ABAP Select data from SAP table SCOL_FLIGHT_BOOKING_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCOL_FLIGHT_BOOKING_LIST
*  INTO TABLE @DATA(IT_SCOL_FLIGHT_BOOKING_LIST2).
*--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_SCOL_FLIGHT_BOOKING_LIST INDEX 1 INTO DATA(WA_SCOL_FLIGHT_BOOKING_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCOL_FLIGHT_BOOKING_LIST>-CARRID = 1.
<SCOL_FLIGHT_BOOKING_LIST>-CONNID = 1.
<SCOL_FLIGHT_BOOKING_LIST>-FLDATE = 1.
<SCOL_FLIGHT_BOOKING_LIST>-SCOL_BOOKID = 1.
<SCOL_FLIGHT_BOOKING_LIST>-SMOKER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCOL_FLIGHT_BOOKING_LIST-CLASS, sy-vline,
  WA_SCOL_FLIGHT_BOOKING_LIST-RESERVED, sy-vline,
  WA_SCOL_FLIGHT_BOOKING_LIST-PASSNAME, sy-vline,
  WA_SCOL_FLIGHT_BOOKING_LIST-PASSFORM, sy-vline,
  WA_SCOL_FLIGHT_BOOKING_LIST-PASSBIRTH, sy-vline,
  WA_SCOL_FLIGHT_BOOKING_LIST-CUSTOMID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCOL_FLIGHT_BOOKING_LIST 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_SCOL_FLIGHT_BOOKING_LIST 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_SCOL_FLIGHT_BOOKING_LIST INTO WA_SCOL_FLIGHT_BOOKING_LIST.


*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_SCOL_FLIGHT_BOOKING_LIST_STR, 
CARRID TYPE STRING,
CONNID TYPE STRING,
FLDATE TYPE STRING,
SCOL_BOOKID TYPE STRING,
SMOKER TYPE STRING,
CLASS TYPE STRING,
RESERVED TYPE STRING,
PASSNAME TYPE STRING,
PASSFORM TYPE STRING,
PASSBIRTH TYPE STRING,
CUSTOMID TYPE STRING,
COUNTER TYPE STRING,
AGENCYNUM TYPE STRING,
BOOKID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCOL_FLIGHT_BOOKING_LIST_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_SCOL_FLIGHT_BOOKING_LIST_STR-CARRID sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-CONNID sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-FLDATE sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-SCOL_BOOKID sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-SMOKER sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-CLASS sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-RESERVED sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-PASSNAME sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-PASSFORM sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-PASSBIRTH sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-CUSTOMID sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-COUNTER sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-AGENCYNUM sy-vline 
WA_SCOL_FLIGHT_BOOKING_LIST_STR-BOOKID sy-vline      INTO ld_text SEPARATED BY SPACE.

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