ABAP Select data from SAP table PISPC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PISPC
*  INTO TABLE @DATA(IT_PISPC2).
*--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_PISPC INDEX 1 INTO DATA(WA_PISPC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PISPC>-KBELN = 1.
<PISPC>-VKKAB = 1.
<PISPC>-VKKBI = 1.
<PISPC>-PRSDT = 1.
<PISPC>-MATKL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PISPC-LIFNR, sy-vline,
  WA_PISPC-LTSNR, sy-vline,
  WA_PISPC-AKTNR, sy-vline,
  WA_PISPC-SAISO, sy-vline,
  WA_PISPC-SAISJ, sy-vline,
  WA_PISPC-LIGRU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PISPC 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_PISPC 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_PISPC INTO WA_PISPC.


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

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

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

*Conversion exit GJAHR, internal->external for field SAISJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PISPC-SAISJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PISPC-SAISJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIF2S
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PISPC-LIF2S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PISPC-LIF2S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FRBNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PISPC-FRBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PISPC-FRBNR.
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_PISPC_STR, 
KBELN TYPE STRING,
VKKAB TYPE STRING,
VKKBI TYPE STRING,
PRSDT TYPE STRING,
MATKL TYPE STRING,
LIFNR TYPE STRING,
LTSNR TYPE STRING,
AKTNR TYPE STRING,
SAISO TYPE STRING,
SAISJ TYPE STRING,
LIGRU TYPE STRING,
LIVAR TYPE STRING,
LISKZ TYPE STRING,
NEUKA TYPE STRING,
COMWO TYPE STRING,
TRTYP TYPE STRING,
EKERV TYPE STRING,
VKERV TYPE STRING,
MPROZ TYPE STRING,
AWAER TYPE STRING,
MABSO TYPE STRING,
NOSTA TYPE STRING,
NOVRK TYPE STRING,
NOEKP TYPE STRING,
NOLIF TYPE STRING,
INIAM TYPE STRING,
KLART TYPE STRING,
AUTOK TYPE STRING,
DRUKZ TYPE STRING,
FEHLP TYPE STRING,
BELKZ TYPE STRING,
ARCKZ TYPE STRING,
WSLOG TYPE STRING,
WLOGV TYPE STRING,
LIF2S TYPE STRING,
KABVP TYPE STRING,
FRBNR TYPE STRING,
KAVTL TYPE STRING,
KDFSA TYPE STRING,
FSH_SEASON_YEAR TYPE STRING,
FSH_SEASON TYPE STRING,
FSH_COLLECTION TYPE STRING,
FSH_THEME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PISPC_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_PISPC_STR-KBELN sy-vline 
WA_PISPC_STR-VKKAB sy-vline 
WA_PISPC_STR-VKKBI sy-vline 
WA_PISPC_STR-PRSDT sy-vline 
WA_PISPC_STR-MATKL sy-vline 
WA_PISPC_STR-LIFNR sy-vline 
WA_PISPC_STR-LTSNR sy-vline 
WA_PISPC_STR-AKTNR sy-vline 
WA_PISPC_STR-SAISO sy-vline 
WA_PISPC_STR-SAISJ sy-vline 
WA_PISPC_STR-LIGRU sy-vline 
WA_PISPC_STR-LIVAR sy-vline 
WA_PISPC_STR-LISKZ sy-vline 
WA_PISPC_STR-NEUKA sy-vline 
WA_PISPC_STR-COMWO sy-vline 
WA_PISPC_STR-TRTYP sy-vline 
WA_PISPC_STR-EKERV sy-vline 
WA_PISPC_STR-VKERV sy-vline 
WA_PISPC_STR-MPROZ sy-vline 
WA_PISPC_STR-AWAER sy-vline 
WA_PISPC_STR-MABSO sy-vline 
WA_PISPC_STR-NOSTA sy-vline 
WA_PISPC_STR-NOVRK sy-vline 
WA_PISPC_STR-NOEKP sy-vline 
WA_PISPC_STR-NOLIF sy-vline 
WA_PISPC_STR-INIAM sy-vline 
WA_PISPC_STR-KLART sy-vline 
WA_PISPC_STR-AUTOK sy-vline 
WA_PISPC_STR-DRUKZ sy-vline 
WA_PISPC_STR-FEHLP sy-vline 
WA_PISPC_STR-BELKZ sy-vline 
WA_PISPC_STR-ARCKZ sy-vline 
WA_PISPC_STR-WSLOG sy-vline 
WA_PISPC_STR-WLOGV sy-vline 
WA_PISPC_STR-LIF2S sy-vline 
WA_PISPC_STR-KABVP sy-vline 
WA_PISPC_STR-FRBNR sy-vline 
WA_PISPC_STR-KAVTL sy-vline 
WA_PISPC_STR-KDFSA sy-vline 
WA_PISPC_STR-FSH_SEASON_YEAR sy-vline 
WA_PISPC_STR-FSH_SEASON sy-vline 
WA_PISPC_STR-FSH_COLLECTION sy-vline 
WA_PISPC_STR-FSH_THEME sy-vline      INTO ld_text SEPARATED BY SPACE.

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