ABAP Select data from SAP table IDFSFLGHTORD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDFSFLGHTORD
*  INTO TABLE @DATA(IT_IDFSFLGHTORD2).
*--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_IDFSFLGHTORD INDEX 1 INTO DATA(WA_IDFSFLGHTORD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDFSFLGHTORD>-MANDT = 1.
<IDFSFLGHTORD>-MAINTENANCEORDER = 1.
<IDFSFLGHTORD>-DFSMAINTFLIGHTORDERSTARTTIME = 1.
<IDFSFLGHTORD>-DFSMAINTFLIGHTORDERSTARTDATE = 1.
<IDFSFLGHTORD>-DFSMAINTFLIGHTORDERENDTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDFSFLGHTORD-DFSMAINTFLIGHTORDERENDDATE, sy-vline,
  WA_IDFSFLGHTORD-DFSMAINTFLGHTORDOBJECTNUMBER, sy-vline,
  WA_IDFSFLGHTORD-DFSMAINTFLIGHTCONFIGURATION, sy-vline,
  WA_IDFSFLGHTORD-DFSMAINTFLIGHTLTSTTAKEOFFTIME, sy-vline,
  WA_IDFSFLGHTORD-DFSMAINTPLNDFLIGHTDURATION, sy-vline,
  WA_IDFSFLGHTORD-DFSMAINTPLNDFLIGHTDURATIONUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDFSFLGHTORD 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_IDFSFLGHTORD 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_IDFSFLGHTORD INTO WA_IDFSFLGHTORD.


*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 ALPHA, internal->external for field MAINTENANCEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDFSFLGHTORD-MAINTENANCEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFSFLGHTORD-MAINTENANCEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DFSMAINTPLNDFLIGHTDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDFSFLGHTORD-DFSMAINTPLNDFLIGHTDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFSFLGHTORD-DFSMAINTPLNDFLIGHTDURATIONUNIT.
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_IDFSFLGHTORD_STR, 
MANDT TYPE STRING,
MAINTENANCEORDER TYPE STRING,
DFSMAINTFLIGHTORDERSTARTTIME TYPE STRING,
DFSMAINTFLIGHTORDERSTARTDATE TYPE STRING,
DFSMAINTFLIGHTORDERENDTIME TYPE STRING,
DFSMAINTFLIGHTORDERENDDATE TYPE STRING,
DFSMAINTFLGHTORDOBJECTNUMBER TYPE STRING,
DFSMAINTFLIGHTCONFIGURATION TYPE STRING,
DFSMAINTFLIGHTLTSTTAKEOFFTIME TYPE STRING,
DFSMAINTPLNDFLIGHTDURATION TYPE STRING,
DFSMAINTPLNDFLIGHTDURATIONUNIT TYPE STRING,
DFSMAINTFLIGHTDEVIATION TYPE STRING,
DFSMAINTFLIGHTDEVIATIONREASON TYPE STRING,
DFSMAINTFLIGHTDESTINATIONDESC TYPE STRING,
DFSMAINTFLIGHTMISSIONID TYPE STRING,
FORCEELEMENTORGUUID TYPE STRING,
DFSOBJECTSEQUENCENUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDFSFLGHTORD_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_IDFSFLGHTORD_STR-MANDT sy-vline 
WA_IDFSFLGHTORD_STR-MAINTENANCEORDER sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTORDERSTARTTIME sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTORDERSTARTDATE sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTORDERENDTIME sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTORDERENDDATE sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLGHTORDOBJECTNUMBER sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTCONFIGURATION sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTLTSTTAKEOFFTIME sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTPLNDFLIGHTDURATION sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTPLNDFLIGHTDURATIONUNIT sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTDEVIATION sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTDEVIATIONREASON sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTDESTINATIONDESC sy-vline 
WA_IDFSFLGHTORD_STR-DFSMAINTFLIGHTMISSIONID sy-vline 
WA_IDFSFLGHTORD_STR-FORCEELEMENTORGUUID sy-vline 
WA_IDFSFLGHTORD_STR-DFSOBJECTSEQUENCENUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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