ABAP Select data from SAP table DFS_FE_STRUC_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFS_FE_STRUC_D
*  INTO TABLE @DATA(IT_DFS_FE_STRUC_D2).
*--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_DFS_FE_STRUC_D INDEX 1 INTO DATA(WA_DFS_FE_STRUC_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFS_FE_STRUC_D>-MANDT = 1.
<DFS_FE_STRUC_D>-DRAFTUUID = 1.
<DFS_FE_STRUC_D>-FRCELMNTORGCONCATENATEDID = 1.
<DFS_FE_STRUC_D>-FRCELMNTORGRELATEDORGID = 1.
<DFS_FE_STRUC_D>-FRCELMNTORGVALDTYSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFS_FE_STRUC_D-FRCELMNTORGVALDTYENDDATE, sy-vline,
  WA_DFS_FE_STRUC_D-FRCELMNTORGPLNGSTATUS, sy-vline,
  WA_DFS_FE_STRUC_D-FRCELMNTORGDRAFTUUID, sy-vline,
  WA_DFS_FE_STRUC_D-FORCEELEMENTORGID, sy-vline,
  WA_DFS_FE_STRUC_D-FRCELMNTORGNAME, sy-vline,
  WA_DFS_FE_STRUC_D-FRCELMNTORGPLANVERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFS_FE_STRUC_D 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_DFS_FE_STRUC_D 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_DFS_FE_STRUC_D INTO WA_DFS_FE_STRUC_D.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DFS_FE_STRUC_D_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
FRCELMNTORGCONCATENATEDID TYPE STRING,
FRCELMNTORGRELATEDORGID TYPE STRING,
FRCELMNTORGVALDTYSTARTDATE TYPE STRING,
FRCELMNTORGVALDTYENDDATE TYPE STRING,
FRCELMNTORGPLNGSTATUS TYPE STRING,
FRCELMNTORGDRAFTUUID TYPE STRING,
FORCEELEMENTORGID TYPE STRING,
FRCELMNTORGNAME TYPE STRING,
FRCELMNTORGPLANVERSION TYPE STRING,
FRCELMNTORGPLNGSTATUSFOED TYPE STRING,
FRCELMNTORGRELSHPSPEC TYPE STRING,
FRCELMNTORGRELSHPBTWNOBJ TYPE STRING,
FRCELMNTORGRELSHPPRIORITY TYPE STRING,
FRCELMNTORGTYPE TYPE STRING,
NUMBEROFFORCEELEMENTORG TYPE STRING,
FRCELMNTORGINFOTYPE TYPE STRING,
FRCELMNTORGSUBTYPE TYPE STRING,
FRCELMNTORGRELATEDORGTYPE TYPE STRING,
FRCELMNTORGRELSHPDESC TYPE STRING,
FRCELMNTORGCNCTNTDRELSHPTEXT TYPE STRING,
FRCELMNTORGLASTCHGDBYUSERNAME TYPE STRING,
FORCEELEMENTORGIDFOREDIT TYPE STRING,
FRCELMNTORGRELATEDORGIDFOREDIT TYPE STRING,
FRCELMNTORGVALDTYSTARTDATEFOED TYPE STRING,
FRCELMNTORGVALDTYENDDATEFOED TYPE STRING,
FRCELMNTORGPLNGSTATUSFOREDIT TYPE STRING,
FRCELMNTORGTECHNICALSTATUSNAME TYPE STRING,
CRITICALITY TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFS_FE_STRUC_D_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_DFS_FE_STRUC_D_STR-MANDT sy-vline 
WA_DFS_FE_STRUC_D_STR-DRAFTUUID sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGCONCATENATEDID sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGRELATEDORGID sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGVALDTYSTARTDATE sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGVALDTYENDDATE sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGPLNGSTATUS sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGDRAFTUUID sy-vline 
WA_DFS_FE_STRUC_D_STR-FORCEELEMENTORGID sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGNAME sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGPLANVERSION sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGPLNGSTATUSFOED sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGRELSHPSPEC sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGRELSHPBTWNOBJ sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGRELSHPPRIORITY sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGTYPE sy-vline 
WA_DFS_FE_STRUC_D_STR-NUMBEROFFORCEELEMENTORG sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGINFOTYPE sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGSUBTYPE sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGRELATEDORGTYPE sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGRELSHPDESC sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGCNCTNTDRELSHPTEXT sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGLASTCHGDBYUSERNAME sy-vline 
WA_DFS_FE_STRUC_D_STR-FORCEELEMENTORGIDFOREDIT sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGRELATEDORGIDFOREDIT sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGVALDTYSTARTDATEFOED sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGVALDTYENDDATEFOED sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGPLNGSTATUSFOREDIT sy-vline 
WA_DFS_FE_STRUC_D_STR-FRCELMNTORGTECHNICALSTATUSNAME sy-vline 
WA_DFS_FE_STRUC_D_STR-CRITICALITY sy-vline 
WA_DFS_FE_STRUC_D_STR-HASACTIVEENTITY sy-vline 
WA_DFS_FE_STRUC_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_DFS_FE_STRUC_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_DFS_FE_STRUC_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_DFS_FE_STRUC_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_DFS_FE_STRUC_D_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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