ABAP Select data from SAP table ISX_PPACC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISX_PPACC
*  INTO TABLE @DATA(IT_ISX_PPACC2).
*--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_ISX_PPACC INDEX 1 INTO DATA(WA_ISX_PPACC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISX_PPACC>-PPACC = 1.
<ISX_PPACC>-PPACC_ID = 1.
<ISX_PPACC>-PARTNER = 1.
<ISX_PPACC>-DESCRIPTION = 1.
<ISX_PPACC>-BUAG_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISX_PPACC-CURRENCY_CODE, sy-vline,
  WA_ISX_PPACC-PRE_CLOSED_DATE, sy-vline,
  WA_ISX_PPACC-CLOSING_DATE, sy-vline,
  WA_ISX_PPACC-EMPTY_LIMIT, sy-vline,
  WA_ISX_PPACC-ALTERNATIVE_PAYER, sy-vline,
  WA_ISX_PPACC-BALANCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISX_PPACC 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_ISX_PPACC 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_ISX_PPACC INTO WA_ISX_PPACC.


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

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

*Conversion exit ALPHA, internal->external for field ALTERNATIVE_PAYER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISX_PPACC-ALTERNATIVE_PAYER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISX_PPACC-ALTERNATIVE_PAYER.
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_ISX_PPACC_STR, 
PPACC TYPE STRING,
PPACC_ID TYPE STRING,
PARTNER TYPE STRING,
DESCRIPTION TYPE STRING,
BUAG_ID TYPE STRING,
CURRENCY_CODE TYPE STRING,
PRE_CLOSED_DATE TYPE STRING,
CLOSING_DATE TYPE STRING,
EMPTY_LIMIT TYPE STRING,
ALTERNATIVE_PAYER TYPE STRING,
BALANCE TYPE STRING,
CURRENT_STATE TYPE STRING,
PAYMENT_BY TYPE STRING,
BANK_DETAILS_ID TYPE STRING,
PAYMENT_CARD_ID TYPE STRING,
PAYMENT_CARD_TYPE TYPE STRING,
PAYMENT_CARD_NUMBER TYPE STRING,
PAYMENT_CARD_CARDHOLDER TYPE STRING,
PAYMENT_CARD_VALID_FROM TYPE STRING,
PAYMENT_CARD_VALID_TO TYPE STRING,
PAYMENT_CARD_GUID TYPE STRING,
ENCRYPTION_TYPE TYPE STRING,
AMOUNT_ALERTS TYPE STRING,
STATE_CHANGE_ALERTS TYPE STRING,
STATE_SCHEDULE_ITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISX_PPACC_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_ISX_PPACC_STR-PPACC sy-vline 
WA_ISX_PPACC_STR-PPACC_ID sy-vline 
WA_ISX_PPACC_STR-PARTNER sy-vline 
WA_ISX_PPACC_STR-DESCRIPTION sy-vline 
WA_ISX_PPACC_STR-BUAG_ID sy-vline 
WA_ISX_PPACC_STR-CURRENCY_CODE sy-vline 
WA_ISX_PPACC_STR-PRE_CLOSED_DATE sy-vline 
WA_ISX_PPACC_STR-CLOSING_DATE sy-vline 
WA_ISX_PPACC_STR-EMPTY_LIMIT sy-vline 
WA_ISX_PPACC_STR-ALTERNATIVE_PAYER sy-vline 
WA_ISX_PPACC_STR-BALANCE sy-vline 
WA_ISX_PPACC_STR-CURRENT_STATE sy-vline 
WA_ISX_PPACC_STR-PAYMENT_BY sy-vline 
WA_ISX_PPACC_STR-BANK_DETAILS_ID sy-vline 
WA_ISX_PPACC_STR-PAYMENT_CARD_ID sy-vline 
WA_ISX_PPACC_STR-PAYMENT_CARD_TYPE sy-vline 
WA_ISX_PPACC_STR-PAYMENT_CARD_NUMBER sy-vline 
WA_ISX_PPACC_STR-PAYMENT_CARD_CARDHOLDER sy-vline 
WA_ISX_PPACC_STR-PAYMENT_CARD_VALID_FROM sy-vline 
WA_ISX_PPACC_STR-PAYMENT_CARD_VALID_TO sy-vline 
WA_ISX_PPACC_STR-PAYMENT_CARD_GUID sy-vline 
WA_ISX_PPACC_STR-ENCRYPTION_TYPE sy-vline 
WA_ISX_PPACC_STR-AMOUNT_ALERTS sy-vline 
WA_ISX_PPACC_STR-STATE_CHANGE_ALERTS sy-vline 
WA_ISX_PPACC_STR-STATE_SCHEDULE_ITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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