ABAP Select data from SAP table PS0343 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0343 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 PS0343. 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 PS0343 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_PS0343 TYPE STANDARD TABLE OF PS0343,
      WA_PS0343 TYPE PS0343,
      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: <PS0343> TYPE PS0343.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0343.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0343
  INTO TABLE IT_PS0343.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0343
*  INTO TABLE @DATA(IT_PS03432).
*--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_PS0343 INDEX 1 INTO DATA(WA_PS03432).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0343 ASSIGNING <PS0343>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0343>-GUMON = 1.
<PS0343>-GUMOU = 1.
<PS0343>-CABAS = 1.
<PS0343>-CONUM = 1.
<PS0343>-EPEDA = 1.

ENDLOOP.

LOOP AT IT_PS0343 INTO WA_PS0343.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0343-PRSEY, sy-vline,
  WA_PS0343-PRSEM, sy-vline,
  WA_PS0343-PRSED, sy-vline,
  WA_PS0343-PRONP, sy-vline,
  WA_PS0343-NOMAW, sy-vline,
  WA_PS0343-FINPY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0343 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_PS0343 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_PS0343 INTO WA_PS0343.


*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_PS0343_STR, 
GUMON TYPE STRING,
GUMOU TYPE STRING,
CABAS TYPE STRING,
CONUM TYPE STRING,
EPEDA TYPE STRING,
PRSEY TYPE STRING,
PRSEM TYPE STRING,
PRSED TYPE STRING,
PRONP TYPE STRING,
NOMAW TYPE STRING,
FINPY TYPE STRING,
INELG TYPE STRING,
PWDST TYPE STRING,
PERPD TYPE STRING,
PERCW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0343_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_PS0343_STR-GUMON sy-vline 
WA_PS0343_STR-GUMOU sy-vline 
WA_PS0343_STR-CABAS sy-vline 
WA_PS0343_STR-CONUM sy-vline 
WA_PS0343_STR-EPEDA sy-vline 
WA_PS0343_STR-PRSEY sy-vline 
WA_PS0343_STR-PRSEM sy-vline 
WA_PS0343_STR-PRSED sy-vline 
WA_PS0343_STR-PRONP sy-vline 
WA_PS0343_STR-NOMAW sy-vline 
WA_PS0343_STR-FINPY sy-vline 
WA_PS0343_STR-INELG sy-vline 
WA_PS0343_STR-PWDST sy-vline 
WA_PS0343_STR-PERPD sy-vline 
WA_PS0343_STR-PERCW sy-vline      INTO ld_text SEPARATED BY SPACE.

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