ABAP Select data from SAP table PPED0_STRUCT_COMP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PPED0_STRUCT_COMP 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 PPED0_STRUCT_COMP. 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 PPED0_STRUCT_COMP 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_PPED0_STRUCT_COMP TYPE STANDARD TABLE OF PPED0_STRUCT_COMP,
      WA_PPED0_STRUCT_COMP TYPE PPED0_STRUCT_COMP,
      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: <PPED0_STRUCT_COMP> TYPE PPED0_STRUCT_COMP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PPED0_STRUCT_COMP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PPED0_STRUCT_COMP
  INTO TABLE IT_PPED0_STRUCT_COMP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPED0_STRUCT_COMP
*  INTO TABLE @DATA(IT_PPED0_STRUCT_COMP2).
*--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_PPED0_STRUCT_COMP INDEX 1 INTO DATA(WA_PPED0_STRUCT_COMP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PPED0_STRUCT_COMP ASSIGNING <PPED0_STRUCT_COMP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPED0_STRUCT_COMP>-ICON = 1.
<PPED0_STRUCT_COMP>-STUFE = 1.
<PPED0_STRUCT_COMP>-STUFEPUNKT = 1.
<PPED0_STRUCT_COMP>-OTYPE = 1.
<PPED0_STRUCT_COMP>-PXTYPE = 1.

ENDLOOP.

LOOP AT IT_PPED0_STRUCT_COMP INTO WA_PPED0_STRUCT_COMP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPED0_STRUCT_COMP-PNAME, sy-vline,
  WA_PPED0_STRUCT_COMP-CLASS, sy-vline,
  WA_PPED0_STRUCT_COMP-KLART, sy-vline,
  WA_PPED0_STRUCT_COMP-ALTNUM, sy-vline,
  WA_PPED0_STRUCT_COMP-PVNAME, sy-vline,
  WA_PPED0_STRUCT_COMP-COUNT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPED0_STRUCT_COMP 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_PPED0_STRUCT_COMP 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_PPED0_STRUCT_COMP INTO WA_PPED0_STRUCT_COMP.


*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_PPED0_STRUCT_COMP-ALTNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPED0_STRUCT_COMP-ALTNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPED0_STRUCT_COMP-PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPED0_STRUCT_COMP-PVNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FROM_PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPED0_STRUCT_COMP-FROM_PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPED0_STRUCT_COMP-FROM_PVNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FROM_ALTNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPED0_STRUCT_COMP-FROM_ALTNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPED0_STRUCT_COMP-FROM_ALTNUM.
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_PPED0_STRUCT_COMP_STR, 
ICON TYPE STRING,
STUFE TYPE STRING,
STUFEPUNKT TYPE STRING,
OTYPE TYPE STRING,
PXTYPE TYPE STRING,
PNAME TYPE STRING,
CLASS TYPE STRING,
KLART TYPE STRING,
ALTNUM TYPE STRING,
PVNAME TYPE STRING,
COUNT1 TYPE STRING,
MULTI TYPE STRING,
COUNT2 TYPE STRING,
FROM_OTYPE TYPE STRING,
FROM_PNAME TYPE STRING,
FROM_PVNAME TYPE STRING,
FROM_ALTNUM TYPE STRING,
OBJINDEX TYPE STRING,
GUID TYPE STRING,
FROM_PNGUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPED0_STRUCT_COMP_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_PPED0_STRUCT_COMP_STR-ICON sy-vline 
WA_PPED0_STRUCT_COMP_STR-STUFE sy-vline 
WA_PPED0_STRUCT_COMP_STR-STUFEPUNKT sy-vline 
WA_PPED0_STRUCT_COMP_STR-OTYPE sy-vline 
WA_PPED0_STRUCT_COMP_STR-PXTYPE sy-vline 
WA_PPED0_STRUCT_COMP_STR-PNAME sy-vline 
WA_PPED0_STRUCT_COMP_STR-CLASS sy-vline 
WA_PPED0_STRUCT_COMP_STR-KLART sy-vline 
WA_PPED0_STRUCT_COMP_STR-ALTNUM sy-vline 
WA_PPED0_STRUCT_COMP_STR-PVNAME sy-vline 
WA_PPED0_STRUCT_COMP_STR-COUNT1 sy-vline 
WA_PPED0_STRUCT_COMP_STR-MULTI sy-vline 
WA_PPED0_STRUCT_COMP_STR-COUNT2 sy-vline 
WA_PPED0_STRUCT_COMP_STR-FROM_OTYPE sy-vline 
WA_PPED0_STRUCT_COMP_STR-FROM_PNAME sy-vline 
WA_PPED0_STRUCT_COMP_STR-FROM_PVNAME sy-vline 
WA_PPED0_STRUCT_COMP_STR-FROM_ALTNUM sy-vline 
WA_PPED0_STRUCT_COMP_STR-OBJINDEX sy-vline 
WA_PPED0_STRUCT_COMP_STR-GUID sy-vline 
WA_PPED0_STRUCT_COMP_STR-FROM_PNGUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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