ABAP Select data from SAP table PNODE_DYNP_AT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PNODE_DYNP_AT
*  INTO TABLE @DATA(IT_PNODE_DYNP_AT2).
*--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_PNODE_DYNP_AT INDEX 1 INTO DATA(WA_PNODE_DYNP_AT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PNODE_DYNP_AT>-MANDT = 1.
<PNODE_DYNP_AT>-MARK = 1.
<PNODE_DYNP_AT>-PNAME = 1.
<PNODE_DYNP_AT>-PNGUID = 1.
<PNODE_DYNP_AT>-PNTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PNODE_DYNP_AT-APPLOBJ_TYPE, sy-vline,
  WA_PNODE_DYNP_AT-CLINT, sy-vline,
  WA_PNODE_DYNP_AT-CLASS, sy-vline,
  WA_PNODE_DYNP_AT-KLART, sy-vline,
  WA_PNODE_DYNP_AT-ALTNUM, sy-vline,
  WA_PNODE_DYNP_AT-AENNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PNODE_DYNP_AT 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_PNODE_DYNP_AT 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_PNODE_DYNP_AT INTO WA_PNODE_DYNP_AT.


*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 ALPHA, internal->external for field ALTNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PNODE_DYNP_AT-ALTNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PNODE_DYNP_AT-ALTNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PNODE_DYNP_AT-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PNODE_DYNP_AT-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PNODE_DYNP_AT-PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PNODE_DYNP_AT-PVNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ECN_READ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PNODE_DYNP_AT-ECN_READ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PNODE_DYNP_AT-ECN_READ.
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_PNODE_DYNP_AT_STR, 
MANDT TYPE STRING,
MARK TYPE STRING,
PNAME TYPE STRING,
PNGUID TYPE STRING,
PNTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
CLINT TYPE STRING,
CLASS TYPE STRING,
KLART TYPE STRING,
ALTNUM TYPE STRING,
AENNR TYPE STRING,
PNTEXT TYPE STRING,
PVTEXT TYPE STRING,
PATEXT TYPE STRING,
PVNAME TYPE STRING,
ECN_READ TYPE STRING,
APPLICATION TYPE STRING,
TXTFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PNODE_DYNP_AT_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_PNODE_DYNP_AT_STR-MANDT sy-vline 
WA_PNODE_DYNP_AT_STR-MARK sy-vline 
WA_PNODE_DYNP_AT_STR-PNAME sy-vline 
WA_PNODE_DYNP_AT_STR-PNGUID sy-vline 
WA_PNODE_DYNP_AT_STR-PNTYPE sy-vline 
WA_PNODE_DYNP_AT_STR-APPLOBJ_TYPE sy-vline 
WA_PNODE_DYNP_AT_STR-CLINT sy-vline 
WA_PNODE_DYNP_AT_STR-CLASS sy-vline 
WA_PNODE_DYNP_AT_STR-KLART sy-vline 
WA_PNODE_DYNP_AT_STR-ALTNUM sy-vline 
WA_PNODE_DYNP_AT_STR-AENNR sy-vline 
WA_PNODE_DYNP_AT_STR-PNTEXT sy-vline 
WA_PNODE_DYNP_AT_STR-PVTEXT sy-vline 
WA_PNODE_DYNP_AT_STR-PATEXT sy-vline 
WA_PNODE_DYNP_AT_STR-PVNAME sy-vline 
WA_PNODE_DYNP_AT_STR-ECN_READ sy-vline 
WA_PNODE_DYNP_AT_STR-APPLICATION sy-vline 
WA_PNODE_DYNP_AT_STR-TXTFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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