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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMTMS/D_SFIDOC
*  INTO TABLE @DATA(IT_/SCMTMS/D_SFIDOC2).
*--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/D_SFIDOC INDEX 1 INTO DATA(WA_/SCMTMS/D_SFIDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMTMS/D_SFIDOC>-MANDT = 1.
</SCMTMS/D_SFIDOC>-DB_KEY = 1.
</SCMTMS/D_SFIDOC>-ROOT_KEY = 1.
</SCMTMS/D_SFIDOC>-PARENT_KEY = 1.
</SCMTMS/D_SFIDOC>-BTD_TCO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMTMS/D_SFIDOC-BTD_ID, sy-vline,
  WA_/SCMTMS/D_SFIDOC-BTDITEM_TCO, sy-vline,
  WA_/SCMTMS/D_SFIDOC-BTDITEM_ID, sy-vline,
  WA_/SCMTMS/D_SFIDOC-BTD_DATE, sy-vline,
  WA_/SCMTMS/D_SFIDOC-BTD_ISSUER, sy-vline,
  WA_/SCMTMS/D_SFIDOC-SFIR_ITEM_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMTMS/D_SFIDOC 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/D_SFIDOC 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/D_SFIDOC INTO WA_/SCMTMS/D_SFIDOC.


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

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

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

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

*Conversion exit ALPHA, internal->external for field ITEM_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_SFIDOC-ITEM_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_SFIDOC-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/D_SFIDOC_STR, 
MANDT TYPE STRING,
DB_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
PARENT_KEY TYPE STRING,
BTD_TCO TYPE STRING,
BTD_ID TYPE STRING,
BTDITEM_TCO TYPE STRING,
BTDITEM_ID TYPE STRING,
BTD_DATE TYPE STRING,
BTD_ISSUER TYPE STRING,
SFIR_ITEM_ID TYPE STRING,
ID TYPE STRING,
ITEM_ID TYPE STRING,
SRC_LOC_ID TYPE STRING,
DES_LOC_ID TYPE STRING,
CREDIT_DEBIT_IND TYPE STRING,
CHRG_DUE_CODE TYPE STRING,
TAX_AMOUNT TYPE STRING,
TAX_CURRENCY TYPE STRING,
TAX_CODE TYPE STRING,
_DATAAGING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMTMS/D_SFIDOC_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/D_SFIDOC_STR-MANDT sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-DB_KEY sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-ROOT_KEY sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-PARENT_KEY sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-BTD_TCO sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-BTD_ID sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-BTDITEM_TCO sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-BTDITEM_ID sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-BTD_DATE sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-BTD_ISSUER sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-SFIR_ITEM_ID sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-ID sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-ITEM_ID sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-SRC_LOC_ID sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-DES_LOC_ID sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-CREDIT_DEBIT_IND sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-CHRG_DUE_CODE sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-TAX_AMOUNT sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-TAX_CURRENCY sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-TAX_CODE sy-vline 
WA_/SCMTMS/D_SFIDOC_STR-_DATAAGING sy-vline      INTO ld_text SEPARATED BY SPACE.

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