ABAP Select data from SAP table PYD_S_PTMD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PYD_S_PTMD
*  INTO TABLE @DATA(IT_PYD_S_PTMD2).
*--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_PYD_S_PTMD INDEX 1 INTO DATA(WA_PYD_S_PTMD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PYD_S_PTMD>-PAR_TYPE = 1.
<PYD_S_PTMD>-EDM_CORE_TYPE = 1.
<PYD_S_PTMD>-IS_USER_VARIANT_ALLOWED = 1.
<PYD_S_PTMD>-ALLOWED_KIND = 1.
<PYD_S_PTMD>-PRECI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PYD_S_PTMD-SCALE, sy-vline,
  WA_PYD_S_PTMD-MAX_LENGTH, sy-vline,
  WA_PYD_S_PTMD-IS_AMOUNT, sy-vline,
  WA_PYD_S_PTMD-IS_QUANTITY, sy-vline,
  WA_PYD_S_PTMD-FIXED_CURRENCY, sy-vline,
  WA_PYD_S_PTMD-FIXED_UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PYD_S_PTMD 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_PYD_S_PTMD 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_PYD_S_PTMD INTO WA_PYD_S_PTMD.


*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 CUNIT, internal->external for field FIXED_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PYD_S_PTMD-FIXED_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PYD_S_PTMD-FIXED_UNIT.
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_PYD_S_PTMD_STR, 
PAR_TYPE TYPE STRING,
EDM_CORE_TYPE TYPE STRING,
IS_USER_VARIANT_ALLOWED TYPE STRING,
ALLOWED_KIND TYPE STRING,
PRECI TYPE STRING,
SCALE TYPE STRING,
MAX_LENGTH TYPE STRING,
IS_AMOUNT TYPE STRING,
IS_QUANTITY TYPE STRING,
FIXED_CURRENCY TYPE STRING,
FIXED_UNIT TYPE STRING,
IS_TIME_SEL_PAR_TYPE TYPE STRING,
ROLLNAME TYPE STRING,
DEP_ROLLNAME TYPE STRING,
IS_ALLOWED_AS_INPUT TYPE STRING,
IS_ALLOWED_AS_RESULT TYPE STRING,
MOLGA TYPE STRING,
NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PYD_S_PTMD_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_PYD_S_PTMD_STR-PAR_TYPE sy-vline 
WA_PYD_S_PTMD_STR-EDM_CORE_TYPE sy-vline 
WA_PYD_S_PTMD_STR-IS_USER_VARIANT_ALLOWED sy-vline 
WA_PYD_S_PTMD_STR-ALLOWED_KIND sy-vline 
WA_PYD_S_PTMD_STR-PRECI sy-vline 
WA_PYD_S_PTMD_STR-SCALE sy-vline 
WA_PYD_S_PTMD_STR-MAX_LENGTH sy-vline 
WA_PYD_S_PTMD_STR-IS_AMOUNT sy-vline 
WA_PYD_S_PTMD_STR-IS_QUANTITY sy-vline 
WA_PYD_S_PTMD_STR-FIXED_CURRENCY sy-vline 
WA_PYD_S_PTMD_STR-FIXED_UNIT sy-vline 
WA_PYD_S_PTMD_STR-IS_TIME_SEL_PAR_TYPE sy-vline 
WA_PYD_S_PTMD_STR-ROLLNAME sy-vline 
WA_PYD_S_PTMD_STR-DEP_ROLLNAME sy-vline 
WA_PYD_S_PTMD_STR-IS_ALLOWED_AS_INPUT sy-vline 
WA_PYD_S_PTMD_STR-IS_ALLOWED_AS_RESULT sy-vline 
WA_PYD_S_PTMD_STR-MOLGA sy-vline 
WA_PYD_S_PTMD_STR-NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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