ABAP Select data from SAP table PS0909 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0909 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 PS0909. 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 PS0909 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_PS0909 TYPE STANDARD TABLE OF PS0909,
      WA_PS0909 TYPE PS0909,
      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: <PS0909> TYPE PS0909.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0909.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0909
  INTO TABLE IT_PS0909.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0909
*  INTO TABLE @DATA(IT_PS09092).
*--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_PS0909 INDEX 1 INTO DATA(WA_PS09092).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0909 ASSIGNING <PS0909>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0909>-LGART = 1.
<PS0909>-SEQNO = 1.
<PS0909>-OVAMT = 1.
<PS0909>-REAMT = 1.
<PS0909>-FPPER = 1.

ENDLOOP.

LOOP AT IT_PS0909 INTO WA_PS0909.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0909-INPER, sy-vline,
  WA_PS0909-BONDT, sy-vline,
  WA_PS0909-PAYTY, sy-vline,
  WA_PS0909-PAYID, sy-vline,
  WA_PS0909-FXAMT, sy-vline,
  WA_PS0909-PRAMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0909 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_PS0909 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_PS0909 INTO WA_PS0909.


*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_PS0909_STR, 
LGART TYPE STRING,
SEQNO TYPE STRING,
OVAMT TYPE STRING,
REAMT TYPE STRING,
FPPER TYPE STRING,
INPER TYPE STRING,
BONDT TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
FXAMT TYPE STRING,
PRAMT TYPE STRING,
TFRGV TYPE STRING,
ECCON TYPE STRING,
NOTIF TYPE STRING,
DATNO TYPE STRING,
WAERS TYPE STRING,
PMTPY TYPE STRING,
PMAMT TYPE STRING,
STPPY TYPE STRING,
IPEND TYPE STRING,
INPTY TYPE STRING,
INPID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0909_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_PS0909_STR-LGART sy-vline 
WA_PS0909_STR-SEQNO sy-vline 
WA_PS0909_STR-OVAMT sy-vline 
WA_PS0909_STR-REAMT sy-vline 
WA_PS0909_STR-FPPER sy-vline 
WA_PS0909_STR-INPER sy-vline 
WA_PS0909_STR-BONDT sy-vline 
WA_PS0909_STR-PAYTY sy-vline 
WA_PS0909_STR-PAYID sy-vline 
WA_PS0909_STR-FXAMT sy-vline 
WA_PS0909_STR-PRAMT sy-vline 
WA_PS0909_STR-TFRGV sy-vline 
WA_PS0909_STR-ECCON sy-vline 
WA_PS0909_STR-NOTIF sy-vline 
WA_PS0909_STR-DATNO sy-vline 
WA_PS0909_STR-WAERS sy-vline 
WA_PS0909_STR-PMTPY sy-vline 
WA_PS0909_STR-PMAMT sy-vline 
WA_PS0909_STR-STPPY sy-vline 
WA_PS0909_STR-IPEND sy-vline 
WA_PS0909_STR-INPTY sy-vline 
WA_PS0909_STR-INPID sy-vline      INTO ld_text SEPARATED BY SPACE.

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