ABAP Select data from SAP table ICMMDTYORDDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICMMDTYORDDOC
*  INTO TABLE @DATA(IT_ICMMDTYORDDOC2).
*--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_ICMMDTYORDDOC INDEX 1 INTO DATA(WA_ICMMDTYORDDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICMMDTYORDDOC>-MANDT = 1.
<ICMMDTYORDDOC>-CMMDTYORDERREQUESTDOCUMENTUUID = 1.
<ICMMDTYORDDOC>-COMMODITYORDERREQUESTUUID = 1.
<ICMMDTYORDDOC>-COMMODITYORDERREQUEST = 1.
<ICMMDTYORDDOC>-COMMODITYORDERREQUESTDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICMMDTYORDDOC-CMMDTYORDREQUESTDOCUMENTITEM, sy-vline,
  WA_ICMMDTYORDDOC-CMMDTYORDREQDOCAPPLICATION, sy-vline,
  WA_ICMMDTYORDDOC-CMMDTYORDREQUESTDOCUMENTTYPE, sy-vline,
  WA_ICMMDTYORDDOC-CMMDTYORDREQDOCCONTRACTTYPE, sy-vline,
  WA_ICMMDTYORDDOC-CMMDTYORDREQDOCPRICINGSTATUS, sy-vline,
  WA_ICMMDTYORDDOC-CMMDTYORDREQDOCPRICINGLOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICMMDTYORDDOC 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_ICMMDTYORDDOC 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_ICMMDTYORDDOC INTO WA_ICMMDTYORDDOC.


*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 COMMODITYORDERREQUEST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMMDTYORDDOC-COMMODITYORDERREQUEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMMDTYORDDOC-COMMODITYORDERREQUEST.
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_ICMMDTYORDDOC_STR, 
MANDT TYPE STRING,
CMMDTYORDERREQUESTDOCUMENTUUID TYPE STRING,
COMMODITYORDERREQUESTUUID TYPE STRING,
COMMODITYORDERREQUEST TYPE STRING,
COMMODITYORDERREQUESTDOCUMENT TYPE STRING,
CMMDTYORDREQUESTDOCUMENTITEM TYPE STRING,
CMMDTYORDREQDOCAPPLICATION TYPE STRING,
CMMDTYORDREQUESTDOCUMENTTYPE TYPE STRING,
CMMDTYORDREQDOCCONTRACTTYPE TYPE STRING,
CMMDTYORDREQDOCPRICINGSTATUS TYPE STRING,
CMMDTYORDREQDOCPRICINGLOT TYPE STRING,
CMMDTYORDREQDOCTOFILLQTY TYPE STRING,
CMMDTYORDREQDOCTOFILLQTYUNIT TYPE STRING,
CMMDTYORDREQDOCOPNQUANTITY TYPE STRING,
CMMDTYORDREQDOCOPNQUANTITYUNIT TYPE STRING,
CMMDTYORDREQDOCSQNCOFFILLING TYPE STRING,
CMMDTYORDREQDOCEXTERNALID TYPE STRING,
CMMDTYORDERFILLPRCGUPDTSTATUS TYPE STRING,
CMMDTYORDDOCLOGLRPTGISUPDTD TYPE STRING,
COMMODITYORDERFILLPACKETUUID TYPE STRING,
CMMDTYORDREQDOCPRCGSTATUSTEXT TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICMMDTYORDDOC_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_ICMMDTYORDDOC_STR-MANDT sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDERREQUESTDOCUMENTUUID sy-vline 
WA_ICMMDTYORDDOC_STR-COMMODITYORDERREQUESTUUID sy-vline 
WA_ICMMDTYORDDOC_STR-COMMODITYORDERREQUEST sy-vline 
WA_ICMMDTYORDDOC_STR-COMMODITYORDERREQUESTDOCUMENT sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQUESTDOCUMENTITEM sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCAPPLICATION sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQUESTDOCUMENTTYPE sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCCONTRACTTYPE sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCPRICINGSTATUS sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCPRICINGLOT sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCTOFILLQTY sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCTOFILLQTYUNIT sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCOPNQUANTITY sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCOPNQUANTITYUNIT sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCSQNCOFFILLING sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCEXTERNALID sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDERFILLPRCGUPDTSTATUS sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDDOCLOGLRPTGISUPDTD sy-vline 
WA_ICMMDTYORDDOC_STR-COMMODITYORDERFILLPACKETUUID sy-vline 
WA_ICMMDTYORDDOC_STR-CMMDTYORDREQDOCPRCGSTATUSTEXT sy-vline 
WA_ICMMDTYORDDOC_STR-CREATEDBYUSER sy-vline 
WA_ICMMDTYORDDOC_STR-CREATIONDATETIME sy-vline 
WA_ICMMDTYORDDOC_STR-LASTCHANGEDBYUSER sy-vline 
WA_ICMMDTYORDDOC_STR-LASTCHANGEDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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