ABAP Select data from SAP table CDOEHFNDW_TDEF_ROOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDOEHFNDW_TDEF_ROOT
*  INTO TABLE @DATA(IT_CDOEHFNDW_TDEF_ROOT2).
*--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_CDOEHFNDW_TDEF_ROOT INDEX 1 INTO DATA(WA_CDOEHFNDW_TDEF_ROOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDOEHFNDW_TDEF_ROOT>-MANDT = 1.
<CDOEHFNDW_TDEF_ROOT>-EHSTASKDEFINITIONUUID = 1.
<CDOEHFNDW_TDEF_ROOT>-CREATIONUTCDATETIME = 1.
<CDOEHFNDW_TDEF_ROOT>-CREATEDBYUSER = 1.
<CDOEHFNDW_TDEF_ROOT>-LASTCHANGEUTCDATETIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDOEHFNDW_TDEF_ROOT-LASTCHANGEDBYUSER, sy-vline,
  WA_CDOEHFNDW_TDEF_ROOT-EHSTASKHOSTOBJECTINSTANCEUUID, sy-vline,
  WA_CDOEHFNDW_TDEF_ROOT-EHSTASKHOSTOBJECTINSTANCE, sy-vline,
  WA_CDOEHFNDW_TDEF_ROOT-EHSTASKHOSTOBJECTADAPTERCLASS, sy-vline,
  WA_CDOEHFNDW_TDEF_ROOT-EHSTASKWORKFLOWEVENT, sy-vline,
  WA_CDOEHFNDW_TDEF_ROOT-EHSTASKPRIORITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDOEHFNDW_TDEF_ROOT 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_CDOEHFNDW_TDEF_ROOT 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_CDOEHFNDW_TDEF_ROOT INTO WA_CDOEHFNDW_TDEF_ROOT.


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

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

*Conversion exit ALPHA, internal->external for field EHSTASKAPPROVINGUSER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDOEHFNDW_TDEF_ROOT-EHSTASKAPPROVINGUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDOEHFNDW_TDEF_ROOT-EHSTASKAPPROVINGUSER.
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_CDOEHFNDW_TDEF_ROOT_STR, 
MANDT TYPE STRING,
EHSTASKDEFINITIONUUID TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEUTCDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
EHSTASKHOSTOBJECTINSTANCEUUID TYPE STRING,
EHSTASKHOSTOBJECTINSTANCE TYPE STRING,
EHSTASKHOSTOBJECTADAPTERCLASS TYPE STRING,
EHSTASKWORKFLOWEVENT TYPE STRING,
EHSTASKPRIORITY TYPE STRING,
EHSTASKASSIGNEDUSER TYPE STRING,
EHSTASKOWNERUSER TYPE STRING,
EHSTASKAPPROVINGUSER TYPE STRING,
EHSTASKDEFINITIONSTATUS TYPE STRING,
EHSTASKTITLE TYPE STRING,
EHSTASKDESCRIPTION TYPE STRING,
EHSLOCATIONUUID TYPE STRING,
EHSTASKSTARTDATE TYPE STRING,
EHSTASKDUEINVALUE TYPE STRING,
EHSTASKDUEINUNIT TYPE STRING,
EHSTASKDUEDATE TYPE STRING,
EHSTASKISDUEONSAMEDAY TYPE STRING,
EHSTASKSTARTBEFOREVALUE TYPE STRING,
EHSTASKSTARTBEFOREUNIT TYPE STRING,
EHSTASKRECURRENCEISBYDUEDATE TYPE STRING,
EHSTASKRECURRENCETYPE TYPE STRING,
EHSTASKRECURRENCEINTERVAL TYPE STRING,
EHSTASKISRECURRINGONMONDAY TYPE STRING,
EHSTASKISRECURRINGONTUESDAY TYPE STRING,
EHSTASKISRECURRINGONWEDNESDAY TYPE STRING,
EHSTASKISRECURRINGONTHURSDAY TYPE STRING,
EHSTASKISRECURRINGONFRIDAY TYPE STRING,
EHSTASKISRECURRINGONSATURDAY TYPE STRING,
EHSTASKISRECURRINGONSUNDAY TYPE STRING,
EHSTASKRECURRENCEDAY TYPE STRING,
EHSTASKRECURRENCEMONTH TYPE STRING,
EHSTASKRECURRENCEOFFSET TYPE STRING,
EHSTASKRECURRENCEWEEKDAY TYPE STRING,
EHSTASKRECURRENCEENDTYPE TYPE STRING,
EHSTASKRECURRENCEENDDATE TYPE STRING,
EHSTASKRECURRENCEFIRSTDUEDATE TYPE STRING,
EHSTASKDEFINITIONISPAUSED TYPE STRING,
EHSTASKID TYPE STRING,
EHSTASKMIGRATIONSOURCE TYPE STRING,
EHSTASKASSIGNEDTYPE TYPE STRING,
EHSTASKASSIGNEDLOCROLE TYPE STRING,
EHSTASKAPPROVERTYPE TYPE STRING,
EHSTASKAPPROVERLOCROLE TYPE STRING,
EHSTASKDEFINITIONMANAGEACTION TYPE STRING,
EHSTASKINSTANCEDISPLAYACTION TYPE STRING,
EHSTASKISENABLEDFORREFERENCING TYPE STRING,
INCIDENTHASACCESSRESTRICTION TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
DUMMY_EHFND_TDEFRT_INCL_EEW_PS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDOEHFNDW_TDEF_ROOT_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_CDOEHFNDW_TDEF_ROOT_STR-MANDT sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDEFINITIONUUID sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-CREATIONUTCDATETIME sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-CREATEDBYUSER sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-LASTCHANGEUTCDATETIME sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-LASTCHANGEDBYUSER sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKHOSTOBJECTINSTANCEUUID sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKHOSTOBJECTINSTANCE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKHOSTOBJECTADAPTERCLASS sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKWORKFLOWEVENT sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKPRIORITY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKASSIGNEDUSER sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKOWNERUSER sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKAPPROVINGUSER sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDEFINITIONSTATUS sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKTITLE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDESCRIPTION sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSLOCATIONUUID sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKSTARTDATE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDUEINVALUE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDUEINUNIT sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDUEDATE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISDUEONSAMEDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKSTARTBEFOREVALUE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKSTARTBEFOREUNIT sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEISBYDUEDATE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCETYPE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEINTERVAL sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISRECURRINGONMONDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISRECURRINGONTUESDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISRECURRINGONWEDNESDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISRECURRINGONTHURSDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISRECURRINGONFRIDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISRECURRINGONSATURDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISRECURRINGONSUNDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEMONTH sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEOFFSET sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEWEEKDAY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEENDTYPE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEENDDATE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKRECURRENCEFIRSTDUEDATE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDEFINITIONISPAUSED sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKID sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKMIGRATIONSOURCE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKASSIGNEDTYPE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKASSIGNEDLOCROLE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKAPPROVERTYPE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKAPPROVERLOCROLE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKDEFINITIONMANAGEACTION sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKINSTANCEDISPLAYACTION sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-EHSTASKISENABLEDFORREFERENCING sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-INCIDENTHASACCESSRESTRICTION sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-ACTIVEUUID sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-HASACTIVEENTITY sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-DUMMY_EHFND_TDEFRT_INCL_EEW_PS sy-vline 
WA_CDOEHFNDW_TDEF_ROOT_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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