ABAP Select data from SAP table /SCMTMS/S_DOCUMENT_REFERENCE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCMTMS/S_DOCUMENT_REFERENCE 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 /SCMTMS/S_DOCUMENT_REFERENCE. 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 /SCMTMS/S_DOCUMENT_REFERENCE 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_/SCMTMS/S_DOCUMENT_REFERENCE TYPE STANDARD TABLE OF /SCMTMS/S_DOCUMENT_REFERENCE,
      WA_/SCMTMS/S_DOCUMENT_REFERENCE TYPE /SCMTMS/S_DOCUMENT_REFERENCE,
      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: </SCMTMS/S_DOCUMENT_REFERENCE> TYPE /SCMTMS/S_DOCUMENT_REFERENCE.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCMTMS/S_DOCUMENT_REFERENCE
  INTO TABLE IT_/SCMTMS/S_DOCUMENT_REFERENCE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMTMS/S_DOCUMENT_REFERENCE
*  INTO TABLE @DATA(IT_/SCMTMS/S_DOCUMENT_REFERENCE2).
*--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_/SCMTMS/S_DOCUMENT_REFERENCE INDEX 1 INTO DATA(WA_/SCMTMS/S_DOCUMENT_REFERENCE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCMTMS/S_DOCUMENT_REFERENCE ASSIGNING </SCMTMS/S_DOCUMENT_REFERENCE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMTMS/S_DOCUMENT_REFERENCE>-BTD_ID006 = 1.
</SCMTMS/S_DOCUMENT_REFERENCE>-SID006 = 1.
</SCMTMS/S_DOCUMENT_REFERENCE>-SVID006 = 1.
</SCMTMS/S_DOCUMENT_REFERENCE>-SAID006 = 1.
</SCMTMS/S_DOCUMENT_REFERENCE>-SASID006 = 1.

ENDLOOP.

LOOP AT IT_/SCMTMS/S_DOCUMENT_REFERENCE INTO WA_/SCMTMS/S_DOCUMENT_REFERENCE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMTMS/S_DOCUMENT_REFERENCE-SAS2ID006, sy-vline,
  WA_/SCMTMS/S_DOCUMENT_REFERENCE-BTD_ID006_I, sy-vline,
  WA_/SCMTMS/S_DOCUMENT_REFERENCE-UUID, sy-vline,
  WA_/SCMTMS/S_DOCUMENT_REFERENCE-SID014, sy-vline,
  WA_/SCMTMS/S_DOCUMENT_REFERENCE-SAID014, sy-vline,
  WA_/SCMTMS/S_DOCUMENT_REFERENCE-BTD_TCO129, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMTMS/S_DOCUMENT_REFERENCE 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_/SCMTMS/S_DOCUMENT_REFERENCE 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_/SCMTMS/S_DOCUMENT_REFERENCE INTO WA_/SCMTMS/S_DOCUMENT_REFERENCE.


*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 BTD_ID006
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_DOCUMENT_REFERENCE-BTD_ID006
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_DOCUMENT_REFERENCE-BTD_ID006.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BTD_ID006_I
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_DOCUMENT_REFERENCE-BTD_ID006_I
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_DOCUMENT_REFERENCE-BTD_ID006_I.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE_CODE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_DOCUMENT_REFERENCE-LANGUAGE_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_DOCUMENT_REFERENCE-LANGUAGE_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ITEM_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_DOCUMENT_REFERENCE-ITEM_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_DOCUMENT_REFERENCE-ITEM_ID.
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_/SCMTMS/S_DOCUMENT_REFERENCE_STR, 
BTD_ID006 TYPE STRING,
SID006 TYPE STRING,
SVID006 TYPE STRING,
SAID006 TYPE STRING,
SASID006 TYPE STRING,
SAS2ID006 TYPE STRING,
BTD_ID006_I TYPE STRING,
UUID TYPE STRING,
SID014 TYPE STRING,
SAID014 TYPE STRING,
BTD_TCO129 TYPE STRING,
LID129 TYPE STRING,
LVID129 TYPE STRING,
LAID129 TYPE STRING,
LASID129 TYPE STRING,
LAS2ID129 TYPE STRING,
BTD_TCO129_I TYPE STRING,
DOC_NOTE TYPE STRING,
LANGUAGE_CODE TYPE STRING,
ITEM_ID TYPE STRING,
ITEM_UUID TYPE STRING,
BTDITM_TCO150 TYPE STRING,
EEW_GEN_DOC_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMTMS/S_DOCUMENT_REFERENCE_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_/SCMTMS/S_DOCUMENT_REFERENCE_STR-BTD_ID006 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-SID006 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-SVID006 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-SAID006 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-SASID006 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-SAS2ID006 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-BTD_ID006_I sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-UUID sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-SID014 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-SAID014 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-BTD_TCO129 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-LID129 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-LVID129 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-LAID129 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-LASID129 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-LAS2ID129 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-BTD_TCO129_I sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-DOC_NOTE sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-LANGUAGE_CODE sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-ITEM_ID sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-ITEM_UUID sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-BTDITM_TCO150 sy-vline 
WA_/SCMTMS/S_DOCUMENT_REFERENCE_STR-EEW_GEN_DOC_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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