ABAP Select data from SAP table DFS_SCEN_TASKREL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFS_SCEN_TASKREL 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_SCEN_TASKREL. 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_SCEN_TASKREL 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_SCEN_TASKREL TYPE STANDARD TABLE OF DFS_SCEN_TASKREL,
      WA_DFS_SCEN_TASKREL TYPE DFS_SCEN_TASKREL,
      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_SCEN_TASKREL> TYPE DFS_SCEN_TASKREL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFS_SCEN_TASKREL
*  INTO TABLE @DATA(IT_DFS_SCEN_TASKREL2).
*--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_SCEN_TASKREL INDEX 1 INTO DATA(WA_DFS_SCEN_TASKREL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFS_SCEN_TASKREL>-MANDT = 1.
<DFS_SCEN_TASKREL>-DFSSCENARIOALTVTASKRELSHPUUID = 1.
<DFS_SCEN_TASKREL>-DFSSCENARIOALTVTASKUUID = 1.
<DFS_SCEN_TASKREL>-DFSSCENARIOALTVUUID = 1.
<DFS_SCEN_TASKREL>-DFSSCENARIOUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFS_SCEN_TASKREL-DFSSCENARIOALTVTASKRELSHPTYPE, sy-vline,
  WA_DFS_SCEN_TASKREL-DFSCAPABILITYOBJECTUUID, sy-vline,
  WA_DFS_SCEN_TASKREL-DFSCAPABILITYOBJECTID, sy-vline,
  WA_DFS_SCEN_TASKREL-FORCEELEMENTORGUUID, sy-vline,
  WA_DFS_SCEN_TASKREL-FORCEELEMENTORGID, sy-vline,
  WA_DFS_SCEN_TASKREL-FLXBLMATLPLNGOBJECTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFS_SCEN_TASKREL 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_SCEN_TASKREL 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_SCEN_TASKREL INTO WA_DFS_SCEN_TASKREL.


*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 DFSCAPABILITYOBJECTID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFS_SCEN_TASKREL-DFSCAPABILITYOBJECTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFS_SCEN_TASKREL-DFSCAPABILITYOBJECTID.
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_DFS_SCEN_TASKREL_STR, 
MANDT TYPE STRING,
DFSSCENARIOALTVTASKRELSHPUUID TYPE STRING,
DFSSCENARIOALTVTASKUUID TYPE STRING,
DFSSCENARIOALTVUUID TYPE STRING,
DFSSCENARIOUUID TYPE STRING,
DFSSCENARIOALTVTASKRELSHPTYPE TYPE STRING,
DFSCAPABILITYOBJECTUUID TYPE STRING,
DFSCAPABILITYOBJECTID TYPE STRING,
FORCEELEMENTORGUUID TYPE STRING,
FORCEELEMENTORGID TYPE STRING,
FLXBLMATLPLNGOBJECTID TYPE STRING,
FLXBLMATLPLNGOBJVARIANTID TYPE STRING,
DFSASSGMTNMBROFASSGDMATL TYPE STRING,
DFSSCENALTVTSKRELSHPCRTNDTETME TYPE STRING,
DFSSCENALTVTSKRELSHPCRTEDBYUSR TYPE STRING,
DFSSCENTSKRELSHPLASTCHGDDTETME TYPE STRING,
DFSSCENTASKRELSHPLASTCHGDBYUSR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFS_SCEN_TASKREL_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_SCEN_TASKREL_STR-MANDT sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENARIOALTVTASKRELSHPUUID sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENARIOALTVTASKUUID sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENARIOALTVUUID sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENARIOUUID sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENARIOALTVTASKRELSHPTYPE sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSCAPABILITYOBJECTUUID sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSCAPABILITYOBJECTID sy-vline 
WA_DFS_SCEN_TASKREL_STR-FORCEELEMENTORGUUID sy-vline 
WA_DFS_SCEN_TASKREL_STR-FORCEELEMENTORGID sy-vline 
WA_DFS_SCEN_TASKREL_STR-FLXBLMATLPLNGOBJECTID sy-vline 
WA_DFS_SCEN_TASKREL_STR-FLXBLMATLPLNGOBJVARIANTID sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSASSGMTNMBROFASSGDMATL sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENALTVTSKRELSHPCRTNDTETME sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENALTVTSKRELSHPCRTEDBYUSR sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENTSKRELSHPLASTCHGDDTETME sy-vline 
WA_DFS_SCEN_TASKREL_STR-DFSSCENTASKRELSHPLASTCHGDBYUSR sy-vline      INTO ld_text SEPARATED BY SPACE.

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