ABAP Select data from SAP table PSO39 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PSO39 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 PSO39. 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 PSO39 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_PSO39 TYPE STANDARD TABLE OF PSO39,
      WA_PSO39 TYPE PSO39,
      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: <PSO39> TYPE PSO39.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PSO39.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PSO39
  INTO TABLE IT_PSO39.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSO39
*  INTO TABLE @DATA(IT_PSO392).
*--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_PSO39 INDEX 1 INTO DATA(WA_PSO392).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PSO39 ASSIGNING <PSO39>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSO39>-PSOIN = 1.
<PSO39>-PSODT = 1.
<PSO39>-PSOMO = 1.
<PSO39>-PSOAC = 1.
<PSO39>-PSOPE = 1.

ENDLOOP.

LOOP AT IT_PSO39 INTO WA_PSO39.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSO39-PSOPA, sy-vline,
  WA_PSO39-PSOOR, sy-vline,
  WA_PSO39-PSOPR, sy-vline,
  WA_PSO39-PSOZS, sy-vline,
  WA_PSO39-PSOJZ, sy-vline,
  WA_PSO39-PSOMZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSO39 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_PSO39 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_PSO39 INTO WA_PSO39.


*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_PSO39_STR, 
PSOIN TYPE STRING,
PSODT TYPE STRING,
PSOMO TYPE STRING,
PSOAC TYPE STRING,
PSOPE TYPE STRING,
PSOPA TYPE STRING,
PSOOR TYPE STRING,
PSOPR TYPE STRING,
PSOZS TYPE STRING,
PSOJZ TYPE STRING,
PSOMZ TYPE STRING,
PSOTZ TYPE STRING,
PSOVM TYPE STRING,
PSORZ TYPE STRING,
PSOKB TYPE STRING,
PSOFS TYPE STRING,
PSOFSTV TYPE STRING,
PSOICONTOOL TYPE STRING,
PSOICON TYPE STRING,
PSODEX TYPE STRING,
PSOTMP TYPE STRING,
PSOREM TYPE STRING,
PSODED TYPE STRING,
PSOPAR TYPE STRING,
PSOSUM TYPE STRING,
PSOSTO TYPE STRING,
PSOPRO TYPE STRING,
PSOROC TYPE STRING,
PSORUC TYPE STRING,
PSOROI TYPE STRING,
PSORUI TYPE STRING,
FMNUMBREQ TYPE STRING,
PSORNF TYPE STRING,
PSORNB TYPE STRING,
PSORNA TYPE STRING,
PSOFCT TYPE STRING,
FMCOMP TYPE STRING,
FMFUPAY TYPE STRING,
FMFOPAY TYPE STRING,
FMFRECURR TYPE STRING,
FMFDUNN TYPE STRING,
FMFDEFER TYPE STRING,
FMERRDOCS TYPE STRING,
INTDATE TYPE STRING,
INTFORM TYPE STRING,
RATETYPE TYPE STRING,
PSORNO TYPE STRING,
PSOKEX TYPE STRING,
PSORD TYPE STRING,
PSORU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSO39_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_PSO39_STR-PSOIN sy-vline 
WA_PSO39_STR-PSODT sy-vline 
WA_PSO39_STR-PSOMO sy-vline 
WA_PSO39_STR-PSOAC sy-vline 
WA_PSO39_STR-PSOPE sy-vline 
WA_PSO39_STR-PSOPA sy-vline 
WA_PSO39_STR-PSOOR sy-vline 
WA_PSO39_STR-PSOPR sy-vline 
WA_PSO39_STR-PSOZS sy-vline 
WA_PSO39_STR-PSOJZ sy-vline 
WA_PSO39_STR-PSOMZ sy-vline 
WA_PSO39_STR-PSOTZ sy-vline 
WA_PSO39_STR-PSOVM sy-vline 
WA_PSO39_STR-PSORZ sy-vline 
WA_PSO39_STR-PSOKB sy-vline 
WA_PSO39_STR-PSOFS sy-vline 
WA_PSO39_STR-PSOFSTV sy-vline 
WA_PSO39_STR-PSOICONTOOL sy-vline 
WA_PSO39_STR-PSOICON sy-vline 
WA_PSO39_STR-PSODEX sy-vline 
WA_PSO39_STR-PSOTMP sy-vline 
WA_PSO39_STR-PSOREM sy-vline 
WA_PSO39_STR-PSODED sy-vline 
WA_PSO39_STR-PSOPAR sy-vline 
WA_PSO39_STR-PSOSUM sy-vline 
WA_PSO39_STR-PSOSTO sy-vline 
WA_PSO39_STR-PSOPRO sy-vline 
WA_PSO39_STR-PSOROC sy-vline 
WA_PSO39_STR-PSORUC sy-vline 
WA_PSO39_STR-PSOROI sy-vline 
WA_PSO39_STR-PSORUI sy-vline 
WA_PSO39_STR-FMNUMBREQ sy-vline 
WA_PSO39_STR-PSORNF sy-vline 
WA_PSO39_STR-PSORNB sy-vline 
WA_PSO39_STR-PSORNA sy-vline 
WA_PSO39_STR-PSOFCT sy-vline 
WA_PSO39_STR-FMCOMP sy-vline 
WA_PSO39_STR-FMFUPAY sy-vline 
WA_PSO39_STR-FMFOPAY sy-vline 
WA_PSO39_STR-FMFRECURR sy-vline 
WA_PSO39_STR-FMFDUNN sy-vline 
WA_PSO39_STR-FMFDEFER sy-vline 
WA_PSO39_STR-FMERRDOCS sy-vline 
WA_PSO39_STR-INTDATE sy-vline 
WA_PSO39_STR-INTFORM sy-vline 
WA_PSO39_STR-RATETYPE sy-vline 
WA_PSO39_STR-PSORNO sy-vline 
WA_PSO39_STR-PSOKEX sy-vline 
WA_PSO39_STR-PSORD sy-vline 
WA_PSO39_STR-PSORU sy-vline      INTO ld_text SEPARATED BY SPACE.

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