ABAP Select data from SAP table VT606Z 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 VT606Z 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 VT606Z. 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 VT606Z 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_VT606Z TYPE STANDARD TABLE OF VT606Z,
      WA_VT606Z TYPE VT606Z,
      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: <VT606Z> TYPE VT606Z.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VT606Z.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VT606Z
  INTO TABLE IT_VT606Z.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VT606Z
*  INTO TABLE @DATA(IT_VT606Z2).
*--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_VT606Z INDEX 1 INTO DATA(WA_VT606Z2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VT606Z ASSIGNING <VT606Z>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VT606Z>-MANDT = 1.
<VT606Z>-GEGRU = 1.
<VT606Z>-GEART = 1.
<VT606Z>-KUNNR = 1.
<VT606Z>-GENNR = 1.

ENDLOOP.

LOOP AT IT_VT606Z INTO WA_VT606Z.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VT606Z-PARAG, sy-vline,
  WA_VT606Z-PARWF, sy-vline,
  WA_VT606Z-PARRS, sy-vline,
  WA_VT606Z-PARRE, sy-vline,
  WA_VT606Z-PAREN, sy-vline,
  WA_VT606Z-PARR1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VT606Z 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_VT606Z 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_VT606Z INTO WA_VT606Z.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VT606Z-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT606Z-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VT606Z-GENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT606Z-GENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VT606Z-VBDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT606Z-VBDNR.
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_VT606Z_STR, 
MANDT TYPE STRING,
GEGRU TYPE STRING,
GEART TYPE STRING,
KUNNR TYPE STRING,
GENNR TYPE STRING,
PARAG TYPE STRING,
PARWF TYPE STRING,
PARRS TYPE STRING,
PARRE TYPE STRING,
PAREN TYPE STRING,
PARR1 TYPE STRING,
PARR2 TYPE STRING,
PARR3 TYPE STRING,
VBDNR TYPE STRING,
VBDFG TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VT606Z_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_VT606Z_STR-MANDT sy-vline 
WA_VT606Z_STR-GEGRU sy-vline 
WA_VT606Z_STR-GEART sy-vline 
WA_VT606Z_STR-KUNNR sy-vline 
WA_VT606Z_STR-GENNR sy-vline 
WA_VT606Z_STR-PARAG sy-vline 
WA_VT606Z_STR-PARWF sy-vline 
WA_VT606Z_STR-PARRS sy-vline 
WA_VT606Z_STR-PARRE sy-vline 
WA_VT606Z_STR-PAREN sy-vline 
WA_VT606Z_STR-PARR1 sy-vline 
WA_VT606Z_STR-PARR2 sy-vline 
WA_VT606Z_STR-PARR3 sy-vline 
WA_VT606Z_STR-VBDNR sy-vline 
WA_VT606Z_STR-VBDFG sy-vline 
WA_VT606Z_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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