ABAP Select data from SAP table UPDTRESITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPDTRESITEM
*  INTO TABLE @DATA(IT_UPDTRESITEM2).
*--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_UPDTRESITEM INDEX 1 INTO DATA(WA_UPDTRESITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPDTRESITEM>-MANDT = 1.
<UPDTRESITEM>-COMPANYCODE = 1.
<UPDTRESITEM>-FISCALYEAR = 1.
<UPDTRESITEM>-ACCOUNTINGDOCUMENT = 1.
<UPDTRESITEM>-ACCOUNTINGDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPDTRESITEM-ASSIGNMENTREFERENCE, sy-vline,
  WA_UPDTRESITEM-ACCOUNTINGDOCUMENTHEADERTEXT, sy-vline,
  WA_UPDTRESITEM-DOCUMENTITEMTEXT, sy-vline,
  WA_UPDTRESITEM-PAYMENTDIFFERENCEREASON, sy-vline,
  WA_UPDTRESITEM-CREATIONDATE, sy-vline,
  WA_UPDTRESITEM-CREATIONTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPDTRESITEM 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_UPDTRESITEM 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_UPDTRESITEM INTO WA_UPDTRESITEM.


*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 GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_UPDTRESITEM-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPDTRESITEM-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UPDTRESITEM-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPDTRESITEM-ACCOUNTINGDOCUMENT.
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_UPDTRESITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
ACCOUNTINGDOCUMENTHEADERTEXT TYPE STRING,
DOCUMENTITEMTEXT TYPE STRING,
PAYMENTDIFFERENCEREASON TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
CHANGEDOCCREATIONDATE TYPE STRING,
CHANGEDOCUMENTCREATIONTIME TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
NETDUEDATE TYPE STRING,
CASHDISCOUNTBASEAMOUNT TYPE STRING,
CASHDISCOUNTAMOUNT TYPE STRING,
PAYMENTTERMS TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT2PERCENT TYPE STRING,
DUECALCULATIONBASEDATE TYPE STRING,
FIXEDCASHDISCOUNT TYPE STRING,
PAYMENTBLOCKINGREASON TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPDTRESITEM_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_UPDTRESITEM_STR-MANDT sy-vline 
WA_UPDTRESITEM_STR-COMPANYCODE sy-vline 
WA_UPDTRESITEM_STR-FISCALYEAR sy-vline 
WA_UPDTRESITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_UPDTRESITEM_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_UPDTRESITEM_STR-ASSIGNMENTREFERENCE sy-vline 
WA_UPDTRESITEM_STR-ACCOUNTINGDOCUMENTHEADERTEXT sy-vline 
WA_UPDTRESITEM_STR-DOCUMENTITEMTEXT sy-vline 
WA_UPDTRESITEM_STR-PAYMENTDIFFERENCEREASON sy-vline 
WA_UPDTRESITEM_STR-CREATIONDATE sy-vline 
WA_UPDTRESITEM_STR-CREATIONTIME sy-vline 
WA_UPDTRESITEM_STR-LASTCHANGEDATE sy-vline 
WA_UPDTRESITEM_STR-CHANGEDOCCREATIONDATE sy-vline 
WA_UPDTRESITEM_STR-CHANGEDOCUMENTCREATIONTIME sy-vline 
WA_UPDTRESITEM_STR-POSTINGDATE sy-vline 
WA_UPDTRESITEM_STR-DOCUMENTDATE sy-vline 
WA_UPDTRESITEM_STR-NETDUEDATE sy-vline 
WA_UPDTRESITEM_STR-CASHDISCOUNTBASEAMOUNT sy-vline 
WA_UPDTRESITEM_STR-CASHDISCOUNTAMOUNT sy-vline 
WA_UPDTRESITEM_STR-PAYMENTTERMS sy-vline 
WA_UPDTRESITEM_STR-CASHDISCOUNT1DAYS sy-vline 
WA_UPDTRESITEM_STR-CASHDISCOUNT2DAYS sy-vline 
WA_UPDTRESITEM_STR-NETPAYMENTDAYS sy-vline 
WA_UPDTRESITEM_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_UPDTRESITEM_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_UPDTRESITEM_STR-DUECALCULATIONBASEDATE sy-vline 
WA_UPDTRESITEM_STR-FIXEDCASHDISCOUNT sy-vline 
WA_UPDTRESITEM_STR-PAYMENTBLOCKINGREASON sy-vline 
WA_UPDTRESITEM_STR-TRANSACTIONCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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