ABAP Select data from SAP table RCPS_PPV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCPS_PPV
*  INTO TABLE @DATA(IT_RCPS_PPV2).
*--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_RCPS_PPV INDEX 1 INTO DATA(WA_RCPS_PPV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCPS_PPV>-LINEMODE = 1.
<RCPS_PPV>-PPV_ID = 1.
<RCPS_PPV>-CHSTCNT = 1.
<RCPS_PPV>-DEL_FLG = 1.
<RCPS_PPV>-AENNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCPS_PPV-AENNR_ROOT, sy-vline,
  WA_RCPS_PPV-VALFR, sy-vline,
  WA_RCPS_PPV-VALTO, sy-vline,
  WA_RCPS_PPV-POSNR, sy-vline,
  WA_RCPS_PPV-PP_ID, sy-vline,
  WA_RCPS_PPV-CLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCPS_PPV 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_RCPS_PPV 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_RCPS_PPV INTO WA_RCPS_PPV.


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

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

*Conversion exit ALPHA, internal->external for field RMS_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCPS_PPV-RMS_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCPS_PPV-RMS_LOGSYS.
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_RCPS_PPV_STR, 
LINEMODE TYPE STRING,
PPV_ID TYPE STRING,
CHSTCNT TYPE STRING,
DEL_FLG TYPE STRING,
AENNR TYPE STRING,
AENNR_ROOT TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
POSNR TYPE STRING,
PP_ID TYPE STRING,
CLASS TYPE STRING,
TDNAME TYPE STRING,
OBJ_GUID TYPE STRING,
PNTYPE_OBJ TYPE STRING,
ROOT_GUID TYPE STRING,
PNTYPE_ROOT TYPE STRING,
LABEL1 TYPE STRING,
CALC_RULE TYPE STRING,
RMS_CREADAT TYPE STRING,
RMS_CREABY TYPE STRING,
RMS_CHNGDAT TYPE STRING,
RMS_CHNGBY TYPE STRING,
RMS_LOGSYS TYPE STRING,
PP_API_CLA_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCPS_PPV_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_RCPS_PPV_STR-LINEMODE sy-vline 
WA_RCPS_PPV_STR-PPV_ID sy-vline 
WA_RCPS_PPV_STR-CHSTCNT sy-vline 
WA_RCPS_PPV_STR-DEL_FLG sy-vline 
WA_RCPS_PPV_STR-AENNR sy-vline 
WA_RCPS_PPV_STR-AENNR_ROOT sy-vline 
WA_RCPS_PPV_STR-VALFR sy-vline 
WA_RCPS_PPV_STR-VALTO sy-vline 
WA_RCPS_PPV_STR-POSNR sy-vline 
WA_RCPS_PPV_STR-PP_ID sy-vline 
WA_RCPS_PPV_STR-CLASS sy-vline 
WA_RCPS_PPV_STR-TDNAME sy-vline 
WA_RCPS_PPV_STR-OBJ_GUID sy-vline 
WA_RCPS_PPV_STR-PNTYPE_OBJ sy-vline 
WA_RCPS_PPV_STR-ROOT_GUID sy-vline 
WA_RCPS_PPV_STR-PNTYPE_ROOT sy-vline 
WA_RCPS_PPV_STR-LABEL1 sy-vline 
WA_RCPS_PPV_STR-CALC_RULE sy-vline 
WA_RCPS_PPV_STR-RMS_CREADAT sy-vline 
WA_RCPS_PPV_STR-RMS_CREABY sy-vline 
WA_RCPS_PPV_STR-RMS_CHNGDAT sy-vline 
WA_RCPS_PPV_STR-RMS_CHNGBY sy-vline 
WA_RCPS_PPV_STR-RMS_LOGSYS sy-vline 
WA_RCPS_PPV_STR-PP_API_CLA_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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