ABAP Select data from SAP table P2IE_PRSI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2IE_PRSI 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 P2IE_PRSI. 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 P2IE_PRSI 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_P2IE_PRSI TYPE STANDARD TABLE OF P2IE_PRSI,
      WA_P2IE_PRSI TYPE P2IE_PRSI,
      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: <P2IE_PRSI> TYPE P2IE_PRSI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2IE_PRSI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2IE_PRSI
  INTO TABLE IT_P2IE_PRSI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2IE_PRSI
*  INTO TABLE @DATA(IT_P2IE_PRSI2).
*--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_P2IE_PRSI INDEX 1 INTO DATA(WA_P2IE_PRSI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2IE_PRSI ASSIGNING <P2IE_PRSI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2IE_PRSI>-MANDT = 1.
<P2IE_PRSI>-DCT_PERNR = 1.
<P2IE_PRSI>-DCT_SEQNR = 1.
<P2IE_PRSI>-BEGDA = 1.
<P2IE_PRSI>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_P2IE_PRSI INTO WA_P2IE_PRSI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2IE_PRSI-DRTXP, sy-vline,
  WA_P2IE_PRSI-DIRYR, sy-vline,
  WA_P2IE_PRSI-PRSIC, sy-vline,
  WA_P2IE_PRSI-PRSIA, sy-vline,
  WA_P2IE_PRSI-EECON, sy-vline,
  WA_P2IE_PRSI-ERCON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2IE_PRSI 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_P2IE_PRSI 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_P2IE_PRSI INTO WA_P2IE_PRSI.


*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 GJAHR, internal->external for field DIRYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_P2IE_PRSI-DIRYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2IE_PRSI-DIRYR.
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_P2IE_PRSI_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
DRTXP TYPE STRING,
DIRYR TYPE STRING,
PRSIC TYPE STRING,
PRSIA TYPE STRING,
EECON TYPE STRING,
ERCON TYPE STRING,
FASLV TYPE STRING,
WEEKS TYPE STRING,
PEXMP TYPE STRING,
WEEKO TYPE STRING,
DIRSI TYPE STRING,
WAERS TYPE STRING,
PSPWC TYPE STRING,
PSPDS TYPE STRING,
PRSPC TYPE STRING,
PRSPA TYPE STRING,
WEEKP TYPE STRING,
PRSIE TYPE STRING,
PRSIR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2IE_PRSI_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_P2IE_PRSI_STR-MANDT sy-vline 
WA_P2IE_PRSI_STR-DCT_PERNR sy-vline 
WA_P2IE_PRSI_STR-DCT_SEQNR sy-vline 
WA_P2IE_PRSI_STR-BEGDA sy-vline 
WA_P2IE_PRSI_STR-ENDDA sy-vline 
WA_P2IE_PRSI_STR-DRTXP sy-vline 
WA_P2IE_PRSI_STR-DIRYR sy-vline 
WA_P2IE_PRSI_STR-PRSIC sy-vline 
WA_P2IE_PRSI_STR-PRSIA sy-vline 
WA_P2IE_PRSI_STR-EECON sy-vline 
WA_P2IE_PRSI_STR-ERCON sy-vline 
WA_P2IE_PRSI_STR-FASLV sy-vline 
WA_P2IE_PRSI_STR-WEEKS sy-vline 
WA_P2IE_PRSI_STR-PEXMP sy-vline 
WA_P2IE_PRSI_STR-WEEKO sy-vline 
WA_P2IE_PRSI_STR-DIRSI sy-vline 
WA_P2IE_PRSI_STR-WAERS sy-vline 
WA_P2IE_PRSI_STR-PSPWC sy-vline 
WA_P2IE_PRSI_STR-PSPDS sy-vline 
WA_P2IE_PRSI_STR-PRSPC sy-vline 
WA_P2IE_PRSI_STR-PRSPA sy-vline 
WA_P2IE_PRSI_STR-WEEKP sy-vline 
WA_P2IE_PRSI_STR-PRSIE sy-vline 
WA_P2IE_PRSI_STR-PRSIR sy-vline      INTO ld_text SEPARATED BY SPACE.

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