ABAP Select data from SAP table ITRELDGRITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITRELDGRITM
*  INTO TABLE @DATA(IT_ITRELDGRITM2).
*--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_ITRELDGRITM INDEX 1 INTO DATA(WA_ITRELDGRITM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITRELDGRITM-STATRYRPTGENTITY, sy-vline,
  WA_ITRELDGRITM-STATRYRPTRUNID, sy-vline,
  WA_ITRELDGRITM-ACCOUNTINGDOCUMENTITEM, sy-vline,
  WA_ITRELDGRITM-FISCALPERIOD, sy-vline,
  WA_ITRELDGRITM-POSTINGDATE, sy-vline,
  WA_ITRELDGRITM-AMOUNTINCOMPANYCODECURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITRELDGRITM 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_ITRELDGRITM 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_ITRELDGRITM INTO WA_ITRELDGRITM.


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

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

*Conversion exit AU132, internal->external for field AMOUNTINCOMPANYCODECURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ITRELDGRITM-AMOUNTINCOMPANYCODECURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRELDGRITM-AMOUNTINCOMPANYCODECURRENCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TR_MONETARYAMTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ITRELDGRITM-TR_MONETARYAMTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRELDGRITM-TR_MONETARYAMTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ALTERNATIVEGLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITRELDGRITM-ALTERNATIVEGLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRELDGRITM-ALTERNATIVEGLACCOUNT.
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_ITRELDGRITM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTRUNID TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
FISCALPERIOD TYPE STRING,
POSTINGDATE TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
TR_MONETARYAMTINCOCODECRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
GLACCOUNT TYPE STRING,
SENDERGLACCOUNT TYPE STRING,
DEBITCREDITCODE TYPE STRING,
DOCUMENTDATE TYPE STRING,
ALTERNATIVEGLACCOUNT TYPE STRING,
ALTERNATIVEGLACCOUNTLONGNAME TYPE STRING,
GLACCOUNTLONGNAME TYPE STRING,
PAYMENTMETHODDESCRIPTION TYPE STRING,
ACCOUNTINGDOCCREATEDBYUSER TYPE STRING,
ACCOUNTINGDOCUMENTHEADERTEXT TYPE STRING,
TR_ELECTRONICLEDGERDOCTYPE TYPE STRING,
TR_ELECTRONICLEDGEREXTDOCNAME TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
DOCUMENTITEMTEXT TYPE STRING,
DOCUMENTHEADERSEQNUMBER TYPE STRING,
DOCUMENTITEMSEQNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITRELDGRITM_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_ITRELDGRITM_STR-MANDT sy-vline 
WA_ITRELDGRITM_STR-COMPANYCODE sy-vline 
WA_ITRELDGRITM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_ITRELDGRITM_STR-FISCALYEAR sy-vline 
WA_ITRELDGRITM_STR-STATRYRPTCATEGORY sy-vline 
WA_ITRELDGRITM_STR-STATRYRPTGENTITY sy-vline 
WA_ITRELDGRITM_STR-STATRYRPTRUNID sy-vline 
WA_ITRELDGRITM_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_ITRELDGRITM_STR-FISCALPERIOD sy-vline 
WA_ITRELDGRITM_STR-POSTINGDATE sy-vline 
WA_ITRELDGRITM_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_ITRELDGRITM_STR-TR_MONETARYAMTINCOCODECRCY sy-vline 
WA_ITRELDGRITM_STR-COMPANYCODECURRENCY sy-vline 
WA_ITRELDGRITM_STR-GLACCOUNT sy-vline 
WA_ITRELDGRITM_STR-SENDERGLACCOUNT sy-vline 
WA_ITRELDGRITM_STR-DEBITCREDITCODE sy-vline 
WA_ITRELDGRITM_STR-DOCUMENTDATE sy-vline 
WA_ITRELDGRITM_STR-ALTERNATIVEGLACCOUNT sy-vline 
WA_ITRELDGRITM_STR-ALTERNATIVEGLACCOUNTLONGNAME sy-vline 
WA_ITRELDGRITM_STR-GLACCOUNTLONGNAME sy-vline 
WA_ITRELDGRITM_STR-PAYMENTMETHODDESCRIPTION sy-vline 
WA_ITRELDGRITM_STR-ACCOUNTINGDOCCREATEDBYUSER sy-vline 
WA_ITRELDGRITM_STR-ACCOUNTINGDOCUMENTHEADERTEXT sy-vline 
WA_ITRELDGRITM_STR-TR_ELECTRONICLEDGERDOCTYPE sy-vline 
WA_ITRELDGRITM_STR-TR_ELECTRONICLEDGEREXTDOCNAME sy-vline 
WA_ITRELDGRITM_STR-DOCUMENTREFERENCEID sy-vline 
WA_ITRELDGRITM_STR-DOCUMENTITEMTEXT sy-vline 
WA_ITRELDGRITM_STR-DOCUMENTHEADERSEQNUMBER sy-vline 
WA_ITRELDGRITM_STR-DOCUMENTITEMSEQNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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