ABAP Select data from SAP table SWXTRAREQUEST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SWXTRAREQUEST
*  INTO TABLE @DATA(IT_SWXTRAREQUEST2).
*--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_SWXTRAREQUEST INDEX 1 INTO DATA(WA_SWXTRAREQUEST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SWXTRAREQUEST>-CLIENT = 1.
<SWXTRAREQUEST>-FORMNUMBER = 1.
<SWXTRAREQUEST>-APPROVDATE = 1.
<SWXTRAREQUEST>-APPROVBY = 1.
<SWXTRAREQUEST>-CREATEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SWXTRAREQUEST-CREATEDBY, sy-vline,
  WA_SWXTRAREQUEST-OUTWARDDATE, sy-vline,
  WA_SWXTRAREQUEST-RETURNDATE, sy-vline,
  WA_SWXTRAREQUEST-CITYFROM, sy-vline,
  WA_SWXTRAREQUEST-CITYTO, sy-vline,
  WA_SWXTRAREQUEST-PROCSTATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SWXTRAREQUEST 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_SWXTRAREQUEST 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_SWXTRAREQUEST INTO WA_SWXTRAREQUEST.


*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_SWXTRAREQUEST_STR, 
CLIENT TYPE STRING,
FORMNUMBER TYPE STRING,
APPROVDATE TYPE STRING,
APPROVBY TYPE STRING,
CREATEDATE TYPE STRING,
CREATEDBY TYPE STRING,
OUTWARDDATE TYPE STRING,
RETURNDATE TYPE STRING,
CITYFROM TYPE STRING,
CITYTO TYPE STRING,
PROCSTATE TYPE STRING,
CONNIDOUT TYPE STRING,
CARRIDOUT TYPE STRING,
CONNIDIN TYPE STRING,
CARRIDIN TYPE STRING,
BOOKSTATEOUT TYPE STRING,
BOOKSTATEIN TYPE STRING,
PRICEOUT TYPE STRING,
PRICEIN TYPE STRING,
REQUESTNR TYPE STRING,
CONDITIONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SWXTRAREQUEST_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_SWXTRAREQUEST_STR-CLIENT sy-vline 
WA_SWXTRAREQUEST_STR-FORMNUMBER sy-vline 
WA_SWXTRAREQUEST_STR-APPROVDATE sy-vline 
WA_SWXTRAREQUEST_STR-APPROVBY sy-vline 
WA_SWXTRAREQUEST_STR-CREATEDATE sy-vline 
WA_SWXTRAREQUEST_STR-CREATEDBY sy-vline 
WA_SWXTRAREQUEST_STR-OUTWARDDATE sy-vline 
WA_SWXTRAREQUEST_STR-RETURNDATE sy-vline 
WA_SWXTRAREQUEST_STR-CITYFROM sy-vline 
WA_SWXTRAREQUEST_STR-CITYTO sy-vline 
WA_SWXTRAREQUEST_STR-PROCSTATE sy-vline 
WA_SWXTRAREQUEST_STR-CONNIDOUT sy-vline 
WA_SWXTRAREQUEST_STR-CARRIDOUT sy-vline 
WA_SWXTRAREQUEST_STR-CONNIDIN sy-vline 
WA_SWXTRAREQUEST_STR-CARRIDIN sy-vline 
WA_SWXTRAREQUEST_STR-BOOKSTATEOUT sy-vline 
WA_SWXTRAREQUEST_STR-BOOKSTATEIN sy-vline 
WA_SWXTRAREQUEST_STR-PRICEOUT sy-vline 
WA_SWXTRAREQUEST_STR-PRICEIN sy-vline 
WA_SWXTRAREQUEST_STR-REQUESTNR sy-vline 
WA_SWXTRAREQUEST_STR-CONDITIONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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