ABAP Select data from SAP table S_BOOKINGSV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM S_BOOKINGSV
*  INTO TABLE @DATA(IT_S_BOOKINGSV2).
*--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_S_BOOKINGSV INDEX 1 INTO DATA(WA_S_BOOKINGSV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<S_BOOKINGSV>-MANDT = 1.
<S_BOOKINGSV>-CARRIERID = 1.
<S_BOOKINGSV>-CONNECTIONID = 1.
<S_BOOKINGSV>-FLIGHTDATE = 1.
<S_BOOKINGSV>-BOOKID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_S_BOOKINGSV-CUSTOMERID, sy-vline,
  WA_S_BOOKINGSV-CUSTOMERTYPE, sy-vline,
  WA_S_BOOKINGSV-SMOKER, sy-vline,
  WA_S_BOOKINGSV-LUGGAGEWEIGHT, sy-vline,
  WA_S_BOOKINGSV-WEIGHTUNIT, sy-vline,
  WA_S_BOOKINGSV-INVOICEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_S_BOOKINGSV 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_S_BOOKINGSV 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_S_BOOKINGSV INTO WA_S_BOOKINGSV.


*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 WEIGHTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_S_BOOKINGSV-WEIGHTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_S_BOOKINGSV-WEIGHTUNIT.
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_S_BOOKINGSV_STR, 
MANDT TYPE STRING,
CARRIERID TYPE STRING,
CONNECTIONID TYPE STRING,
FLIGHTDATE TYPE STRING,
BOOKID TYPE STRING,
CUSTOMERID TYPE STRING,
CUSTOMERTYPE TYPE STRING,
SMOKER TYPE STRING,
LUGGAGEWEIGHT TYPE STRING,
WEIGHTUNIT TYPE STRING,
INVOICEID TYPE STRING,
CLASS TYPE STRING,
FOREIGNCURRENCYAMOUNT TYPE STRING,
FOREIGNCURRENCYCODE TYPE STRING,
LOCALCURRENCYAMOUNT TYPE STRING,
LOCALCURRENCYCODE TYPE STRING,
ORDERDATE TYPE STRING,
COUNTER TYPE STRING,
AGENCYNUMBER TYPE STRING,
CANCELLED TYPE STRING,
RESERVED TYPE STRING,
PASSNAME TYPE STRING,
PASSFORM TYPE STRING,
PASSBIRTH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_S_BOOKINGSV_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_S_BOOKINGSV_STR-MANDT sy-vline 
WA_S_BOOKINGSV_STR-CARRIERID sy-vline 
WA_S_BOOKINGSV_STR-CONNECTIONID sy-vline 
WA_S_BOOKINGSV_STR-FLIGHTDATE sy-vline 
WA_S_BOOKINGSV_STR-BOOKID sy-vline 
WA_S_BOOKINGSV_STR-CUSTOMERID sy-vline 
WA_S_BOOKINGSV_STR-CUSTOMERTYPE sy-vline 
WA_S_BOOKINGSV_STR-SMOKER sy-vline 
WA_S_BOOKINGSV_STR-LUGGAGEWEIGHT sy-vline 
WA_S_BOOKINGSV_STR-WEIGHTUNIT sy-vline 
WA_S_BOOKINGSV_STR-INVOICEID sy-vline 
WA_S_BOOKINGSV_STR-CLASS sy-vline 
WA_S_BOOKINGSV_STR-FOREIGNCURRENCYAMOUNT sy-vline 
WA_S_BOOKINGSV_STR-FOREIGNCURRENCYCODE sy-vline 
WA_S_BOOKINGSV_STR-LOCALCURRENCYAMOUNT sy-vline 
WA_S_BOOKINGSV_STR-LOCALCURRENCYCODE sy-vline 
WA_S_BOOKINGSV_STR-ORDERDATE sy-vline 
WA_S_BOOKINGSV_STR-COUNTER sy-vline 
WA_S_BOOKINGSV_STR-AGENCYNUMBER sy-vline 
WA_S_BOOKINGSV_STR-CANCELLED sy-vline 
WA_S_BOOKINGSV_STR-RESERVED sy-vline 
WA_S_BOOKINGSV_STR-PASSNAME sy-vline 
WA_S_BOOKINGSV_STR-PASSFORM sy-vline 
WA_S_BOOKINGSV_STR-PASSBIRTH sy-vline      INTO ld_text SEPARATED BY SPACE.

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