ABAP Select data from SAP table PA0904 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA0904 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 PA0904. 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 PA0904 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_PA0904 TYPE STANDARD TABLE OF PA0904,
      WA_PA0904 TYPE PA0904,
      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: <PA0904> TYPE PA0904.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA0904.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA0904
  INTO TABLE IT_PA0904.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA0904
*  INTO TABLE @DATA(IT_PA09042).
*--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_PA0904 INDEX 1 INTO DATA(WA_PA09042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA0904 ASSIGNING <PA0904>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA0904>-MANDT = 1.
<PA0904>-PERNR = 1.
<PA0904>-SUBTY = 1.
<PA0904>-OBJPS = 1.
<PA0904>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA0904 INTO WA_PA0904.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA0904-ENDDA, sy-vline,
  WA_PA0904-BEGDA, sy-vline,
  WA_PA0904-SEQNR, sy-vline,
  WA_PA0904-AEDTM, sy-vline,
  WA_PA0904-UNAME, sy-vline,
  WA_PA0904-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA0904 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_PA0904 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_PA0904 INTO WA_PA0904.


*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_PA0904_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
PFART TYPE STRING,
PFNUM TYPE STRING,
UNBER TYPE STRING,
PFREI TYPE STRING,
PFMER TYPE STRING,
PFNET TYPE STRING,
PFBAR TYPE STRING,
PFREF TYPE STRING,
P850C TYPE STRING,
PHEBK TYPE STRING,
PSOND TYPE STRING,
PSTSV TYPE STRING,
BVBEZ TYPE STRING,
ZFBTR TYPE STRING,
ZGRND TYPE STRING,
ZMEHR TYPE STRING,
ZGRBT TYPE STRING,
ZMEIN TYPE STRING,
ZVERF TYPE STRING,
VART1 TYPE STRING,
VNUM1 TYPE STRING,
VART2 TYPE STRING,
VNUM2 TYPE STRING,
VART3 TYPE STRING,
VNUM3 TYPE STRING,
FELD1 TYPE STRING,
FELD2 TYPE STRING,
FELD3 TYPE STRING,
FELD4 TYPE STRING,
FELD5 TYPE STRING,
FELD6 TYPE STRING,
VOB01 TYPE STRING,
VOB02 TYPE STRING,
VOB03 TYPE STRING,
VOB04 TYPE STRING,
VOB05 TYPE STRING,
VOB06 TYPE STRING,
VOB07 TYPE STRING,
VOB08 TYPE STRING,
VOB09 TYPE STRING,
VOB10 TYPE STRING,
ABW_VBTRG TYPE STRING,
VORRB TYPE STRING,
AOB01 TYPE STRING,
AOB02 TYPE STRING,
AOB03 TYPE STRING,
AOB04 TYPE STRING,
AOB05 TYPE STRING,
AOB06 TYPE STRING,
AOB07 TYPE STRING,
AOB08 TYPE STRING,
AOB09 TYPE STRING,
AOB10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA0904_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_PA0904_STR-MANDT sy-vline 
WA_PA0904_STR-PERNR sy-vline 
WA_PA0904_STR-SUBTY sy-vline 
WA_PA0904_STR-OBJPS sy-vline 
WA_PA0904_STR-SPRPS sy-vline 
WA_PA0904_STR-ENDDA sy-vline 
WA_PA0904_STR-BEGDA sy-vline 
WA_PA0904_STR-SEQNR sy-vline 
WA_PA0904_STR-AEDTM sy-vline 
WA_PA0904_STR-UNAME sy-vline 
WA_PA0904_STR-HISTO sy-vline 
WA_PA0904_STR-ITXEX sy-vline 
WA_PA0904_STR-REFEX sy-vline 
WA_PA0904_STR-ORDEX sy-vline 
WA_PA0904_STR-ITBLD sy-vline 
WA_PA0904_STR-PREAS sy-vline 
WA_PA0904_STR-FLAG1 sy-vline 
WA_PA0904_STR-FLAG2 sy-vline 
WA_PA0904_STR-FLAG3 sy-vline 
WA_PA0904_STR-FLAG4 sy-vline 
WA_PA0904_STR-RESE1 sy-vline 
WA_PA0904_STR-RESE2 sy-vline 
WA_PA0904_STR-GRPVL sy-vline 
WA_PA0904_STR-PFART sy-vline 
WA_PA0904_STR-PFNUM sy-vline 
WA_PA0904_STR-UNBER sy-vline 
WA_PA0904_STR-PFREI sy-vline 
WA_PA0904_STR-PFMER sy-vline 
WA_PA0904_STR-PFNET sy-vline 
WA_PA0904_STR-PFBAR sy-vline 
WA_PA0904_STR-PFREF sy-vline 
WA_PA0904_STR-P850C sy-vline 
WA_PA0904_STR-PHEBK sy-vline 
WA_PA0904_STR-PSOND sy-vline 
WA_PA0904_STR-PSTSV sy-vline 
WA_PA0904_STR-BVBEZ sy-vline 
WA_PA0904_STR-ZFBTR sy-vline 
WA_PA0904_STR-ZGRND sy-vline 
WA_PA0904_STR-ZMEHR sy-vline 
WA_PA0904_STR-ZGRBT sy-vline 
WA_PA0904_STR-ZMEIN sy-vline 
WA_PA0904_STR-ZVERF sy-vline 
WA_PA0904_STR-VART1 sy-vline 
WA_PA0904_STR-VNUM1 sy-vline 
WA_PA0904_STR-VART2 sy-vline 
WA_PA0904_STR-VNUM2 sy-vline 
WA_PA0904_STR-VART3 sy-vline 
WA_PA0904_STR-VNUM3 sy-vline 
WA_PA0904_STR-FELD1 sy-vline 
WA_PA0904_STR-FELD2 sy-vline 
WA_PA0904_STR-FELD3 sy-vline 
WA_PA0904_STR-FELD4 sy-vline 
WA_PA0904_STR-FELD5 sy-vline 
WA_PA0904_STR-FELD6 sy-vline 
WA_PA0904_STR-VOB01 sy-vline 
WA_PA0904_STR-VOB02 sy-vline 
WA_PA0904_STR-VOB03 sy-vline 
WA_PA0904_STR-VOB04 sy-vline 
WA_PA0904_STR-VOB05 sy-vline 
WA_PA0904_STR-VOB06 sy-vline 
WA_PA0904_STR-VOB07 sy-vline 
WA_PA0904_STR-VOB08 sy-vline 
WA_PA0904_STR-VOB09 sy-vline 
WA_PA0904_STR-VOB10 sy-vline 
WA_PA0904_STR-ABW_VBTRG sy-vline 
WA_PA0904_STR-VORRB sy-vline 
WA_PA0904_STR-AOB01 sy-vline 
WA_PA0904_STR-AOB02 sy-vline 
WA_PA0904_STR-AOB03 sy-vline 
WA_PA0904_STR-AOB04 sy-vline 
WA_PA0904_STR-AOB05 sy-vline 
WA_PA0904_STR-AOB06 sy-vline 
WA_PA0904_STR-AOB07 sy-vline 
WA_PA0904_STR-AOB08 sy-vline 
WA_PA0904_STR-AOB09 sy-vline 
WA_PA0904_STR-AOB10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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