ABAP Select data from SAP table IOVRDUEACCTRBLS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IOVRDUEACCTRBLS
*  INTO TABLE @DATA(IT_IOVRDUEACCTRBLS2).
*--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_IOVRDUEACCTRBLS INDEX 1 INTO DATA(WA_IOVRDUEACCTRBLS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IOVRDUEACCTRBLS>-MANDT = 1.
<IOVRDUEACCTRBLS>-COMPANYCODE = 1.
<IOVRDUEACCTRBLS>-CUSTOMER = 1.
<IOVRDUEACCTRBLS>-SPECIALGLCODE = 1.
<IOVRDUEACCTRBLS>-GLACCOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IOVRDUEACCTRBLS-CREDITSEGMENT, sy-vline,
  WA_IOVRDUEACCTRBLS-NETDUEINTERVALTEXT, sy-vline,
  WA_IOVRDUEACCTRBLS-FINANCIALACCOUNTTYPE, sy-vline,
  WA_IOVRDUEACCTRBLS-RECONCILIATIONACCOUNT, sy-vline,
  WA_IOVRDUEACCTRBLS-CHARTOFACCOUNTS, sy-vline,
  WA_IOVRDUEACCTRBLS-EXCHANGERATETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IOVRDUEACCTRBLS 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_IOVRDUEACCTRBLS 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_IOVRDUEACCTRBLS INTO WA_IOVRDUEACCTRBLS.


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

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

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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IOVRDUEACCTRBLS-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOVRDUEACCTRBLS-BUSINESSPARTNER.
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_IOVRDUEACCTRBLS_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
CUSTOMER TYPE STRING,
SPECIALGLCODE TYPE STRING,
GLACCOUNT TYPE STRING,
CREDITSEGMENT TYPE STRING,
NETDUEINTERVALTEXT TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
RECONCILIATIONACCOUNT TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CUSTOMERCOUNTRY TYPE STRING,
CUSTOMERREGION TYPE STRING,
ACCOUNTINGCLERK TYPE STRING,
CUSTOMERACCOUNTGROUP TYPE STRING,
CUSTOMERCLASSIFICATION TYPE STRING,
CREDITRISKCLASS TYPE STRING,
CUSTOMERBASICAUTHORIZATIONGRP TYPE STRING,
CUSTOMERFINSAUTHORIZATIONGRP TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
NUMBEROFOPENITEMS TYPE STRING,
AMOUNTINDISPLAYCURRENCY TYPE STRING,
TOTALOVERDUEAMTINDSPCRCY TYPE STRING,
TOTALNOTOVRDAMTINDSPCRCY TYPE STRING,
NETDUEINTVL1AMTINDSPCRCY TYPE STRING,
NETDUEINTVL2AMTINDSPCRCY TYPE STRING,
NETDUEINTVL3AMTINDSPCRCY TYPE STRING,
NETDUELASTINTVLAMTINDSPCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IOVRDUEACCTRBLS_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_IOVRDUEACCTRBLS_STR-MANDT sy-vline 
WA_IOVRDUEACCTRBLS_STR-COMPANYCODE sy-vline 
WA_IOVRDUEACCTRBLS_STR-CUSTOMER sy-vline 
WA_IOVRDUEACCTRBLS_STR-SPECIALGLCODE sy-vline 
WA_IOVRDUEACCTRBLS_STR-GLACCOUNT sy-vline 
WA_IOVRDUEACCTRBLS_STR-CREDITSEGMENT sy-vline 
WA_IOVRDUEACCTRBLS_STR-NETDUEINTERVALTEXT sy-vline 
WA_IOVRDUEACCTRBLS_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_IOVRDUEACCTRBLS_STR-RECONCILIATIONACCOUNT sy-vline 
WA_IOVRDUEACCTRBLS_STR-CHARTOFACCOUNTS sy-vline 
WA_IOVRDUEACCTRBLS_STR-EXCHANGERATETYPE sy-vline 
WA_IOVRDUEACCTRBLS_STR-BUSINESSPARTNER sy-vline 
WA_IOVRDUEACCTRBLS_STR-CUSTOMERCOUNTRY sy-vline 
WA_IOVRDUEACCTRBLS_STR-CUSTOMERREGION sy-vline 
WA_IOVRDUEACCTRBLS_STR-ACCOUNTINGCLERK sy-vline 
WA_IOVRDUEACCTRBLS_STR-CUSTOMERACCOUNTGROUP sy-vline 
WA_IOVRDUEACCTRBLS_STR-CUSTOMERCLASSIFICATION sy-vline 
WA_IOVRDUEACCTRBLS_STR-CREDITRISKCLASS sy-vline 
WA_IOVRDUEACCTRBLS_STR-CUSTOMERBASICAUTHORIZATIONGRP sy-vline 
WA_IOVRDUEACCTRBLS_STR-CUSTOMERFINSAUTHORIZATIONGRP sy-vline 
WA_IOVRDUEACCTRBLS_STR-DISPLAYCURRENCY sy-vline 
WA_IOVRDUEACCTRBLS_STR-NUMBEROFOPENITEMS sy-vline 
WA_IOVRDUEACCTRBLS_STR-AMOUNTINDISPLAYCURRENCY sy-vline 
WA_IOVRDUEACCTRBLS_STR-TOTALOVERDUEAMTINDSPCRCY sy-vline 
WA_IOVRDUEACCTRBLS_STR-TOTALNOTOVRDAMTINDSPCRCY sy-vline 
WA_IOVRDUEACCTRBLS_STR-NETDUEINTVL1AMTINDSPCRCY sy-vline 
WA_IOVRDUEACCTRBLS_STR-NETDUEINTVL2AMTINDSPCRCY sy-vline 
WA_IOVRDUEACCTRBLS_STR-NETDUEINTVL3AMTINDSPCRCY sy-vline 
WA_IOVRDUEACCTRBLS_STR-NETDUELASTINTVLAMTINDSPCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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