ABAP Select data from SAP table PLATRM_S_PAR3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PLATRM_S_PAR3 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 PLATRM_S_PAR3. 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 PLATRM_S_PAR3 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_PLATRM_S_PAR3 TYPE STANDARD TABLE OF PLATRM_S_PAR3,
      WA_PLATRM_S_PAR3 TYPE PLATRM_S_PAR3,
      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: <PLATRM_S_PAR3> TYPE PLATRM_S_PAR3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PLATRM_S_PAR3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PLATRM_S_PAR3
  INTO TABLE IT_PLATRM_S_PAR3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLATRM_S_PAR3
*  INTO TABLE @DATA(IT_PLATRM_S_PAR32).
*--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_PLATRM_S_PAR3 INDEX 1 INTO DATA(WA_PLATRM_S_PAR32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PLATRM_S_PAR3 ASSIGNING <PLATRM_S_PAR3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLATRM_S_PAR3>-PYLOG = 1.
<PLATRM_S_PAR3>-INTIM = 1.
<PLATRM_S_PAR3>-PFORM = 1.
<PLATRM_S_PAR3>-RSIGN = 1.
<PLATRM_S_PAR3>-RDAYS = 1.

ENDLOOP.

LOOP AT IT_PLATRM_S_PAR3 INTO WA_PLATRM_S_PAR3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLATRM_S_PAR3-REPDT, sy-vline,
  WA_PLATRM_S_PAR3-OCRND, sy-vline,
  WA_PLATRM_S_PAR3-OCRDJ, sy-vline,
  WA_PLATRM_S_PAR3-PDEST, sy-vline,
  WA_PLATRM_S_PAR3-CDEST, sy-vline,
  WA_PLATRM_S_PAR3-OCRFP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PLATRM_S_PAR3 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_PLATRM_S_PAR3 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_PLATRM_S_PAR3 INTO WA_PLATRM_S_PAR3.


*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 SPDEV, internal->external for field PDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_PLATRM_S_PAR3-PDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLATRM_S_PAR3-PDEST.
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_PLATRM_S_PAR3_STR, 
PYLOG TYPE STRING,
INTIM TYPE STRING,
PFORM TYPE STRING,
RSIGN TYPE STRING,
RDAYS TYPE STRING,
REPDT TYPE STRING,
OCRND TYPE STRING,
OCRDJ TYPE STRING,
PDEST TYPE STRING,
CDEST TYPE STRING,
OCRFP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLATRM_S_PAR3_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_PLATRM_S_PAR3_STR-PYLOG sy-vline 
WA_PLATRM_S_PAR3_STR-INTIM sy-vline 
WA_PLATRM_S_PAR3_STR-PFORM sy-vline 
WA_PLATRM_S_PAR3_STR-RSIGN sy-vline 
WA_PLATRM_S_PAR3_STR-RDAYS sy-vline 
WA_PLATRM_S_PAR3_STR-REPDT sy-vline 
WA_PLATRM_S_PAR3_STR-OCRND sy-vline 
WA_PLATRM_S_PAR3_STR-OCRDJ sy-vline 
WA_PLATRM_S_PAR3_STR-PDEST sy-vline 
WA_PLATRM_S_PAR3_STR-CDEST sy-vline 
WA_PLATRM_S_PAR3_STR-OCRFP sy-vline      INTO ld_text SEPARATED BY SPACE.

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