ABAP Select data from SAP table ICMMDTYCNTRSUB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICMMDTYCNTRSUB
*  INTO TABLE @DATA(IT_ICMMDTYCNTRSUB2).
*--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_ICMMDTYCNTRSUB INDEX 1 INTO DATA(WA_ICMMDTYCNTRSUB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICMMDTYCNTRSUB>-MANDT = 1.
<ICMMDTYCNTRSUB>-COUNTERPARTY = 1.
<ICMMDTYCNTRSUB>-COMMODITYSUBACCOUNT = 1.
<ICMMDTYCNTRSUB>-COMMODITYSUBACCOUNTUUID = 1.
<ICMMDTYCNTRSUB>-COMMODITYSUBACCOUNTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICMMDTYCNTRSUB-CMMDTYSUBACCOUNTISOFFFOOTPRINT, sy-vline,
  WA_ICMMDTYCNTRSUB-COMMODITY, sy-vline,
  WA_ICMMDTYCNTRSUB-COMMODITYNAME, sy-vline,
  WA_ICMMDTYCNTRSUB-MARKETIDENTIFIERCODE, sy-vline,
  WA_ICMMDTYCNTRSUB-MARKETIDENTIFIERCODENAME, sy-vline,
  WA_ICMMDTYCNTRSUB-DERIVATIVECONTRSPECIFICATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICMMDTYCNTRSUB 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_ICMMDTYCNTRSUB 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_ICMMDTYCNTRSUB INTO WA_ICMMDTYCNTRSUB.


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

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

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

*Conversion exit ALPHA, internal->external for field REFERENCEBROKERACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMMDTYCNTRSUB-REFERENCEBROKERACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMMDTYCNTRSUB-REFERENCEBROKERACCOUNT.
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_ICMMDTYCNTRSUB_STR, 
MANDT TYPE STRING,
COUNTERPARTY TYPE STRING,
COMMODITYSUBACCOUNT TYPE STRING,
COMMODITYSUBACCOUNTUUID TYPE STRING,
COMMODITYSUBACCOUNTNAME TYPE STRING,
CMMDTYSUBACCOUNTISOFFFOOTPRINT TYPE STRING,
COMMODITY TYPE STRING,
COMMODITYNAME TYPE STRING,
MARKETIDENTIFIERCODE TYPE STRING,
MARKETIDENTIFIERCODENAME TYPE STRING,
DERIVATIVECONTRSPECIFICATION TYPE STRING,
DERIVATIVECONTRSPECNAME TYPE STRING,
COMMODITYDERIVATIVEBROKER TYPE STRING,
BUSINESSPARTNERFULLNAME TYPE STRING,
COMPANYCODE TYPE STRING,
REFERENCEBROKERACCOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICMMDTYCNTRSUB_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_ICMMDTYCNTRSUB_STR-MANDT sy-vline 
WA_ICMMDTYCNTRSUB_STR-COUNTERPARTY sy-vline 
WA_ICMMDTYCNTRSUB_STR-COMMODITYSUBACCOUNT sy-vline 
WA_ICMMDTYCNTRSUB_STR-COMMODITYSUBACCOUNTUUID sy-vline 
WA_ICMMDTYCNTRSUB_STR-COMMODITYSUBACCOUNTNAME sy-vline 
WA_ICMMDTYCNTRSUB_STR-CMMDTYSUBACCOUNTISOFFFOOTPRINT sy-vline 
WA_ICMMDTYCNTRSUB_STR-COMMODITY sy-vline 
WA_ICMMDTYCNTRSUB_STR-COMMODITYNAME sy-vline 
WA_ICMMDTYCNTRSUB_STR-MARKETIDENTIFIERCODE sy-vline 
WA_ICMMDTYCNTRSUB_STR-MARKETIDENTIFIERCODENAME sy-vline 
WA_ICMMDTYCNTRSUB_STR-DERIVATIVECONTRSPECIFICATION sy-vline 
WA_ICMMDTYCNTRSUB_STR-DERIVATIVECONTRSPECNAME sy-vline 
WA_ICMMDTYCNTRSUB_STR-COMMODITYDERIVATIVEBROKER sy-vline 
WA_ICMMDTYCNTRSUB_STR-BUSINESSPARTNERFULLNAME sy-vline 
WA_ICMMDTYCNTRSUB_STR-COMPANYCODE sy-vline 
WA_ICMMDTYCNTRSUB_STR-REFERENCEBROKERACCOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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