ABAP Select data from SAP table KKPH_NODE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKPH_NODE
*  INTO TABLE @DATA(IT_KKPH_NODE2).
*--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_KKPH_NODE INDEX 1 INTO DATA(WA_KKPH_NODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKPH_NODE>-OBART = 1.
<KKPH_NODE>-KSTRG = 1.
<KKPH_NODE>-DATBI = 1.
<KKPH_NODE>-AUFNR = 1.
<KKPH_NODE>-POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKPH_NODE-MATNR, sy-vline,
  WA_KKPH_NODE-WERKS, sy-vline,
  WA_KKPH_NODE-PROCNR, sy-vline,
  WA_KKPH_NODE-VERID, sy-vline,
  WA_KKPH_NODE-PLNNR, sy-vline,
  WA_KKPH_NODE-PLNAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKPH_NODE 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_KKPH_NODE 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_KKPH_NODE INTO WA_KKPH_NODE.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKPH_NODE-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKPH_NODE-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KKPH_NODE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKPH_NODE-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_KKPH_NODE-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKPH_NODE-PSPNR.
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_KKPH_NODE_STR, 
OBART TYPE STRING,
KSTRG TYPE STRING,
DATBI TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
PROCNR TYPE STRING,
VERID TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ARBPL TYPE STRING,
SAUFN TYPE STRING,
PSPNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKPH_NODE_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_KKPH_NODE_STR-OBART sy-vline 
WA_KKPH_NODE_STR-KSTRG sy-vline 
WA_KKPH_NODE_STR-DATBI sy-vline 
WA_KKPH_NODE_STR-AUFNR sy-vline 
WA_KKPH_NODE_STR-POSNR sy-vline 
WA_KKPH_NODE_STR-MATNR sy-vline 
WA_KKPH_NODE_STR-WERKS sy-vline 
WA_KKPH_NODE_STR-PROCNR sy-vline 
WA_KKPH_NODE_STR-VERID sy-vline 
WA_KKPH_NODE_STR-PLNNR sy-vline 
WA_KKPH_NODE_STR-PLNAL sy-vline 
WA_KKPH_NODE_STR-ARBPL sy-vline 
WA_KKPH_NODE_STR-SAUFN sy-vline 
WA_KKPH_NODE_STR-PSPNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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