ABAP Select data from SAP table SPAXX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPAXX
*  INTO TABLE @DATA(IT_SPAXX2).
*--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_SPAXX INDEX 1 INTO DATA(WA_SPAXX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPAXX>-SPA51 = 1.
<SPAXX>-SPA52 = 1.
<SPAXX>-SPA53 = 1.
<SPAXX>-SPA54 = 1.
<SPAXX>-SPA55 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPAXX-SPA56, sy-vline,
  WA_SPAXX-SPA57, sy-vline,
  WA_SPAXX-SPA58, sy-vline,
  WA_SPAXX-SPA59, sy-vline,
  WA_SPAXX-SPA60, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_SPAXX 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_SPAXX 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_SPAXX INTO WA_SPAXX.


*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_SPAXX_STR, 
SPA51 TYPE STRING,
SPA52 TYPE STRING,
SPA53 TYPE STRING,
SPA54 TYPE STRING,
SPA55 TYPE STRING,
SPA56 TYPE STRING,
SPA57 TYPE STRING,
SPA58 TYPE STRING,
SPA59 TYPE STRING,
SPA60 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPAXX_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_SPAXX_STR-SPA51 sy-vline 
WA_SPAXX_STR-SPA52 sy-vline 
WA_SPAXX_STR-SPA53 sy-vline 
WA_SPAXX_STR-SPA54 sy-vline 
WA_SPAXX_STR-SPA55 sy-vline 
WA_SPAXX_STR-SPA56 sy-vline 
WA_SPAXX_STR-SPA57 sy-vline 
WA_SPAXX_STR-SPA58 sy-vline 
WA_SPAXX_STR-SPA59 sy-vline 
WA_SPAXX_STR-SPA60 sy-vline      INTO ld_text SEPARATED BY SPACE.

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