ABAP Select data from SAP table PPPCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPPCH
*  INTO TABLE @DATA(IT_PPPCH2).
*--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_PPPCH INDEX 1 INTO DATA(WA_PPPCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPPCH>-ACCES = 1.
<PPPCH>-PHSET = 1.
<PPPCH>-OTEXT = 1.
<PPPCH>-TDEPTH = 1.
<PPPCH>-REFRE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPPCH-CHECK, sy-vline,
  WA_PPPCH-BREAK, sy-vline,
  WA_PPPCH-CFORM, sy-vline,
  WA_PPPCH-SETGE, sy-vline,
  WA_PPPCH-RWTAB, sy-vline,
  WA_PPPCH-SFORM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPPCH 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_PPPCH 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_PPPCH INTO WA_PPPCH.


*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_PPPCH_STR, 
ACCES TYPE STRING,
PHSET TYPE STRING,
OTEXT TYPE STRING,
TDEPTH TYPE STRING,
REFRE TYPE STRING,
CHECK TYPE STRING,
BREAK TYPE STRING,
CFORM TYPE STRING,
SETGE TYPE STRING,
RWTAB TYPE STRING,
SFORM TYPE STRING,
INFTB TYPE STRING,
RECURS TYPE STRING,
SFLAG TYPE STRING,
ONEOBJID TYPE STRING,
KEYDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPPCH_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_PPPCH_STR-ACCES sy-vline 
WA_PPPCH_STR-PHSET sy-vline 
WA_PPPCH_STR-OTEXT sy-vline 
WA_PPPCH_STR-TDEPTH sy-vline 
WA_PPPCH_STR-REFRE sy-vline 
WA_PPPCH_STR-CHECK sy-vline 
WA_PPPCH_STR-BREAK sy-vline 
WA_PPPCH_STR-CFORM sy-vline 
WA_PPPCH_STR-SETGE sy-vline 
WA_PPPCH_STR-RWTAB sy-vline 
WA_PPPCH_STR-SFORM sy-vline 
WA_PPPCH_STR-INFTB sy-vline 
WA_PPPCH_STR-RECURS sy-vline 
WA_PPPCH_STR-SFLAG sy-vline 
WA_PPPCH_STR-ONEOBJID sy-vline 
WA_PPPCH_STR-KEYDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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