ABAP Select data from SAP table V_COMPDIR_ELTDIR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_COMPDIR_ELTDIR
*  INTO TABLE @DATA(IT_V_COMPDIR_ELTDIR2).
*--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_V_COMPDIR_ELTDIR INDEX 1 INTO DATA(WA_V_COMPDIR_ELTDIR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_COMPDIR_ELTDIR>-COMPUID = 1.
<V_COMPDIR_ELTDIR>-OBJVERS = 1.
<V_COMPDIR_ELTDIR>-COMPID = 1.
<V_COMPDIR_ELTDIR>-VERSION = 1.
<V_COMPDIR_ELTDIR>-COMPDIM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_COMPDIR_ELTDIR-OBJSTAT, sy-vline,
  WA_V_COMPDIR_ELTDIR-CONTREL, sy-vline,
  WA_V_COMPDIR_ELTDIR-CONTTIMESTMP, sy-vline,
  WA_V_COMPDIR_ELTDIR-OWNER, sy-vline,
  WA_V_COMPDIR_ELTDIR-ACTIVFL, sy-vline,
  WA_V_COMPDIR_ELTDIR-BWAPPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_COMPDIR_ELTDIR 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_V_COMPDIR_ELTDIR 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_V_COMPDIR_ELTDIR INTO WA_V_COMPDIR_ELTDIR.


*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_V_COMPDIR_ELTDIR_STR, 
COMPUID TYPE STRING,
OBJVERS TYPE STRING,
COMPID TYPE STRING,
VERSION TYPE STRING,
COMPDIM TYPE STRING,
OBJSTAT TYPE STRING,
CONTREL TYPE STRING,
CONTTIMESTMP TYPE STRING,
OWNER TYPE STRING,
ACTIVFL TYPE STRING,
BWAPPL TYPE STRING,
TIMESTMP TYPE STRING,
TSTPNM TYPE STRING,
TSTPDAT TYPE STRING,
TSTPTIM TYPE STRING,
DEFTP TYPE STRING,
REUSABLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_COMPDIR_ELTDIR_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_V_COMPDIR_ELTDIR_STR-COMPUID sy-vline 
WA_V_COMPDIR_ELTDIR_STR-OBJVERS sy-vline 
WA_V_COMPDIR_ELTDIR_STR-COMPID sy-vline 
WA_V_COMPDIR_ELTDIR_STR-VERSION sy-vline 
WA_V_COMPDIR_ELTDIR_STR-COMPDIM sy-vline 
WA_V_COMPDIR_ELTDIR_STR-OBJSTAT sy-vline 
WA_V_COMPDIR_ELTDIR_STR-CONTREL sy-vline 
WA_V_COMPDIR_ELTDIR_STR-CONTTIMESTMP sy-vline 
WA_V_COMPDIR_ELTDIR_STR-OWNER sy-vline 
WA_V_COMPDIR_ELTDIR_STR-ACTIVFL sy-vline 
WA_V_COMPDIR_ELTDIR_STR-BWAPPL sy-vline 
WA_V_COMPDIR_ELTDIR_STR-TIMESTMP sy-vline 
WA_V_COMPDIR_ELTDIR_STR-TSTPNM sy-vline 
WA_V_COMPDIR_ELTDIR_STR-TSTPDAT sy-vline 
WA_V_COMPDIR_ELTDIR_STR-TSTPTIM sy-vline 
WA_V_COMPDIR_ELTDIR_STR-DEFTP sy-vline 
WA_V_COMPDIR_ELTDIR_STR-REUSABLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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