ABAP Select data from SAP table FTPS_WEB_TRAIN_SERVICE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FTPS_WEB_TRAIN_SERVICE
*  INTO TABLE @DATA(IT_FTPS_WEB_TRAIN_SERVICE2).
*--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_FTPS_WEB_TRAIN_SERVICE INDEX 1 INTO DATA(WA_FTPS_WEB_TRAIN_SERVICE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FTPS_WEB_TRAIN_SERVICE>-TRAIN_RES_SYSTEM_T = 1.
<FTPS_WEB_TRAIN_SERVICE>-PROVIDER_T = 1.
<FTPS_WEB_TRAIN_SERVICE>-TRAIN_NR_T = 1.
<FTPS_WEB_TRAIN_SERVICE>-TRAIN_HEADER_TEXT_T = 1.
<FTPS_WEB_TRAIN_SERVICE>-PRICE_T = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FTPS_WEB_TRAIN_SERVICE-PRICE_CURR_T, sy-vline,
  WA_FTPS_WEB_TRAIN_SERVICE-CLASS_TEXT_T, sy-vline,
  WA_FTPS_WEB_TRAIN_SERVICE-REBATE_TEXT_T, sy-vline,
  WA_FTPS_WEB_TRAIN_SERVICE-BAHNTIX_INFO_T, sy-vline,
  WA_FTPS_WEB_TRAIN_SERVICE-ORDER_NR_T, sy-vline,
  WA_FTPS_WEB_TRAIN_SERVICE-ORDER_PRICE_T, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FTPS_WEB_TRAIN_SERVICE 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_FTPS_WEB_TRAIN_SERVICE 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_FTPS_WEB_TRAIN_SERVICE INTO WA_FTPS_WEB_TRAIN_SERVICE.


*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_FTPS_WEB_TRAIN_SERVICE_STR, 
TRAIN_RES_SYSTEM_T TYPE STRING,
PROVIDER_T TYPE STRING,
TRAIN_NR_T TYPE STRING,
TRAIN_HEADER_TEXT_T TYPE STRING,
PRICE_T TYPE STRING,
PRICE_CURR_T TYPE STRING,
CLASS_TEXT_T TYPE STRING,
REBATE_TEXT_T TYPE STRING,
BAHNTIX_INFO_T TYPE STRING,
ORDER_NR_T TYPE STRING,
ORDER_PRICE_T TYPE STRING,
ORDER_PRICE_CURR_T TYPE STRING,
TICKET_1_INFO_T TYPE STRING,
TICKET_2_INFO_T TYPE STRING,
DATE_DEP_T TYPE STRING,
TIME_DEP_T TYPE STRING,
DAY_DEP_T TYPE STRING,
LOC_DEP_T TYPE STRING,
GATE_DEP_T TYPE STRING,
TRAIN_DEP_TEXT_T TYPE STRING,
DATE_ARR_T TYPE STRING,
TIME_ARR_T TYPE STRING,
DAY_ARR_T TYPE STRING,
LOC_ARR_T TYPE STRING,
GATE_ARR_T TYPE STRING,
TRAIN_ARR_TEXT_T TYPE STRING,
COACH_NR TYPE STRING,
SEAT_NR TYPE STRING,
SEAT_PRICE TYPE STRING,
SEAT_PRICE_CURR TYPE STRING,
RES_INFO_TEXT TYPE STRING,
SEAT_PRICE_TEXT TYPE STRING,
SUPPLEMENT TYPE STRING,
SUPPLEMENT_CURR TYPE STRING,
PROVIDER_TEXT TYPE STRING,
BASE_FARE_TEXT TYPE STRING,
TOTAL_FARE_TEXT TYPE STRING,
TAXES_FARE_TEXT TYPE STRING,
LOC_DEP_NAME TYPE STRING,
LOC_ARR_NAME TYPE STRING,
BASE_FARE TYPE STRING,
BASE_CURR TYPE STRING,
TOTAL_FARE TYPE STRING,
TOTAL_CURR TYPE STRING,
TAXES TYPE STRING,
TAXES_CURR TYPE STRING,
LOWER_FARE TYPE STRING,
LOWER_CURR TYPE STRING,
TICKET_LAST_DATE TYPE STRING,
CONNECTION_TAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FTPS_WEB_TRAIN_SERVICE_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_FTPS_WEB_TRAIN_SERVICE_STR-TRAIN_RES_SYSTEM_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-PROVIDER_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TRAIN_NR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TRAIN_HEADER_TEXT_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-PRICE_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-PRICE_CURR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-CLASS_TEXT_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-REBATE_TEXT_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-BAHNTIX_INFO_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-ORDER_NR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-ORDER_PRICE_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-ORDER_PRICE_CURR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TICKET_1_INFO_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TICKET_2_INFO_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-DATE_DEP_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TIME_DEP_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-DAY_DEP_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-LOC_DEP_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-GATE_DEP_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TRAIN_DEP_TEXT_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-DATE_ARR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TIME_ARR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-DAY_ARR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-LOC_ARR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-GATE_ARR_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TRAIN_ARR_TEXT_T sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-COACH_NR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-SEAT_NR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-SEAT_PRICE sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-SEAT_PRICE_CURR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-RES_INFO_TEXT sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-SEAT_PRICE_TEXT sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-SUPPLEMENT sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-SUPPLEMENT_CURR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-PROVIDER_TEXT sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-BASE_FARE_TEXT sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TOTAL_FARE_TEXT sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TAXES_FARE_TEXT sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-LOC_DEP_NAME sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-LOC_ARR_NAME sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-BASE_FARE sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-BASE_CURR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TOTAL_FARE sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TOTAL_CURR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TAXES sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TAXES_CURR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-LOWER_FARE sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-LOWER_CURR sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-TICKET_LAST_DATE sy-vline 
WA_FTPS_WEB_TRAIN_SERVICE_STR-CONNECTION_TAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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