ABAP Select data from SAP table EFG_STRN_PWBFLIGHT_BOOKING into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EFG_STRN_PWBFLIGHT_BOOKING
*  INTO TABLE @DATA(IT_EFG_STRN_PWBFLIGHT_BOOKING2).
*--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_EFG_STRN_PWBFLIGHT_BOOKING INDEX 1 INTO DATA(WA_EFG_STRN_PWBFLIGHT_BOOKING2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EFG_STRN_PWBFLIGHT_BOOKING>-WA_BOOKING = 1.
<EFG_STRN_PWBFLIGHT_BOOKING>-MANDT = 1.
<EFG_STRN_PWBFLIGHT_BOOKING>-CARRID = 1.
<EFG_STRN_PWBFLIGHT_BOOKING>-CONNID = 1.
<EFG_STRN_PWBFLIGHT_BOOKING>-FLDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EFG_STRN_PWBFLIGHT_BOOKING-BOOKID, sy-vline,
  WA_EFG_STRN_PWBFLIGHT_BOOKING-CUSTOMID, sy-vline,
  WA_EFG_STRN_PWBFLIGHT_BOOKING-CUSTTYPE, sy-vline,
  WA_EFG_STRN_PWBFLIGHT_BOOKING-SMOKER, sy-vline,
  WA_EFG_STRN_PWBFLIGHT_BOOKING-LUGGWEIGHT, sy-vline,
  WA_EFG_STRN_PWBFLIGHT_BOOKING-WUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EFG_STRN_PWBFLIGHT_BOOKING 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_EFG_STRN_PWBFLIGHT_BOOKING 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_EFG_STRN_PWBFLIGHT_BOOKING INTO WA_EFG_STRN_PWBFLIGHT_BOOKING.


*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 CUNIT, internal->external for field WUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EFG_STRN_PWBFLIGHT_BOOKING-WUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFG_STRN_PWBFLIGHT_BOOKING-WUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SDURA, internal->external for field FLTIME
CALL FUNCTION 'CONVERSION_EXIT_SDURA_OUTPUT'
  EXPORTING
    input =                      WA_EFG_STRN_PWBFLIGHT_BOOKING-FLTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFG_STRN_PWBFLIGHT_BOOKING-FLTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DISTID
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EFG_STRN_PWBFLIGHT_BOOKING-DISTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFG_STRN_PWBFLIGHT_BOOKING-DISTID.
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_EFG_STRN_PWBFLIGHT_BOOKING_STR, 
WA_BOOKING TYPE STRING,
MANDT TYPE STRING,
CARRID TYPE STRING,
CONNID TYPE STRING,
FLDATE TYPE STRING,
BOOKID TYPE STRING,
CUSTOMID TYPE STRING,
CUSTTYPE TYPE STRING,
SMOKER TYPE STRING,
LUGGWEIGHT TYPE STRING,
WUNIT TYPE STRING,
INVOICE TYPE STRING,
CLASS TYPE STRING,
FORCURAM TYPE STRING,
FORCURKEY TYPE STRING,
LOCCURAM TYPE STRING,
LOCCURKEY TYPE STRING,
ORDER_DATE TYPE STRING,
COUNTER TYPE STRING,
AGENCYNUM TYPE STRING,
CANCELLED TYPE STRING,
RESERVED TYPE STRING,
PASSNAME TYPE STRING,
PASSFORM TYPE STRING,
PASSBIRTH TYPE STRING,
WA_FLIGHT TYPE STRING,
MANDT TYPE STRING,
CARRID TYPE STRING,
CONNID TYPE STRING,
COUNTRYFR TYPE STRING,
CITYFROM TYPE STRING,
AIRPFROM TYPE STRING,
COUNTRYTO TYPE STRING,
CITYTO TYPE STRING,
AIRPTO TYPE STRING,
FLTIME TYPE STRING,
DEPTIME TYPE STRING,
ARRTIME TYPE STRING,
DISTANCE TYPE STRING,
DISTID TYPE STRING,
FLTYPE TYPE STRING,
PERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EFG_STRN_PWBFLIGHT_BOOKING_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_EFG_STRN_PWBFLIGHT_BOOKING_STR-WA_BOOKING sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-MANDT sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CARRID sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CONNID sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-FLDATE sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-BOOKID sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CUSTOMID sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CUSTTYPE sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-SMOKER sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-LUGGWEIGHT sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-WUNIT sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-INVOICE sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CLASS sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-FORCURAM sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-FORCURKEY sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-LOCCURAM sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-LOCCURKEY sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-ORDER_DATE sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-COUNTER sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-AGENCYNUM sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CANCELLED sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-RESERVED sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-PASSNAME sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-PASSFORM sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-PASSBIRTH sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-WA_FLIGHT sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-MANDT sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CARRID sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CONNID sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-COUNTRYFR sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CITYFROM sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-AIRPFROM sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-COUNTRYTO sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-CITYTO sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-AIRPTO sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-FLTIME sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-DEPTIME sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-ARRTIME sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-DISTANCE sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-DISTID sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-FLTYPE sy-vline 
WA_EFG_STRN_PWBFLIGHT_BOOKING_STR-PERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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