ABAP Select data from SAP table BRF_FLIGHT_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BRF_FLIGHT_INFO
*  INTO TABLE @DATA(IT_BRF_FLIGHT_INFO2).
*--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_BRF_FLIGHT_INFO INDEX 1 INTO DATA(WA_BRF_FLIGHT_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BRF_FLIGHT_INFO>-CARRID = 1.
<BRF_FLIGHT_INFO>-CARRNAME = 1.
<BRF_FLIGHT_INFO>-CONNID = 1.
<BRF_FLIGHT_INFO>-FLDATE = 1.
<BRF_FLIGHT_INFO>-DEPTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BRF_FLIGHT_INFO-ARRTIME, sy-vline,
  WA_BRF_FLIGHT_INFO-PRICE, sy-vline,
  WA_BRF_FLIGHT_INFO-CURRENCY, sy-vline,
  WA_BRF_FLIGHT_INFO-COUNTRYFR, sy-vline,
  WA_BRF_FLIGHT_INFO-CITYFROM, sy-vline,
  WA_BRF_FLIGHT_INFO-AIRPFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BRF_FLIGHT_INFO 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_BRF_FLIGHT_INFO 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_BRF_FLIGHT_INFO INTO WA_BRF_FLIGHT_INFO.


*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_BRF_FLIGHT_INFO_STR, 
CARRID TYPE STRING,
CARRNAME TYPE STRING,
CONNID TYPE STRING,
FLDATE TYPE STRING,
DEPTIME TYPE STRING,
ARRTIME TYPE STRING,
PRICE TYPE STRING,
CURRENCY TYPE STRING,
COUNTRYFR TYPE STRING,
CITYFROM TYPE STRING,
AIRPFROM TYPE STRING,
AIRPFROM_NAME TYPE STRING,
COUNTRYTO TYPE STRING,
CITYTO TYPE STRING,
AIRPTO TYPE STRING,
AIRPTO_NAME TYPE STRING,
SEATSMAX TYPE STRING,
SEATSOCC TYPE STRING,
SEATSMAX_B TYPE STRING,
SEATSOCC_B TYPE STRING,
SEATSMAX_F TYPE STRING,
SEATSOCC_F TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BRF_FLIGHT_INFO_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_BRF_FLIGHT_INFO_STR-CARRID sy-vline 
WA_BRF_FLIGHT_INFO_STR-CARRNAME sy-vline 
WA_BRF_FLIGHT_INFO_STR-CONNID sy-vline 
WA_BRF_FLIGHT_INFO_STR-FLDATE sy-vline 
WA_BRF_FLIGHT_INFO_STR-DEPTIME sy-vline 
WA_BRF_FLIGHT_INFO_STR-ARRTIME sy-vline 
WA_BRF_FLIGHT_INFO_STR-PRICE sy-vline 
WA_BRF_FLIGHT_INFO_STR-CURRENCY sy-vline 
WA_BRF_FLIGHT_INFO_STR-COUNTRYFR sy-vline 
WA_BRF_FLIGHT_INFO_STR-CITYFROM sy-vline 
WA_BRF_FLIGHT_INFO_STR-AIRPFROM sy-vline 
WA_BRF_FLIGHT_INFO_STR-AIRPFROM_NAME sy-vline 
WA_BRF_FLIGHT_INFO_STR-COUNTRYTO sy-vline 
WA_BRF_FLIGHT_INFO_STR-CITYTO sy-vline 
WA_BRF_FLIGHT_INFO_STR-AIRPTO sy-vline 
WA_BRF_FLIGHT_INFO_STR-AIRPTO_NAME sy-vline 
WA_BRF_FLIGHT_INFO_STR-SEATSMAX sy-vline 
WA_BRF_FLIGHT_INFO_STR-SEATSOCC sy-vline 
WA_BRF_FLIGHT_INFO_STR-SEATSMAX_B sy-vline 
WA_BRF_FLIGHT_INFO_STR-SEATSOCC_B sy-vline 
WA_BRF_FLIGHT_INFO_STR-SEATSMAX_F sy-vline 
WA_BRF_FLIGHT_INFO_STR-SEATSOCC_F sy-vline      INTO ld_text SEPARATED BY SPACE.

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