ABAP Select data from SAP table VCH_SIM_DRAFT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCH_SIM_DRAFT
*  INTO TABLE @DATA(IT_VCH_SIM_DRAFT2).
*--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_VCH_SIM_DRAFT INDEX 1 INTO DATA(WA_VCH_SIM_DRAFT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCH_SIM_DRAFT>-MANDT = 1.
<VCH_SIM_DRAFT>-DRAFTUUID = 1.
<VCH_SIM_DRAFT>-SIMULATIONUUID = 1.
<VCH_SIM_DRAFT>-BOMEXPLOSIONAPPLICATION = 1.
<VCH_SIM_DRAFT>-LASTCHANGEDBYUSER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCH_SIM_DRAFT-LASTCHANGEDATE, sy-vline,
  WA_VCH_SIM_DRAFT-LASTCHANGETIME, sy-vline,
  WA_VCH_SIM_DRAFT-CONFIGURATIONPROFILECOUNTER, sy-vline,
  WA_VCH_SIM_DRAFT-CREATEDBYUSER, sy-vline,
  WA_VCH_SIM_DRAFT-CREATIONDATE, sy-vline,
  WA_VCH_SIM_DRAFT-CREATIONTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCH_SIM_DRAFT 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_VCH_SIM_DRAFT 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_VCH_SIM_DRAFT INTO WA_VCH_SIM_DRAFT.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VCH_SIM_DRAFT-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCH_SIM_DRAFT-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VCH_SIM_DRAFT-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCH_SIM_DRAFT-BASEUNIT.
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_VCH_SIM_DRAFT_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
SIMULATIONUUID TYPE STRING,
BOMEXPLOSIONAPPLICATION TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
CONFIGURATIONPROFILECOUNTER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
CONFIGURATIONNUMBER TYPE STRING,
NAME TYPE STRING,
PLANT TYPE STRING,
PRODUCT TYPE STRING,
QUANTITY TYPE STRING,
CONFIGURATIONSIMULATIONDATE TYPE STRING,
TEMPLATECONFIGURATIONNUMBER TYPE STRING,
TEMPLATECONFIGUREDOBJECT TYPE STRING,
TEMPLATECONFIGUREDOBJECTITEM TYPE STRING,
TEMPLATECONFIGUREDOBJECTTYPE TYPE STRING,
BASEUNIT TYPE STRING,
CONFIGURATIONTRACEISACTIVE TYPE STRING,
CONFIGURATIONTRACEOWNERHANDLE TYPE STRING,
CONFIGURATIONSTATUS TYPE STRING,
CONFIGNSIMULATIONCONTEXT TYPE STRING,
VARCONFIGNSIMLNEXTERNALID TYPE STRING,
PRODUCTNAME TYPE STRING,
PLANTNAME TYPE STRING,
CREATEDBYUSERDESCRIPTION TYPE STRING,
LASTCHANGEDBYUSERDESCRIPTION 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_VCH_SIM_DRAFT_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_VCH_SIM_DRAFT_STR-MANDT sy-vline 
WA_VCH_SIM_DRAFT_STR-DRAFTUUID sy-vline 
WA_VCH_SIM_DRAFT_STR-SIMULATIONUUID sy-vline 
WA_VCH_SIM_DRAFT_STR-BOMEXPLOSIONAPPLICATION sy-vline 
WA_VCH_SIM_DRAFT_STR-LASTCHANGEDBYUSER sy-vline 
WA_VCH_SIM_DRAFT_STR-LASTCHANGEDATE sy-vline 
WA_VCH_SIM_DRAFT_STR-LASTCHANGETIME sy-vline 
WA_VCH_SIM_DRAFT_STR-CONFIGURATIONPROFILECOUNTER sy-vline 
WA_VCH_SIM_DRAFT_STR-CREATEDBYUSER sy-vline 
WA_VCH_SIM_DRAFT_STR-CREATIONDATE sy-vline 
WA_VCH_SIM_DRAFT_STR-CREATIONTIME sy-vline 
WA_VCH_SIM_DRAFT_STR-CONFIGURATIONNUMBER sy-vline 
WA_VCH_SIM_DRAFT_STR-NAME sy-vline 
WA_VCH_SIM_DRAFT_STR-PLANT sy-vline 
WA_VCH_SIM_DRAFT_STR-PRODUCT sy-vline 
WA_VCH_SIM_DRAFT_STR-QUANTITY sy-vline 
WA_VCH_SIM_DRAFT_STR-CONFIGURATIONSIMULATIONDATE sy-vline 
WA_VCH_SIM_DRAFT_STR-TEMPLATECONFIGURATIONNUMBER sy-vline 
WA_VCH_SIM_DRAFT_STR-TEMPLATECONFIGUREDOBJECT sy-vline 
WA_VCH_SIM_DRAFT_STR-TEMPLATECONFIGUREDOBJECTITEM sy-vline 
WA_VCH_SIM_DRAFT_STR-TEMPLATECONFIGUREDOBJECTTYPE sy-vline 
WA_VCH_SIM_DRAFT_STR-BASEUNIT sy-vline 
WA_VCH_SIM_DRAFT_STR-CONFIGURATIONTRACEISACTIVE sy-vline 
WA_VCH_SIM_DRAFT_STR-CONFIGURATIONTRACEOWNERHANDLE sy-vline 
WA_VCH_SIM_DRAFT_STR-CONFIGURATIONSTATUS sy-vline 
WA_VCH_SIM_DRAFT_STR-CONFIGNSIMULATIONCONTEXT sy-vline 
WA_VCH_SIM_DRAFT_STR-VARCONFIGNSIMLNEXTERNALID sy-vline 
WA_VCH_SIM_DRAFT_STR-PRODUCTNAME sy-vline 
WA_VCH_SIM_DRAFT_STR-PLANTNAME sy-vline 
WA_VCH_SIM_DRAFT_STR-CREATEDBYUSERDESCRIPTION sy-vline 
WA_VCH_SIM_DRAFT_STR-LASTCHANGEDBYUSERDESCRIPTION sy-vline 
WA_VCH_SIM_DRAFT_STR-HASACTIVEENTITY sy-vline 
WA_VCH_SIM_DRAFT_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_VCH_SIM_DRAFT_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_VCH_SIM_DRAFT_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_VCH_SIM_DRAFT_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_VCH_SIM_DRAFT_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.