACK_VMK 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_SCTS_TRACK_VMK INTO WA_SCTS_TRACK_VMK.


*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 ISOLA, internal->external for field LANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SCTS_TRACK_VMK-LANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCTS_TRACK_VMK-LANG.
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_SCTS_TRACK_VMK_STR, 
OBJECT_ID TYPE STRING,
REQUEST_ID TYPE STRING,
POS TYPE STRING,
SYSTEM_NAME TYPE STRING,
DOMAIN_NAME TYPE STRING,
SYSTEM_CLIENT TYPE STRING,
OPERATION TYPE STRING,
KEY_ID TYPE STRING,
VERSION TYPE STRING,
STATUS TYPE STRING,
MASTERTYPE TYPE STRING,
MASTERNAME TYPE STRING,
VIEWNAME TYPE STRING,
OBJFUNC TYPE STRING,
TABKEY TYPE STRING,
SORTFLAG TYPE STRING,
FLAG TYPE STRING,
LANG TYPE STRING,
ACTIVITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCTS_TRACK_VMK_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_SCTS_TRACK_VMK_STR-OBJECT_ID sy-vline 
WA_SCTS_TRACK_VMK_STR-REQUEST_ID sy-vline 
WA_SCTS_TRACK_VMK_STR-POS sy-vline 
WA_SCTS_TRACK_VMK_STR-SYSTEM_NAME sy-vline 
WA_SCTS_TRACK_VMK_STR-DOMAIN_NAME sy-vline 
WA_SCTS_TRACK_VMK_STR-SYSTEM_CLIENT sy-vline 
WA_SCTS_TRACK_VMK_STR-OPERATION sy-vline 
WA_SCTS_TRACK_VMK_STR-KEY_ID sy-vline 
WA_SCTS_TRACK_VMK_STR-VERSION sy-vline 
WA_SCTS_TRACK_VMK_STR-STATUS sy-vline 
WA_SCTS_TRACK_VMK_STR-MASTERTYPE sy-vline 
WA_SCTS_TRACK_VMK_STR-MASTERNAME sy-vline 
WA_SCTS_TRACK_VMK_STR-VIEWNAME sy-vline 
WA_SCTS_TRACK_VMK_STR-OBJFUNC sy-vline 
WA_SCTS_TRACK_VMK_STR-TABKEY sy-vline 
WA_SCTS_TRACK_VMK_STR-SORTFLAG sy-vline 
WA_SCTS_TRACK_VMK_STR-FLAG sy-vline 
WA_SCTS_TRACK_VMK_STR-LANG sy-vline 
WA_SCTS_TRACK_VMK_STR-ACTIVITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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