ABAP Select data from SAP table TSTRAVEL_ITINERARY_READ_OUTP46 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TSTRAVEL_ITINERARY_READ_OUTP46 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 TSTRAVEL_ITINERARY_READ_OUTP46. 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 TSTRAVEL_ITINERARY_READ_OUTP46 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_TSTRAVEL_ITINERARY_READ_OUTP46 TYPE STANDARD TABLE OF TSTRAVEL_ITINERARY_READ_OUTP46,
      WA_TSTRAVEL_ITINERARY_READ_OUTP46 TYPE TSTRAVEL_ITINERARY_READ_OUTP46,
      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: <TSTRAVEL_ITINERARY_READ_OUTP46> TYPE TSTRAVEL_ITINERARY_READ_OUTP46.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TSTRAVEL_ITINERARY_READ_OUTP46.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TSTRAVEL_ITINERARY_READ_OUTP46
  INTO TABLE IT_TSTRAVEL_ITINERARY_READ_OUTP46.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TSTRAVEL_ITINERARY_READ_OUTP46
*  INTO TABLE @DATA(IT_TSTRAVEL_ITINERARY_READ_OUTP462).
*--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_TSTRAVEL_ITINERARY_READ_OUTP46 INDEX 1 INTO DATA(WA_TSTRAVEL_ITINERARY_READ_OUTP462).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TSTRAVEL_ITINERARY_READ_OUTP46 ASSIGNING <TSTRAVEL_ITINERARY_READ_OUTP46>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TSTRAVEL_ITINERARY_READ_OUTP46>-CONTROLLER = 1.
<TSTRAVEL_ITINERARY_READ_OUTP46>-FARE_APPLICATION = 1.
<TSTRAVEL_ITINERARY_READ_OUTP46>-ACCOUNT_VENDOR = 1.
<TSTRAVEL_ITINERARY_READ_OUTP46>-CONTROLLER = 1.
<TSTRAVEL_ITINERARY_READ_OUTP46>-CODE = 1.

ENDLOOP.

LOOP AT IT_TSTRAVEL_ITINERARY_READ_OUTP46 INTO WA_TSTRAVEL_ITINERARY_READ_OUTP46.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TSTRAVEL_ITINERARY_READ_OUTP46-AIRLINE, sy-vline,
  WA_TSTRAVEL_ITINERARY_READ_OUTP46-CONTROLLER, sy-vline,
  WA_TSTRAVEL_ITINERARY_READ_OUTP46-CODE, sy-vline,
  WA_TSTRAVEL_ITINERARY_READ_OUTP46-BASE_FARE, sy-vline,
  WA_TSTRAVEL_ITINERARY_READ_OUTP46-CONTROLLER, sy-vline,
  WA_TSTRAVEL_ITINERARY_READ_OUTP46-AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TSTRAVEL_ITINERARY_READ_OUTP46 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_TSTRAVEL_ITINERARY_READ_OUTP46 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_TSTRAVEL_ITINERARY_READ_OUTP46 INTO WA_TSTRAVEL_ITINERARY_READ_OUTP46.


*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_TSTRAVEL_ITINERARY_READ_OUTP46_STR, 
CONTROLLER TYPE STRING,
FARE_APPLICATION TYPE STRING,
ACCOUNT_VENDOR TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
AIRLINE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
BASE_FARE TYPE STRING,
CONTROLLER TYPE STRING,
AMOUNT TYPE STRING,
PERCENT TYPE STRING,
CURRENCY_CODE TYPE STRING,
TAXES TYPE STRING,
CONTROLLER TYPE STRING,
TAX TYPE STRING,
CONTROLLER TYPE STRING,
TAX_CODE TYPE STRING,
AMOUNT TYPE STRING,
PERCENT TYPE STRING,
CURRENCY_CODE TYPE STRING,
GST TYPE STRING,
CONTROLLER TYPE STRING,
AMOUNT TYPE STRING,
PERCENT TYPE STRING,
CURRENCY_CODE TYPE STRING,
QST TYPE STRING,
CONTROLLER TYPE STRING,
TAX_CODE TYPE STRING,
AMOUNT TYPE STRING,
PERCENT TYPE STRING,
CURRENCY_CODE TYPE STRING,
PAYMENT_FORM TYPE STRING,
CONTROLLER TYPE STRING,
PAYMENT_CARD TYPE STRING,
CONTROLLER TYPE STRING,
CARD_NUMBER TYPE STRING,
CODE TYPE STRING,
COMMISSION TYPE STRING,
CONTROLLER TYPE STRING,
AMOUNT TYPE STRING,
PERCENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TSTRAVEL_ITINERARY_READ_OUTP46_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_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-FARE_APPLICATION sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-ACCOUNT_VENDOR sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-AIRLINE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-BASE_FARE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-AMOUNT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-PERCENT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CURRENCY_CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-TAXES sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-TAX sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-TAX_CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-AMOUNT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-PERCENT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CURRENCY_CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-GST sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-AMOUNT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-PERCENT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CURRENCY_CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-QST sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-TAX_CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-AMOUNT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-PERCENT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CURRENCY_CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-PAYMENT_FORM sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-PAYMENT_CARD sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CARD_NUMBER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CODE sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-COMMISSION sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-CONTROLLER sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-AMOUNT sy-vline 
WA_TSTRAVEL_ITINERARY_READ_OUTP46_STR-PERCENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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