ABAP Select data from SAP table IFIDAYSBYNDTERMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFIDAYSBYNDTERMS
*  INTO TABLE @DATA(IT_IFIDAYSBYNDTERMS2).
*--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_IFIDAYSBYNDTERMS INDEX 1 INTO DATA(WA_IFIDAYSBYNDTERMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFIDAYSBYNDTERMS>-MANDT = 1.
<IFIDAYSBYNDTERMS>-CALENDARYEAR = 1.
<IFIDAYSBYNDTERMS>-CALENDARMONTH = 1.
<IFIDAYSBYNDTERMS>-CUSTOMER = 1.
<IFIDAYSBYNDTERMS>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFIDAYSBYNDTERMS-FINANCIALACCOUNTTYPE, sy-vline,
  WA_IFIDAYSBYNDTERMS-YEARMONTH, sy-vline,
  WA_IFIDAYSBYNDTERMS-CUSTOMERCOUNTRY, sy-vline,
  WA_IFIDAYSBYNDTERMS-CUSTOMERREGION, sy-vline,
  WA_IFIDAYSBYNDTERMS-ACCOUNTINGCLERK, sy-vline,
  WA_IFIDAYSBYNDTERMS-EXCHANGERATETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFIDAYSBYNDTERMS 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_IFIDAYSBYNDTERMS 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_IFIDAYSBYNDTERMS INTO WA_IFIDAYSBYNDTERMS.


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

*Conversion exit PERI6, internal->external for field YEARMONTH
CALL FUNCTION 'CONVERSION_EXIT_PERI6_OUTPUT'
  EXPORTING
    input =                      WA_IFIDAYSBYNDTERMS-YEARMONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFIDAYSBYNDTERMS-YEARMONTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECONCILIATIONACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFIDAYSBYNDTERMS-RECONCILIATIONACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFIDAYSBYNDTERMS-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_IFIDAYSBYNDTERMS_STR, 
MANDT TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARMONTH TYPE STRING,
CUSTOMER TYPE STRING,
COMPANYCODE TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
YEARMONTH TYPE STRING,
CUSTOMERCOUNTRY TYPE STRING,
CUSTOMERREGION TYPE STRING,
ACCOUNTINGCLERK TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
DURATIONUNIT TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
RECONCILIATIONACCOUNT TYPE STRING,
CUSTOMERBASICAUTHORIZATIONGRP TYPE STRING,
CUSTOMERFINSAUTHORIZATIONGRP TYPE STRING,
CUSTOMERACCOUNTGROUP TYPE STRING,
CUSTOMERCLASSIFICATION TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
WEIGHTEDCLEAREDAMOUNTINDSPCRCY TYPE STRING,
CLEAREDAMOUNTINDISPLAYCURRENCY TYPE STRING,
WGTDPAIDWTHNTERMSAMTINDSPCRCY TYPE STRING,
WGTDPAIDOUTOFTERMSAMTINDSPCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFIDAYSBYNDTERMS_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_IFIDAYSBYNDTERMS_STR-MANDT sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CALENDARYEAR sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CALENDARMONTH sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CUSTOMER sy-vline 
WA_IFIDAYSBYNDTERMS_STR-COMPANYCODE sy-vline 
WA_IFIDAYSBYNDTERMS_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_IFIDAYSBYNDTERMS_STR-YEARMONTH sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CUSTOMERCOUNTRY sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CUSTOMERREGION sy-vline 
WA_IFIDAYSBYNDTERMS_STR-ACCOUNTINGCLERK sy-vline 
WA_IFIDAYSBYNDTERMS_STR-EXCHANGERATETYPE sy-vline 
WA_IFIDAYSBYNDTERMS_STR-DURATIONUNIT sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CHARTOFACCOUNTS sy-vline 
WA_IFIDAYSBYNDTERMS_STR-RECONCILIATIONACCOUNT sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CUSTOMERBASICAUTHORIZATIONGRP sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CUSTOMERFINSAUTHORIZATIONGRP sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CUSTOMERACCOUNTGROUP sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CUSTOMERCLASSIFICATION sy-vline 
WA_IFIDAYSBYNDTERMS_STR-DISPLAYCURRENCY sy-vline 
WA_IFIDAYSBYNDTERMS_STR-WEIGHTEDCLEAREDAMOUNTINDSPCRCY sy-vline 
WA_IFIDAYSBYNDTERMS_STR-CLEAREDAMOUNTINDISPLAYCURRENCY sy-vline 
WA_IFIDAYSBYNDTERMS_STR-WGTDPAIDWTHNTERMSAMTINDSPCRCY sy-vline 
WA_IFIDAYSBYNDTERMS_STR-WGTDPAIDOUTOFTERMSAMTINDSPCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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