ABAP Select data from SAP table ILMRSTLTCOCIDIFF into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ILMRSTLTCOCIDIFF 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 ILMRSTLTCOCIDIFF. 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 ILMRSTLTCOCIDIFF 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_ILMRSTLTCOCIDIFF TYPE STANDARD TABLE OF ILMRSTLTCOCIDIFF,
      WA_ILMRSTLTCOCIDIFF TYPE ILMRSTLTCOCIDIFF,
      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: <ILMRSTLTCOCIDIFF> TYPE ILMRSTLTCOCIDIFF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ILMRSTLTCOCIDIFF
*  INTO TABLE @DATA(IT_ILMRSTLTCOCIDIFF2).
*--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_ILMRSTLTCOCIDIFF INDEX 1 INTO DATA(WA_ILMRSTLTCOCIDIFF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ILMRSTLTCOCIDIFF>-MANDT = 1.
<ILMRSTLTCOCIDIFF>-LASTMILEROUTEDOCUMENTITEMUUID = 1.
<ILMRSTLTCOCIDIFF>-LASTMILEROUTEUUID = 1.
<ILMRSTLTCOCIDIFF>-LASTMILERTECHECKINCHECKOUTUUID = 1.
<ILMRSTLTCOCIDIFF>-LSTMIROUTEDOCUMENTHEADERUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ILMRSTLTCOCIDIFF-DELIVERYDOCUMENT, sy-vline,
  WA_ILMRSTLTCOCIDIFF-SDDOCUMENTCATEGORY, sy-vline,
  WA_ILMRSTLTCOCIDIFF-DELIVERYDOCUMENTITEM, sy-vline,
  WA_ILMRSTLTCOCIDIFF-PRODUCTID, sy-vline,
  WA_ILMRSTLTCOCIDIFF-LASTMILEROUTEACTUALQUANTITY, sy-vline,
  WA_ILMRSTLTCOCIDIFF-UNITOFMSROFDELIVUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ILMRSTLTCOCIDIFF 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_ILMRSTLTCOCIDIFF 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_ILMRSTLTCOCIDIFF INTO WA_ILMRSTLTCOCIDIFF.


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

*Conversion exit MATN1, internal->external for field PRODUCTID
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ILMRSTLTCOCIDIFF-PRODUCTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ILMRSTLTCOCIDIFF-PRODUCTID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNITOFMSROFDELIVUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ILMRSTLTCOCIDIFF-UNITOFMSROFDELIVUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ILMRSTLTCOCIDIFF-UNITOFMSROFDELIVUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AUART, internal->external for field SALESDOCUMENTTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ILMRSTLTCOCIDIFF-SALESDOCUMENTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ILMRSTLTCOCIDIFF-SALESDOCUMENTTYPE.
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_ILMRSTLTCOCIDIFF_STR, 
MANDT TYPE STRING,
LASTMILEROUTEDOCUMENTITEMUUID TYPE STRING,
LASTMILEROUTEUUID TYPE STRING,
LASTMILERTECHECKINCHECKOUTUUID TYPE STRING,
LSTMIROUTEDOCUMENTHEADERUUID TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
PRODUCTID TYPE STRING,
LASTMILEROUTEACTUALQUANTITY TYPE STRING,
UNITOFMSROFDELIVUNIT TYPE STRING,
LASTMILEROUTEITEMREASONCODE TYPE STRING,
REFERENCESDDOCUMENTCATEGORY TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
SALESDOCUMENTTYPE TYPE STRING,
LASTMILEROUTESTOPTYPE TYPE STRING,
LSTMIROUTEDOCUMENTITEMCURRENCY TYPE STRING,
LSTMIRTESETLDDIFFERENCEAMOUNT TYPE STRING,
LASTMILEROUTEPRODUCTISRETURN TYPE STRING,
LSTMIRTEHASSETLDCHKINDIFFS TYPE STRING,
LSTMIRTEHASSETLDCHKOUTDIFFS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ILMRSTLTCOCIDIFF_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_ILMRSTLTCOCIDIFF_STR-MANDT sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LASTMILEROUTEDOCUMENTITEMUUID sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LASTMILEROUTEUUID sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LASTMILERTECHECKINCHECKOUTUUID sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LSTMIROUTEDOCUMENTHEADERUUID sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-DELIVERYDOCUMENT sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-SDDOCUMENTCATEGORY sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-PRODUCTID sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LASTMILEROUTEACTUALQUANTITY sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-UNITOFMSROFDELIVUNIT sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LASTMILEROUTEITEMREASONCODE sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-REFERENCESDDOCUMENTCATEGORY sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-SALESDOCUMENT sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-SALESDOCUMENTITEM sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-SALESDOCUMENTTYPE sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LASTMILEROUTESTOPTYPE sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LSTMIROUTEDOCUMENTITEMCURRENCY sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LSTMIRTESETLDDIFFERENCEAMOUNT sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LASTMILEROUTEPRODUCTISRETURN sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LSTMIRTEHASSETLDCHKINDIFFS sy-vline 
WA_ILMRSTLTCOCIDIFF_STR-LSTMIRTEHASSETLDCHKOUTDIFFS sy-vline      INTO ld_text SEPARATED BY SPACE.

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