ABAP Select data from SAP table P08_MSAX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P08_MSAX 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 P08_MSAX. 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 P08_MSAX 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_P08_MSAX TYPE STANDARD TABLE OF P08_MSAX,
      WA_P08_MSAX TYPE P08_MSAX,
      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: <P08_MSAX> TYPE P08_MSAX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P08_MSAX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P08_MSAX
  INTO TABLE IT_P08_MSAX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P08_MSAX
*  INTO TABLE @DATA(IT_P08_MSAX2).
*--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_P08_MSAX INDEX 1 INTO DATA(WA_P08_MSAX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P08_MSAX ASSIGNING <P08_MSAX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P08_MSAX>-SXPTY = 1.
<P08_MSAX>-DATUM = 1.
<P08_MSAX>-CFCUR = 1.
<P08_MSAX>-CFPRV = 1.
<P08_MSAX>-BFCUR = 1.

ENDLOOP.

LOOP AT IT_P08_MSAX INTO WA_P08_MSAX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P08_MSAX-BFPRV, sy-vline,
  WA_P08_MSAX-BFTYP, sy-vline,
  WA_P08_MSAX-BFYTD, sy-vline,
  WA_P08_MSAX-SSPP, sy-vline,
  WA_P08_MSAX-C1ZNR, sy-vline,
  WA_P08_MSAX-BFYR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P08_MSAX 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_P08_MSAX 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_P08_MSAX INTO WA_P08_MSAX.


*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 GJAHR, internal->external for field BFYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_P08_MSAX-BFYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P08_MSAX-BFYR.
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_P08_MSAX_STR, 
SXPTY TYPE STRING,
DATUM TYPE STRING,
CFCUR TYPE STRING,
CFPRV TYPE STRING,
BFCUR TYPE STRING,
BFPRV TYPE STRING,
BFTYP TYPE STRING,
BFYTD TYPE STRING,
SSPP TYPE STRING,
C1ZNR TYPE STRING,
BFYR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P08_MSAX_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_P08_MSAX_STR-SXPTY sy-vline 
WA_P08_MSAX_STR-DATUM sy-vline 
WA_P08_MSAX_STR-CFCUR sy-vline 
WA_P08_MSAX_STR-CFPRV sy-vline 
WA_P08_MSAX_STR-BFCUR sy-vline 
WA_P08_MSAX_STR-BFPRV sy-vline 
WA_P08_MSAX_STR-BFTYP sy-vline 
WA_P08_MSAX_STR-BFYTD sy-vline 
WA_P08_MSAX_STR-SSPP sy-vline 
WA_P08_MSAX_STR-C1ZNR sy-vline 
WA_P08_MSAX_STR-BFYR sy-vline      INTO ld_text SEPARATED BY SPACE.

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