ABAP Select data from SAP table FMCAS_MC_PAYMENT_ON_ACCOUNT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCAS_MC_PAYMENT_ON_ACCOUNT
*  INTO TABLE @DATA(IT_FMCAS_MC_PAYMENT_ON_ACCOUNT2).
*--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_FMCAS_MC_PAYMENT_ON_ACCOUNT INDEX 1 INTO DATA(WA_FMCAS_MC_PAYMENT_ON_ACCOUNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCAS_MC_PAYMENT_ON_ACCOUNT>-BANK_ID = 1.
<FMCAS_MC_PAYMENT_ON_ACCOUNT>-BUSINESS_PARTNER = 1.
<FMCAS_MC_PAYMENT_ON_ACCOUNT>-CONTRACT_ACCOUNT = 1.
<FMCAS_MC_PAYMENT_ON_ACCOUNT>-PERIOD = 1.
<FMCAS_MC_PAYMENT_ON_ACCOUNT>-CONTRACT_OBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-FORM_BUNDLE, sy-vline,
  WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-REVENUE_TYPE, sy-vline,
  WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-AMOUNT, sy-vline,
  WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-CURRENCY, sy-vline,
  WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-EFFECTIVE_DATE, sy-vline,
  WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-PAYMENT_CARD_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCAS_MC_PAYMENT_ON_ACCOUNT 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_FMCAS_MC_PAYMENT_ON_ACCOUNT 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_FMCAS_MC_PAYMENT_ON_ACCOUNT INTO WA_FMCAS_MC_PAYMENT_ON_ACCOUNT.


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

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

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

*Conversion exit ALPHA, internal->external for field DOCUMENT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-DOCUMENT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCAS_MC_PAYMENT_ON_ACCOUNT-DOCUMENT_ID.
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_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR, 
BANK_ID TYPE STRING,
BUSINESS_PARTNER TYPE STRING,
CONTRACT_ACCOUNT TYPE STRING,
PERIOD TYPE STRING,
CONTRACT_OBJECT TYPE STRING,
FORM_BUNDLE TYPE STRING,
REVENUE_TYPE TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
EFFECTIVE_DATE TYPE STRING,
PAYMENT_CARD_ID TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
CARD_HOLDER TYPE STRING,
CARD_NUMBER TYPE STRING,
PAYMENT_CARD_TYPE_ID TYPE STRING,
CVC TYPE STRING,
DOCUMENT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_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_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-BANK_ID sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-BUSINESS_PARTNER sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-CONTRACT_ACCOUNT sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-PERIOD sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-CONTRACT_OBJECT sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-FORM_BUNDLE sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-REVENUE_TYPE sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-AMOUNT sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-CURRENCY sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-EFFECTIVE_DATE sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-PAYMENT_CARD_ID sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-VALID_FROM sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-VALID_TO sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-CARD_HOLDER sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-CARD_NUMBER sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-PAYMENT_CARD_TYPE_ID sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-CVC sy-vline 
WA_FMCAS_MC_PAYMENT_ON_ACCOUNT_STR-DOCUMENT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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