ABAP Select data from SAP table VVISRZK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVISRZK
*  INTO TABLE @DATA(IT_VVISRZK2).
*--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_VVISRZK INDEX 1 INTO DATA(WA_VVISRZK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVISRZK>-BUKRS = 1.
<VVISRZK>-BUTXT = 1.
<VVISRZK>-IMKEY = 1.
<VVISRZK>-INTRENO = 1.
<VVISRZK>-RANTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVISRZK-RANL, sy-vline,
  WA_VVISRZK-RANLTXT, sy-vline,
  WA_VVISRZK-KUNNR, sy-vline,
  WA_VVISRZK-KUTXT, sy-vline,
  WA_VVISRZK-BVTYP, sy-vline,
  WA_VVISRZK-HBKID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVISRZK 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_VVISRZK 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_VVISRZK INTO WA_VVISRZK.


*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 IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_VVISRZK-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVISRZK-IMKEY.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVISRZK-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVISRZK-KUNNR.
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_VVISRZK_STR, 
BUKRS TYPE STRING,
BUTXT TYPE STRING,
IMKEY TYPE STRING,
INTRENO TYPE STRING,
RANTYP TYPE STRING,
RANL TYPE STRING,
RANLTXT TYPE STRING,
KUNNR TYPE STRING,
KUTXT TYPE STRING,
BVTYP TYPE STRING,
HBKID TYPE STRING,
VBEWA TYPE STRING,
RZDBEG TYPE STRING,
RZDEND TYPE STRING,
RZMON TYPE STRING,
RZDAY TYPE STRING,
RZNUM TYPE STRING,
RZBTR TYPE STRING,
RZMWSKZ TYPE STRING,
RZBMAX TYPE STRING,
RZCURR TYPE STRING,
RZXRST TYPE STRING,
TXJCD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVISRZK_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_VVISRZK_STR-BUKRS sy-vline 
WA_VVISRZK_STR-BUTXT sy-vline 
WA_VVISRZK_STR-IMKEY sy-vline 
WA_VVISRZK_STR-INTRENO sy-vline 
WA_VVISRZK_STR-RANTYP sy-vline 
WA_VVISRZK_STR-RANL sy-vline 
WA_VVISRZK_STR-RANLTXT sy-vline 
WA_VVISRZK_STR-KUNNR sy-vline 
WA_VVISRZK_STR-KUTXT sy-vline 
WA_VVISRZK_STR-BVTYP sy-vline 
WA_VVISRZK_STR-HBKID sy-vline 
WA_VVISRZK_STR-VBEWA sy-vline 
WA_VVISRZK_STR-RZDBEG sy-vline 
WA_VVISRZK_STR-RZDEND sy-vline 
WA_VVISRZK_STR-RZMON sy-vline 
WA_VVISRZK_STR-RZDAY sy-vline 
WA_VVISRZK_STR-RZNUM sy-vline 
WA_VVISRZK_STR-RZBTR sy-vline 
WA_VVISRZK_STR-RZMWSKZ sy-vline 
WA_VVISRZK_STR-RZBMAX sy-vline 
WA_VVISRZK_STR-RZCURR sy-vline 
WA_VVISRZK_STR-RZXRST sy-vline 
WA_VVISRZK_STR-TXJCD sy-vline      INTO ld_text SEPARATED BY SPACE.

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