ABAP Select data from SAP table CMMFDOR_ORD_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMFDOR_ORD_HEADER
*  INTO TABLE @DATA(IT_CMMFDOR_ORD_HEADER2).
*--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_CMMFDOR_ORD_HEADER INDEX 1 INTO DATA(WA_CMMFDOR_ORD_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMFDOR_ORD_HEADER>-CMMDTYORDREQUESTDOCUMENTTYPE = 1.
<CMMFDOR_ORD_HEADER>-COMMODITYORDREQSTATUSREASON = 1.
<CMMFDOR_ORD_HEADER>-COMMODITYSUBACCOUNT = 1.
<CMMFDOR_ORD_HEADER>-CMMDTYORDERREQUESTFLOWTYPE = 1.
<CMMFDOR_ORD_HEADER>-CMMDTYORDERREQLONGFUTURE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQLONGCOMMODITY, sy-vline,
  WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQLONGDRVTVCONTRSPEC, sy-vline,
  WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQLONGMKTIDCODE, sy-vline,
  WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQLONGMATURITYKEYDTE, sy-vline,
  WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQSHORTFUTURE, sy-vline,
  WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQSHORTCOMMODITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMFDOR_ORD_HEADER 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_CMMFDOR_ORD_HEADER 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_CMMFDOR_ORD_HEADER INTO WA_CMMFDOR_ORD_HEADER.


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

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

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

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

*Conversion exit ALPHA, internal->external for field CMMDTYORDREQCNTRPTYREFACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQCNTRPTYREFACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMFDOR_ORD_HEADER-CMMDTYORDREQCNTRPTYREFACCT.
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_CMMFDOR_ORD_HEADER_STR, 
CMMDTYORDREQUESTDOCUMENTTYPE TYPE STRING,
COMMODITYORDREQSTATUSREASON TYPE STRING,
COMMODITYSUBACCOUNT TYPE STRING,
CMMDTYORDERREQUESTFLOWTYPE TYPE STRING,
CMMDTYORDERREQLONGFUTURE TYPE STRING,
CMMDTYORDREQLONGCOMMODITY TYPE STRING,
CMMDTYORDREQLONGDRVTVCONTRSPEC TYPE STRING,
CMMDTYORDREQLONGMKTIDCODE TYPE STRING,
CMMDTYORDREQLONGMATURITYKEYDTE TYPE STRING,
CMMDTYORDREQSHORTFUTURE TYPE STRING,
CMMDTYORDREQSHORTCOMMODITY TYPE STRING,
CMMDTYORDREQSHRTDRVTVCONTRSPEC TYPE STRING,
CMMDTYORDREQSHRTMKTIDCODE TYPE STRING,
CMMDTYORDREQSHRTMATURITYKEYDTE TYPE STRING,
CMMDTYORDREQUESTQUANTITYINLOT TYPE STRING,
CMMDTYORDREQEXPRTNINSTRUCTION TYPE STRING,
CMMDTYORDREQPRCGEXECINSTRN TYPE STRING,
COUNTERPARTY TYPE STRING,
CMMDTYORDREQCNTRPTYBROKER TYPE STRING,
CMMDTYORDREQCNTRPTYSUBACCT TYPE STRING,
CMMDTYORDREQCNTRPTYREFACCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMFDOR_ORD_HEADER_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_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQUESTDOCUMENTTYPE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-COMMODITYORDREQSTATUSREASON sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-COMMODITYSUBACCOUNT sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDERREQUESTFLOWTYPE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDERREQLONGFUTURE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQLONGCOMMODITY sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQLONGDRVTVCONTRSPEC sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQLONGMKTIDCODE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQLONGMATURITYKEYDTE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQSHORTFUTURE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQSHORTCOMMODITY sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQSHRTDRVTVCONTRSPEC sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQSHRTMKTIDCODE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQSHRTMATURITYKEYDTE sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQUESTQUANTITYINLOT sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQEXPRTNINSTRUCTION sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQPRCGEXECINSTRN sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-COUNTERPARTY sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQCNTRPTYBROKER sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQCNTRPTYSUBACCT sy-vline 
WA_CMMFDOR_ORD_HEADER_STR-CMMDTYORDREQCNTRPTYREFACCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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