ABAP Select data from SAP table COVRDUEACCTRBLS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COVRDUEACCTRBLS
*  INTO TABLE @DATA(IT_COVRDUEACCTRBLS2).
*--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_COVRDUEACCTRBLS INDEX 1 INTO DATA(WA_COVRDUEACCTRBLS2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COVRDUEACCTRBLS-GLACCOUNT, sy-vline,
  WA_COVRDUEACCTRBLS-CREDITSEGMENT, sy-vline,
  WA_COVRDUEACCTRBLS-SPECIALGLCODENAME, sy-vline,
  WA_COVRDUEACCTRBLS-GLACCOUNTLONGNAME, sy-vline,
  WA_COVRDUEACCTRBLS-CREDITSEGMENTNAME, sy-vline,
  WA_COVRDUEACCTRBLS-COMPANYCODENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COVRDUEACCTRBLS 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_COVRDUEACCTRBLS 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_COVRDUEACCTRBLS INTO WA_COVRDUEACCTRBLS.


*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_COVRDUEACCTRBLS-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COVRDUEACCTRBLS-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field RECONCILIATIONACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COVRDUEACCTRBLS-RECONCILIATIONACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COVRDUEACCTRBLS-RECONCILIATIONACCOUNT.
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_COVRDUEACCTRBLS_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
CUSTOMER TYPE STRING,
NETDUEINTERVALTEXT TYPE STRING,
SPECIALGLCODE TYPE STRING,
GLACCOUNT TYPE STRING,
CREDITSEGMENT TYPE STRING,
SPECIALGLCODENAME TYPE STRING,
GLACCOUNTLONGNAME TYPE STRING,
CREDITSEGMENTNAME TYPE STRING,
COMPANYCODENAME TYPE STRING,
CUSTOMERNAME TYPE STRING,
CUSTOMERCOUNTRY TYPE STRING,
CUSTOMERCOUNTRYNAME TYPE STRING,
CUSTOMERREGION TYPE STRING,
CUSTOMERREGIONNAME TYPE STRING,
ACCOUNTINGCLERK TYPE STRING,
ACCOUNTINGCLERKNAME TYPE STRING,
RECONCILIATIONACCOUNT TYPE STRING,
RECONCILIATIONACCOUNTLONGNAME TYPE STRING,
CUSTOMERACCOUNTGROUP TYPE STRING,
CUSTOMERACCOUNTGROUPNAME TYPE STRING,
CUSTOMERCLASSIFICATION TYPE STRING,
CUSTOMERCLASSIFICATIONDESC TYPE STRING,
CREDITRISKCLASS TYPE STRING,
CREDITRISKCLASSNAME TYPE STRING,
EXCHANGERATETYPE 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,
TOTALAMOUNTINDISPLAYCRCY TYPE STRING,
OVERDUERECEIVABLESINPERCENT TYPE STRING,
OVERDUERECEIVABLESRATIO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COVRDUEACCTRBLS_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_COVRDUEACCTRBLS_STR-MANDT sy-vline 
WA_COVRDUEACCTRBLS_STR-COMPANYCODE sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMER sy-vline 
WA_COVRDUEACCTRBLS_STR-NETDUEINTERVALTEXT sy-vline 
WA_COVRDUEACCTRBLS_STR-SPECIALGLCODE sy-vline 
WA_COVRDUEACCTRBLS_STR-GLACCOUNT sy-vline 
WA_COVRDUEACCTRBLS_STR-CREDITSEGMENT sy-vline 
WA_COVRDUEACCTRBLS_STR-SPECIALGLCODENAME sy-vline 
WA_COVRDUEACCTRBLS_STR-GLACCOUNTLONGNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-CREDITSEGMENTNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-COMPANYCODENAME sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERCOUNTRY sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERCOUNTRYNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERREGION sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERREGIONNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-ACCOUNTINGCLERK sy-vline 
WA_COVRDUEACCTRBLS_STR-ACCOUNTINGCLERKNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-RECONCILIATIONACCOUNT sy-vline 
WA_COVRDUEACCTRBLS_STR-RECONCILIATIONACCOUNTLONGNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERACCOUNTGROUP sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERACCOUNTGROUPNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERCLASSIFICATION sy-vline 
WA_COVRDUEACCTRBLS_STR-CUSTOMERCLASSIFICATIONDESC sy-vline 
WA_COVRDUEACCTRBLS_STR-CREDITRISKCLASS sy-vline 
WA_COVRDUEACCTRBLS_STR-CREDITRISKCLASSNAME sy-vline 
WA_COVRDUEACCTRBLS_STR-EXCHANGERATETYPE sy-vline 
WA_COVRDUEACCTRBLS_STR-DISPLAYCURRENCY sy-vline 
WA_COVRDUEACCTRBLS_STR-NUMBEROFOPENITEMS sy-vline 
WA_COVRDUEACCTRBLS_STR-AMOUNTINDISPLAYCURRENCY sy-vline 
WA_COVRDUEACCTRBLS_STR-TOTALOVERDUEAMTINDSPCRCY sy-vline 
WA_COVRDUEACCTRBLS_STR-TOTALNOTOVRDAMTINDSPCRCY sy-vline 
WA_COVRDUEACCTRBLS_STR-NETDUEINTVL1AMTINDSPCRCY sy-vline 
WA_COVRDUEACCTRBLS_STR-NETDUEINTVL2AMTINDSPCRCY sy-vline 
WA_COVRDUEACCTRBLS_STR-NETDUEINTVL3AMTINDSPCRCY sy-vline 
WA_COVRDUEACCTRBLS_STR-NETDUELASTINTVLAMTINDSPCRCY sy-vline 
WA_COVRDUEACCTRBLS_STR-TOTALAMOUNTINDISPLAYCRCY sy-vline 
WA_COVRDUEACCTRBLS_STR-OVERDUERECEIVABLESINPERCENT sy-vline 
WA_COVRDUEACCTRBLS_STR-OVERDUERECEIVABLESRATIO sy-vline      INTO ld_text SEPARATED BY SPACE.

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