ABAP Select data from SAP table VDFS_SCENARIO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDFS_SCENARIO
*  INTO TABLE @DATA(IT_VDFS_SCENARIO2).
*--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_VDFS_SCENARIO INDEX 1 INTO DATA(WA_VDFS_SCENARIO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDFS_SCENARIO>-MANDT = 1.
<VDFS_SCENARIO>-DFSSCENARIOUUID = 1.
<VDFS_SCENARIO>-DFSSCENARIOID = 1.
<VDFS_SCENARIO>-DFSSCENARIOSHORTNAME = 1.
<VDFS_SCENARIO>-DFSSCENARIONAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDFS_SCENARIO-DFSSCENARIODESC, sy-vline,
  WA_VDFS_SCENARIO-DFSSCENARIOVALIDITYSTARTDATE, sy-vline,
  WA_VDFS_SCENARIO-DFSSCENARIOVALIDITYENDDATE, sy-vline,
  WA_VDFS_SCENARIO-DFSDIRECTIVEID, sy-vline,
  WA_VDFS_SCENARIO-DFSSCENARIOSTATUSOBJECTID, sy-vline,
  WA_VDFS_SCENARIO-DFSSCENARIOSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDFS_SCENARIO 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_VDFS_SCENARIO 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_VDFS_SCENARIO INTO WA_VDFS_SCENARIO.


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

*Conversion exit ALPHA, internal->external for field DFSSCENARIOOWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDFS_SCENARIO-DFSSCENARIOOWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDFS_SCENARIO-DFSSCENARIOOWNER.
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_VDFS_SCENARIO_STR, 
MANDT TYPE STRING,
DFSSCENARIOUUID TYPE STRING,
DFSSCENARIOID TYPE STRING,
DFSSCENARIOSHORTNAME TYPE STRING,
DFSSCENARIONAME TYPE STRING,
DFSSCENARIODESC TYPE STRING,
DFSSCENARIOVALIDITYSTARTDATE TYPE STRING,
DFSSCENARIOVALIDITYENDDATE TYPE STRING,
DFSDIRECTIVEID TYPE STRING,
DFSSCENARIOSTATUSOBJECTID TYPE STRING,
DFSSCENARIOSTATUS TYPE STRING,
DFSSCENARIOOWNER TYPE STRING,
DFSSCENARIOTYPE TYPE STRING,
DFSSCENARIOCREATIONDTETME TYPE STRING,
DFSSCENARIOCREATEDBYUSER TYPE STRING,
DFSSCENARIOLASTCHGDDTETME TYPE STRING,
DFSSCENARIOLASTCHGDBYUSER TYPE STRING,
DUMMY_DFS_SCENARIO_INCL_EEW_PS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDFS_SCENARIO_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_VDFS_SCENARIO_STR-MANDT sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOUUID sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOID sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOSHORTNAME sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIONAME sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIODESC sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOVALIDITYSTARTDATE sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOVALIDITYENDDATE sy-vline 
WA_VDFS_SCENARIO_STR-DFSDIRECTIVEID sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOSTATUSOBJECTID sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOSTATUS sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOOWNER sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOTYPE sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOCREATIONDTETME sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOCREATEDBYUSER sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOLASTCHGDDTETME sy-vline 
WA_VDFS_SCENARIO_STR-DFSSCENARIOLASTCHGDBYUSER sy-vline 
WA_VDFS_SCENARIO_STR-DUMMY_DFS_SCENARIO_INCL_EEW_PS sy-vline 
WA_VDFS_SCENARIO_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.