ABAP Select data from SAP table MDG_SF_SF_SF_PP_FLIGHT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDG_SF_SF_SF_PP_FLIGHT
*  INTO TABLE @DATA(IT_MDG_SF_SF_SF_PP_FLIGHT2).
*--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_MDG_SF_SF_SF_PP_FLIGHT INDEX 1 INTO DATA(WA_MDG_SF_SF_SF_PP_FLIGHT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDG_SF_SF_SF_PP_FLIGHT>-FLDATE = 1.
<MDG_SF_SF_SF_PP_FLIGHT>-CARR = 1.
<MDG_SF_SF_SF_PP_FLIGHT>-PFLI = 1.
<MDG_SF_SF_SF_PP_FLIGHT>-CURRENCY = 1.
<MDG_SF_SF_SF_PP_FLIGHT>-PAYMENTSU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDG_SF_SF_SF_PP_FLIGHT-PLANETYPE, sy-vline,
  WA_MDG_SF_SF_SF_PP_FLIGHT-PRICE, sy-vline,
  WA_MDG_SF_SF_SF_PP_FLIGHT-SEATSMAX, sy-vline,
  WA_MDG_SF_SF_SF_PP_FLIGHT-SEATSMAXB, sy-vline,
  WA_MDG_SF_SF_SF_PP_FLIGHT-SEATSMAXF, sy-vline,
  WA_MDG_SF_SF_SF_PP_FLIGHT-SEATSOCC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDG_SF_SF_SF_PP_FLIGHT 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_MDG_SF_SF_SF_PP_FLIGHT 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_MDG_SF_SF_SF_PP_FLIGHT INTO WA_MDG_SF_SF_SF_PP_FLIGHT.


*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_MDG_SF_SF_SF_PP_FLIGHT_STR, 
FLDATE TYPE STRING,
CARR TYPE STRING,
PFLI TYPE STRING,
CURRENCY TYPE STRING,
PAYMENTSU TYPE STRING,
PLANETYPE TYPE STRING,
PRICE TYPE STRING,
SEATSMAX TYPE STRING,
SEATSMAXB TYPE STRING,
SEATSMAXF TYPE STRING,
SEATSOCC TYPE STRING,
SEATSOCCB TYPE STRING,
SEATSOCCF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDG_SF_SF_SF_PP_FLIGHT_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_MDG_SF_SF_SF_PP_FLIGHT_STR-FLDATE sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-CARR sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-PFLI sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-CURRENCY sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-PAYMENTSU sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-PLANETYPE sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-PRICE sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-SEATSMAX sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-SEATSMAXB sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-SEATSMAXF sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-SEATSOCC sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-SEATSOCCB sy-vline 
WA_MDG_SF_SF_SF_PP_FLIGHT_STR-SEATSOCCF sy-vline      INTO ld_text SEPARATED BY SPACE.

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