ABAP Select data from SAP table PPE00 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PPE00 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 PPE00. 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 PPE00 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_PPE00 TYPE STANDARD TABLE OF PPE00,
      WA_PPE00 TYPE PPE00,
      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: <PPE00> TYPE PPE00.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PPE00.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PPE00
  INTO TABLE IT_PPE00.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPE00
*  INTO TABLE @DATA(IT_PPE002).
*--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_PPE00 INDEX 1 INTO DATA(WA_PPE002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PPE00 ASSIGNING <PPE00>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPE00>-COMND = 1.
<PPE00>-COMM1 = 1.
<PPE00>-COMM2 = 1.
<PPE00>-POSI1 = 1.
<PPE00>-POSI2 = 1.

ENDLOOP.

LOOP AT IT_PPE00 INTO WA_PPE00.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPE00-LINNR, sy-vline,
  WA_PPE00-FINDW, sy-vline,
  WA_PPE00-REPLW, sy-vline,
  WA_PPE00-APEND, sy-vline,
  WA_PPE00-ATTNR, sy-vline,
  WA_PPE00-DTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPE00 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_PPE00 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_PPE00 INTO WA_PPE00.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PPE00_STR, 
COMND TYPE STRING,
COMM1 TYPE STRING,
COMM2 TYPE STRING,
POSI1 TYPE STRING,
POSI2 TYPE STRING,
LINNR TYPE STRING,
FINDW TYPE STRING,
REPLW TYPE STRING,
APEND TYPE STRING,
ATTNR TYPE STRING,
DTEXT TYPE STRING,
NAVIG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPE00_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_PPE00_STR-COMND sy-vline 
WA_PPE00_STR-COMM1 sy-vline 
WA_PPE00_STR-COMM2 sy-vline 
WA_PPE00_STR-POSI1 sy-vline 
WA_PPE00_STR-POSI2 sy-vline 
WA_PPE00_STR-LINNR sy-vline 
WA_PPE00_STR-FINDW sy-vline 
WA_PPE00_STR-REPLW sy-vline 
WA_PPE00_STR-APEND sy-vline 
WA_PPE00_STR-ATTNR sy-vline 
WA_PPE00_STR-DTEXT sy-vline 
WA_PPE00_STR-NAVIG sy-vline      INTO ld_text SEPARATED BY SPACE.

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