ABAP Select data from SAP table V_TZZKDD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TZZKDD 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_TZZKDD. 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_TZZKDD 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_TZZKDD TYPE STANDARD TABLE OF V_TZZKDD,
      WA_V_TZZKDD TYPE V_TZZKDD,
      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_TZZKDD> TYPE V_TZZKDD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TZZKDD
*  INTO TABLE @DATA(IT_V_TZZKDD2).
*--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_TZZKDD INDEX 1 INTO DATA(WA_V_TZZKDD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TZZKDD>-MANDT = 1.
<V_TZZKDD>-RANTYP = 1.
<V_TZZKDD>-KORRVORF = 1.
<V_TZZKDD>-LFDNR = 1.
<V_TZZKDD>-ROLE_CORR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TZZKDD-ROLE_CORR_ORIG, sy-vline,
  WA_V_TZZKDD-ROLETYP_ZGP, sy-vline,
  WA_V_TZZKDD-ROLETYPEMP_ZGP, sy-vline,
  WA_V_TZZKDD-BRFNM, sy-vline,
  WA_V_TZZKDD-XKORRVORF, sy-vline,
  WA_V_TZZKDD-APPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TZZKDD 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_TZZKDD 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_TZZKDD INTO WA_V_TZZKDD.


*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 SPDEV, internal->external for field TDDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_V_TZZKDD-TDDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TZZKDD-TDDEST.
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_V_TZZKDD_STR, 
MANDT TYPE STRING,
RANTYP TYPE STRING,
KORRVORF TYPE STRING,
LFDNR TYPE STRING,
ROLE_CORR TYPE STRING,
ROLE_CORR_ORIG TYPE STRING,
ROLETYP_ZGP TYPE STRING,
ROLETYPEMP_ZGP TYPE STRING,
BRFNM TYPE STRING,
XKORRVORF TYPE STRING,
APPL TYPE STRING,
SUBANWDG TYPE STRING,
XBRFBS TYPE STRING,
BZTYP_ZGP TYPE STRING,
SKZA TYPE STRING,
AUSWAHL TYPE STRING,
TDCOPIES TYPE STRING,
TDDEST TYPE STRING,
TDPREVIEW TYPE STRING,
TDNEWID TYPE STRING,
TDIMMED TYPE STRING,
TDDELETE TYPE STRING,
VLISTE TYPE STRING,
ROLE_ORIG TYPE STRING,
SAKTPAS TYPE STRING,
ROLE TYPE STRING,
ROLETYP_ORIG_ZGP TYPE STRING,
RLTITL_RECVR TYPE STRING,
RLTITL_ORIG TYPE STRING,
RLTITL_EMPL TYPE STRING,
XROLE_CORR TYPE STRING,
XROLE_CORR_ORIG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TZZKDD_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_TZZKDD_STR-MANDT sy-vline 
WA_V_TZZKDD_STR-RANTYP sy-vline 
WA_V_TZZKDD_STR-KORRVORF sy-vline 
WA_V_TZZKDD_STR-LFDNR sy-vline 
WA_V_TZZKDD_STR-ROLE_CORR sy-vline 
WA_V_TZZKDD_STR-ROLE_CORR_ORIG sy-vline 
WA_V_TZZKDD_STR-ROLETYP_ZGP sy-vline 
WA_V_TZZKDD_STR-ROLETYPEMP_ZGP sy-vline 
WA_V_TZZKDD_STR-BRFNM sy-vline 
WA_V_TZZKDD_STR-XKORRVORF sy-vline 
WA_V_TZZKDD_STR-APPL sy-vline 
WA_V_TZZKDD_STR-SUBANWDG sy-vline 
WA_V_TZZKDD_STR-XBRFBS sy-vline 
WA_V_TZZKDD_STR-BZTYP_ZGP sy-vline 
WA_V_TZZKDD_STR-SKZA sy-vline 
WA_V_TZZKDD_STR-AUSWAHL sy-vline 
WA_V_TZZKDD_STR-TDCOPIES sy-vline 
WA_V_TZZKDD_STR-TDDEST sy-vline 
WA_V_TZZKDD_STR-TDPREVIEW sy-vline 
WA_V_TZZKDD_STR-TDNEWID sy-vline 
WA_V_TZZKDD_STR-TDIMMED sy-vline 
WA_V_TZZKDD_STR-TDDELETE sy-vline 
WA_V_TZZKDD_STR-VLISTE sy-vline 
WA_V_TZZKDD_STR-ROLE_ORIG sy-vline 
WA_V_TZZKDD_STR-SAKTPAS sy-vline 
WA_V_TZZKDD_STR-ROLE sy-vline 
WA_V_TZZKDD_STR-ROLETYP_ORIG_ZGP sy-vline 
WA_V_TZZKDD_STR-RLTITL_RECVR sy-vline 
WA_V_TZZKDD_STR-RLTITL_ORIG sy-vline 
WA_V_TZZKDD_STR-RLTITL_EMPL sy-vline 
WA_V_TZZKDD_STR-XROLE_CORR sy-vline 
WA_V_TZZKDD_STR-XROLE_CORR_ORIG sy-vline      INTO ld_text SEPARATED BY SPACE.

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