ABAP Select data from SAP table /PLMI/S_PPE_CMP_NOD_CREATE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PLMI/S_PPE_CMP_NOD_CREATE 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 /PLMI/S_PPE_CMP_NOD_CREATE. 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 /PLMI/S_PPE_CMP_NOD_CREATE 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_/PLMI/S_PPE_CMP_NOD_CREATE TYPE STANDARD TABLE OF /PLMI/S_PPE_CMP_NOD_CREATE,
      WA_/PLMI/S_PPE_CMP_NOD_CREATE TYPE /PLMI/S_PPE_CMP_NOD_CREATE,
      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: </PLMI/S_PPE_CMP_NOD_CREATE> TYPE /PLMI/S_PPE_CMP_NOD_CREATE.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PLMI/S_PPE_CMP_NOD_CREATE
  INTO TABLE IT_/PLMI/S_PPE_CMP_NOD_CREATE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMI/S_PPE_CMP_NOD_CREATE
*  INTO TABLE @DATA(IT_/PLMI/S_PPE_CMP_NOD_CREATE2).
*--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_/PLMI/S_PPE_CMP_NOD_CREATE INDEX 1 INTO DATA(WA_/PLMI/S_PPE_CMP_NOD_CREATE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PLMI/S_PPE_CMP_NOD_CREATE ASSIGNING </PLMI/S_PPE_CMP_NOD_CREATE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMI/S_PPE_CMP_NOD_CREATE>-NODE_NAME = 1.
</PLMI/S_PPE_CMP_NOD_CREATE>-NAMEID = 1.
</PLMI/S_PPE_CMP_NOD_CREATE>-NAMEID_OBJECT_TYPE = 1.
</PLMI/S_PPE_CMP_NOD_CREATE>-NAMEID_APPLOBJ = 1.
</PLMI/S_PPE_CMP_NOD_CREATE>-CLINT = 1.

ENDLOOP.

LOOP AT IT_/PLMI/S_PPE_CMP_NOD_CREATE INTO WA_/PLMI/S_PPE_CMP_NOD_CREATE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMI/S_PPE_CMP_NOD_CREATE-NODE_TYPE, sy-vline,
  WA_/PLMI/S_PPE_CMP_NOD_CREATE-APPLOBJ_TYPE, sy-vline,
  WA_/PLMI/S_PPE_CMP_NOD_CREATE-TIMESTMP, sy-vline,
  WA_/PLMI/S_PPE_CMP_NOD_CREATE-CREADAT, sy-vline,
  WA_/PLMI/S_PPE_CMP_NOD_CREATE-CREABY, sy-vline,
  WA_/PLMI/S_PPE_CMP_NOD_CREATE-CHNGDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMI/S_PPE_CMP_NOD_CREATE 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_/PLMI/S_PPE_CMP_NOD_CREATE 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_/PLMI/S_PPE_CMP_NOD_CREATE INTO WA_/PLMI/S_PPE_CMP_NOD_CREATE.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMI/S_PPE_CMP_NOD_CREATE-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMI/S_PPE_CMP_NOD_CREATE-LOGSYS.
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_/PLMI/S_PPE_CMP_NOD_CREATE_STR, 
NODE_NAME TYPE STRING,
NAMEID TYPE STRING,
NAMEID_OBJECT_TYPE TYPE STRING,
NAMEID_APPLOBJ TYPE STRING,
CLINT TYPE STRING,
NODE_TYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
TIMESTMP TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
HISTFLG TYPE STRING,
PNTXCNT TYPE STRING,
PVCMAND TYPE STRING,
PVCMULT TYPE STRING,
PVCFREE TYPE STRING,
PVCPRIO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMI/S_PPE_CMP_NOD_CREATE_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_/PLMI/S_PPE_CMP_NOD_CREATE_STR-NODE_NAME sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-NAMEID sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-NAMEID_OBJECT_TYPE sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-NAMEID_APPLOBJ sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-CLINT sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-NODE_TYPE sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-APPLOBJ_TYPE sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-TIMESTMP sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-CREADAT sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-CREABY sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-CHNGDAT sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-CHNGBY sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-LOGSYS sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-HISTFLG sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-PNTXCNT sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-PVCMAND sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-PVCMULT sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-PVCFREE sy-vline 
WA_/PLMI/S_PPE_CMP_NOD_CREATE_STR-PVCPRIO sy-vline      INTO ld_text SEPARATED BY SPACE.

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