ABAP Select data from SAP table ILSTMIDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ILSTMIDOC
*  INTO TABLE @DATA(IT_ILSTMIDOC2).
*--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_ILSTMIDOC INDEX 1 INTO DATA(WA_ILSTMIDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ILSTMIDOC>-MANDT = 1.
<ILSTMIDOC>-LSTMIROUTEDOCUMENTHEADERUUID = 1.
<ILSTMIDOC>-LASTMILEROUTEVISITUUID = 1.
<ILSTMIDOC>-LASTMILEROUTESTOPUUID = 1.
<ILSTMIDOC>-LASTMILEROUTEUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ILSTMIDOC-LASTMILEROUTEDOCUMENTNUMBER, sy-vline,
  WA_ILSTMIDOC-SDDOCUMENT, sy-vline,
  WA_ILSTMIDOC-LASTMILEROUTEDOCUMENTTYPE, sy-vline,
  WA_ILSTMIDOC-LASTMILEROUTEDOCUMENTYEAR, sy-vline,
  WA_ILSTMIDOC-LASTMILEROUTEDOCUMENTDATE, sy-vline,
  WA_ILSTMIDOC-SOLDTOPARTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ILSTMIDOC 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_ILSTMIDOC 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_ILSTMIDOC INTO WA_ILSTMIDOC.


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

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

*Conversion exit GJAHR, internal->external for field LASTMILEROUTEDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ILSTMIDOC-LASTMILEROUTEDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ILSTMIDOC-LASTMILEROUTEDOCUMENTYEAR.
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_ILSTMIDOC_STR, 
MANDT TYPE STRING,
LSTMIROUTEDOCUMENTHEADERUUID TYPE STRING,
LASTMILEROUTEVISITUUID TYPE STRING,
LASTMILEROUTESTOPUUID TYPE STRING,
LASTMILEROUTEUUID TYPE STRING,
LASTMILEROUTEDOCUMENTNUMBER TYPE STRING,
SDDOCUMENT TYPE STRING,
LASTMILEROUTEDOCUMENTTYPE TYPE STRING,
LASTMILEROUTEDOCUMENTYEAR TYPE STRING,
LASTMILEROUTEDOCUMENTDATE TYPE STRING,
SOLDTOPARTY TYPE STRING,
SHIPTOPARTY TYPE STRING,
ADDRESSID TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
LSTMIROUTEDOCUMENTREASONCODE TYPE STRING,
LSTMIRTEDOCUMENTSIGNATUREDATE TYPE STRING,
CUSTOMERREFERENCENUMBER TYPE STRING,
LASTMILEROUTEDOCUMENTISRETURN TYPE STRING,
LSTMIISDOCCREATEDBYSETTLEMENT TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
LASTMILEROUTEDOCUMENTAMOUNT TYPE STRING,
LASTMILEROUTECURRENCY TYPE STRING,
CUSTOMERPAYMENTTERMS TYPE STRING,
LSTMIRTEASSGDPAYTCOLLTDAMOUNT TYPE STRING,
LASTMILEROUTEISMNLLYADDEDRECD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ILSTMIDOC_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_ILSTMIDOC_STR-MANDT sy-vline 
WA_ILSTMIDOC_STR-LSTMIROUTEDOCUMENTHEADERUUID sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEVISITUUID sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTESTOPUUID sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEUUID sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEDOCUMENTNUMBER sy-vline 
WA_ILSTMIDOC_STR-SDDOCUMENT sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEDOCUMENTTYPE sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEDOCUMENTYEAR sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEDOCUMENTDATE sy-vline 
WA_ILSTMIDOC_STR-SOLDTOPARTY sy-vline 
WA_ILSTMIDOC_STR-SHIPTOPARTY sy-vline 
WA_ILSTMIDOC_STR-ADDRESSID sy-vline 
WA_ILSTMIDOC_STR-SALESORGANIZATION sy-vline 
WA_ILSTMIDOC_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ILSTMIDOC_STR-DIVISION sy-vline 
WA_ILSTMIDOC_STR-LSTMIROUTEDOCUMENTREASONCODE sy-vline 
WA_ILSTMIDOC_STR-LSTMIRTEDOCUMENTSIGNATUREDATE sy-vline 
WA_ILSTMIDOC_STR-CUSTOMERREFERENCENUMBER sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEDOCUMENTISRETURN sy-vline 
WA_ILSTMIDOC_STR-LSTMIISDOCCREATEDBYSETTLEMENT sy-vline 
WA_ILSTMIDOC_STR-DOCUMENTREFERENCEID sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEDOCUMENTAMOUNT sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTECURRENCY sy-vline 
WA_ILSTMIDOC_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_ILSTMIDOC_STR-LSTMIRTEASSGDPAYTCOLLTDAMOUNT sy-vline 
WA_ILSTMIDOC_STR-LASTMILEROUTEISMNLLYADDEDRECD sy-vline      INTO ld_text SEPARATED BY SPACE.

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