ABAP Select data from SAP table VZKOPF 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 VZKOPF 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 VZKOPF. 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 VZKOPF 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_VZKOPF TYPE STANDARD TABLE OF VZKOPF,
      WA_VZKOPF TYPE VZKOPF,
      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: <VZKOPF> TYPE VZKOPF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VZKOPF
*  INTO TABLE @DATA(IT_VZKOPF2).
*--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_VZKOPF INDEX 1 INTO DATA(WA_VZKOPF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VZKOPF>-MANDT = 1.
<VZKOPF>-RANTYP = 1.
<VZKOPF>-BUKRS = 1.
<VZKOPF>-RANLVD = 1.
<VZKOPF>-RANL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VZKOPF-RFHA, sy-vline,
  WA_VZKOPF-RPORTB, sy-vline,
  WA_VZKOPF-RLDEPO, sy-vline,
  WA_VZKOPF-SANLF, sy-vline,
  WA_VZKOPF-SGSART, sy-vline,
  WA_VZKOPF-ZUONR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VZKOPF 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_VZKOPF 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_VZKOPF INTO WA_VZKOPF.


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

*Conversion exit ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VZKOPF-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VZKOPF-RANL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RFHA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VZKOPF-RFHA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VZKOPF-RFHA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VZKOPF-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VZKOPF-PARTNR.
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_VZKOPF_STR, 
MANDT TYPE STRING,
RANTYP TYPE STRING,
BUKRS TYPE STRING,
RANLVD TYPE STRING,
RANL TYPE STRING,
RFHA TYPE STRING,
RPORTB TYPE STRING,
RLDEPO TYPE STRING,
SANLF TYPE STRING,
SGSART TYPE STRING,
ZUONR TYPE STRING,
ZUOND TYPE STRING,
REFER TYPE STRING,
MERKM TYPE STRING,
PARTNR TYPE STRING,
SBILK TYPE STRING,
SGLZB TYPE STRING,
DBLFZ TYPE STRING,
DELFZ TYPE STRING,
STILGART TYPE STRING,
SZINSTYP TYPE STRING,
PKOND TYPE STRING,
SZSREF TYPE STRING,
SNOTTYPE TYPE STRING,
SFHAART TYPE STRING,
SFGTYP TYPE STRING,
RREFKONT TYPE STRING,
SFGZUSTT TYPE STRING,
SBWHR TYPE STRING,
WGSCHFT1 TYPE STRING,
WGSCHFT2 TYPE STRING,
KKURS TYPE STRING,
DEFSZ TYPE STRING,
BZUSAGE TYPE STRING,
SOFTYP TYPE STRING,
SAKTIV TYPE STRING,
RDEALER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VZKOPF_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_VZKOPF_STR-MANDT sy-vline 
WA_VZKOPF_STR-RANTYP sy-vline 
WA_VZKOPF_STR-BUKRS sy-vline 
WA_VZKOPF_STR-RANLVD sy-vline 
WA_VZKOPF_STR-RANL sy-vline 
WA_VZKOPF_STR-RFHA sy-vline 
WA_VZKOPF_STR-RPORTB sy-vline 
WA_VZKOPF_STR-RLDEPO sy-vline 
WA_VZKOPF_STR-SANLF sy-vline 
WA_VZKOPF_STR-SGSART sy-vline 
WA_VZKOPF_STR-ZUONR sy-vline 
WA_VZKOPF_STR-ZUOND sy-vline 
WA_VZKOPF_STR-REFER sy-vline 
WA_VZKOPF_STR-MERKM sy-vline 
WA_VZKOPF_STR-PARTNR sy-vline 
WA_VZKOPF_STR-SBILK sy-vline 
WA_VZKOPF_STR-SGLZB sy-vline 
WA_VZKOPF_STR-DBLFZ sy-vline 
WA_VZKOPF_STR-DELFZ sy-vline 
WA_VZKOPF_STR-STILGART sy-vline 
WA_VZKOPF_STR-SZINSTYP sy-vline 
WA_VZKOPF_STR-PKOND sy-vline 
WA_VZKOPF_STR-SZSREF sy-vline 
WA_VZKOPF_STR-SNOTTYPE sy-vline 
WA_VZKOPF_STR-SFHAART sy-vline 
WA_VZKOPF_STR-SFGTYP sy-vline 
WA_VZKOPF_STR-RREFKONT sy-vline 
WA_VZKOPF_STR-SFGZUSTT sy-vline 
WA_VZKOPF_STR-SBWHR sy-vline 
WA_VZKOPF_STR-WGSCHFT1 sy-vline 
WA_VZKOPF_STR-WGSCHFT2 sy-vline 
WA_VZKOPF_STR-KKURS sy-vline 
WA_VZKOPF_STR-DEFSZ sy-vline 
WA_VZKOPF_STR-BZUSAGE sy-vline 
WA_VZKOPF_STR-SOFTYP sy-vline 
WA_VZKOPF_STR-SAKTIV sy-vline 
WA_VZKOPF_STR-RDEALER sy-vline      INTO ld_text SEPARATED BY SPACE.

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