ABAP Select data from SAP table ERTPINPPRO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ERTPINPPRO
*  INTO TABLE @DATA(IT_ERTPINPPRO2).
*--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_ERTPINPPRO INDEX 1 INTO DATA(WA_ERTPINPPRO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ERTPINPPRO>-INDIVIDUAL = 1.
<ERTPINPPRO>-RTPCOMP = 1.
<ERTPINPPRO>-RTPCOMPCODE = 1.
<ERTPINPPRO>-SEASON = 1.
<ERTPINPPRO>-DAYTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ERTPINPPRO-TOUPERIOD, sy-vline,
  WA_ERTPINPPRO-PROFILE, sy-vline,
  WA_ERTPINPPRO-PROFROLE, sy-vline,
  WA_ERTPINPPRO-PROFVALCAT, sy-vline,
  WA_ERTPINPPRO-INTSIZEID, sy-vline,
  WA_ERTPINPPRO-MASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ERTPINPPRO 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_ERTPINPPRO 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_ERTPINPPRO INTO WA_ERTPINPPRO.


*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 CUNIT, internal->external for field MASS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERTPINPPRO-MASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERTPINPPRO-MASS.
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_ERTPINPPRO_STR, 
INDIVIDUAL TYPE STRING,
RTPCOMP TYPE STRING,
RTPCOMPCODE TYPE STRING,
SEASON TYPE STRING,
DAYTYPE TYPE STRING,
TOUPERIOD TYPE STRING,
PROFILE TYPE STRING,
PROFROLE TYPE STRING,
PROFVALCAT TYPE STRING,
INTSIZEID TYPE STRING,
MASS TYPE STRING,
CONSTANT_VALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ERTPINPPRO_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_ERTPINPPRO_STR-INDIVIDUAL sy-vline 
WA_ERTPINPPRO_STR-RTPCOMP sy-vline 
WA_ERTPINPPRO_STR-RTPCOMPCODE sy-vline 
WA_ERTPINPPRO_STR-SEASON sy-vline 
WA_ERTPINPPRO_STR-DAYTYPE sy-vline 
WA_ERTPINPPRO_STR-TOUPERIOD sy-vline 
WA_ERTPINPPRO_STR-PROFILE sy-vline 
WA_ERTPINPPRO_STR-PROFROLE sy-vline 
WA_ERTPINPPRO_STR-PROFVALCAT sy-vline 
WA_ERTPINPPRO_STR-INTSIZEID sy-vline 
WA_ERTPINPPRO_STR-MASS sy-vline 
WA_ERTPINPPRO_STR-CONSTANT_VALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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