ABAP Select data from SAP table ITRLTRANS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITRLTRANS
*  INTO TABLE @DATA(IT_ITRLTRANS2).
*--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_ITRLTRANS INDEX 1 INTO DATA(WA_ITRLTRANS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITRLTRANS>-MANDT = 1.
<ITRLTRANS>-TREASURYLEDGERTRANSACTION = 1.
<ITRLTRANS>-FININSTRPRODUCTGROUP = 1.
<ITRLTRANS>-TREASURYBUSINESSTRANSCATEGORY = 1.
<ITRLTRANS>-TREASURYPOSITIONLEDGERDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITRLTRANS-TREASURYBUSINESSTRANSACTION, sy-vline,
  WA_ITRLTRANS-TRSYBUSTRANSACTIONCREATIONDATE, sy-vline,
  WA_ITRLTRANS-TRSYBUSTRANSACTIONCREATIONTIME, sy-vline,
  WA_ITRLTRANS-TRSYDERIVEDBUSTRANSACISUPDATED, sy-vline,
  WA_ITRLTRANS-TREASURYBUSINESSTRANSSTATUS, sy-vline,
  WA_ITRLTRANS-TREASURYVALUATIONAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITRLTRANS 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_ITRLTRANS 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_ITRLTRANS INTO WA_ITRLTRANS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ITRLTRANS_STR, 
MANDT TYPE STRING,
TREASURYLEDGERTRANSACTION TYPE STRING,
FININSTRPRODUCTGROUP TYPE STRING,
TREASURYBUSINESSTRANSCATEGORY TYPE STRING,
TREASURYPOSITIONLEDGERDATE TYPE STRING,
TREASURYBUSINESSTRANSACTION TYPE STRING,
TRSYBUSTRANSACTIONCREATIONDATE TYPE STRING,
TRSYBUSTRANSACTIONCREATIONTIME TYPE STRING,
TRSYDERIVEDBUSTRANSACISUPDATED TYPE STRING,
TREASURYBUSINESSTRANSSTATUS TYPE STRING,
TREASURYVALUATIONAREA TYPE STRING,
TREASURYACCOUNTINGCODE TYPE STRING,
ORIGLTRSYBUSINESSTRANSACTION TYPE STRING,
POSTINGDATE TYPE STRING,
POSTINGREVERSALDATE TYPE STRING,
TRSYINTRAGROUPTRANSACSTATUS TYPE STRING,
TREASURYUSERSTATISTICSUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITRLTRANS_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_ITRLTRANS_STR-MANDT sy-vline 
WA_ITRLTRANS_STR-TREASURYLEDGERTRANSACTION sy-vline 
WA_ITRLTRANS_STR-FININSTRPRODUCTGROUP sy-vline 
WA_ITRLTRANS_STR-TREASURYBUSINESSTRANSCATEGORY sy-vline 
WA_ITRLTRANS_STR-TREASURYPOSITIONLEDGERDATE sy-vline 
WA_ITRLTRANS_STR-TREASURYBUSINESSTRANSACTION sy-vline 
WA_ITRLTRANS_STR-TRSYBUSTRANSACTIONCREATIONDATE sy-vline 
WA_ITRLTRANS_STR-TRSYBUSTRANSACTIONCREATIONTIME sy-vline 
WA_ITRLTRANS_STR-TRSYDERIVEDBUSTRANSACISUPDATED sy-vline 
WA_ITRLTRANS_STR-TREASURYBUSINESSTRANSSTATUS sy-vline 
WA_ITRLTRANS_STR-TREASURYVALUATIONAREA sy-vline 
WA_ITRLTRANS_STR-TREASURYACCOUNTINGCODE sy-vline 
WA_ITRLTRANS_STR-ORIGLTRSYBUSINESSTRANSACTION sy-vline 
WA_ITRLTRANS_STR-POSTINGDATE sy-vline 
WA_ITRLTRANS_STR-POSTINGREVERSALDATE sy-vline 
WA_ITRLTRANS_STR-TRSYINTRAGROUPTRANSACSTATUS sy-vline 
WA_ITRLTRANS_STR-TREASURYUSERSTATISTICSUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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