ABAP Select data from SAP table IHNDLGUNITITJIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IHNDLGUNITITJIT
*  INTO TABLE @DATA(IT_IHNDLGUNITITJIT2).
*--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_IHNDLGUNITITJIT INDEX 1 INTO DATA(WA_IHNDLGUNITITJIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IHNDLGUNITITJIT>-MANDT = 1.
<IHNDLGUNITITJIT>-JITHEADERUUID = 1.
<IHNDLGUNITITJIT>-INTERNALJITCALLNUMBER = 1.
<IHNDLGUNITITJIT>-EXTERNALJITCALLNUMBER = 1.
<IHNDLGUNITITJIT>-JITCALLTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IHNDLGUNITITJIT-BUSINESSTRANSACTIONDOCUMENT, sy-vline,
  WA_IHNDLGUNITITJIT-BUSINESSTRANSACTIONDOCITEM, sy-vline,
  WA_IHNDLGUNITITJIT-SALESORGANIZATION, sy-vline,
  WA_IHNDLGUNITITJIT-DISTRIBUTIONCHANNEL, sy-vline,
  WA_IHNDLGUNITITJIT-DIVISION, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_IHNDLGUNITITJIT 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_IHNDLGUNITITJIT 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_IHNDLGUNITITJIT INTO WA_IHNDLGUNITITJIT.


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

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

*Conversion exit ALPHA, internal->external for field BUSINESSTRANSACTIONDOCITEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IHNDLGUNITITJIT-BUSINESSTRANSACTIONDOCITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHNDLGUNITITJIT-BUSINESSTRANSACTIONDOCITEM.
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_IHNDLGUNITITJIT_STR, 
MANDT TYPE STRING,
JITHEADERUUID TYPE STRING,
INTERNALJITCALLNUMBER TYPE STRING,
EXTERNALJITCALLNUMBER TYPE STRING,
JITCALLTYPE TYPE STRING,
BUSINESSTRANSACTIONDOCUMENT TYPE STRING,
BUSINESSTRANSACTIONDOCITEM TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IHNDLGUNITITJIT_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_IHNDLGUNITITJIT_STR-MANDT sy-vline 
WA_IHNDLGUNITITJIT_STR-JITHEADERUUID sy-vline 
WA_IHNDLGUNITITJIT_STR-INTERNALJITCALLNUMBER sy-vline 
WA_IHNDLGUNITITJIT_STR-EXTERNALJITCALLNUMBER sy-vline 
WA_IHNDLGUNITITJIT_STR-JITCALLTYPE sy-vline 
WA_IHNDLGUNITITJIT_STR-BUSINESSTRANSACTIONDOCUMENT sy-vline 
WA_IHNDLGUNITITJIT_STR-BUSINESSTRANSACTIONDOCITEM sy-vline 
WA_IHNDLGUNITITJIT_STR-SALESORGANIZATION sy-vline 
WA_IHNDLGUNITITJIT_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_IHNDLGUNITITJIT_STR-DIVISION sy-vline      INTO ld_text SEPARATED BY SPACE.

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