ABAP Select data from SAP table VV_T559E_KZ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VV_T559E_KZ 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 VV_T559E_KZ. 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 VV_T559E_KZ 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_VV_T559E_KZ TYPE STANDARD TABLE OF VV_T559E_KZ,
      WA_VV_T559E_KZ TYPE VV_T559E_KZ,
      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: <VV_T559E_KZ> TYPE VV_T559E_KZ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VV_T559E_KZ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VV_T559E_KZ
  INTO TABLE IT_VV_T559E_KZ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VV_T559E_KZ
*  INTO TABLE @DATA(IT_VV_T559E_KZ2).
*--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_VV_T559E_KZ INDEX 1 INTO DATA(WA_VV_T559E_KZ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VV_T559E_KZ ASSIGNING <VV_T559E_KZ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VV_T559E_KZ>-MANDT = 1.
<VV_T559E_KZ>-MOPGK = 1.
<VV_T559E_KZ>-MOZKO = 1.
<VV_T559E_KZ>-MOBDE = 1.
<VV_T559E_KZ>-QTYPE = 1.

ENDLOOP.

LOOP AT IT_VV_T559E_KZ INTO WA_VV_T559E_KZ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VV_T559E_KZ-RULNO, sy-vline,
  WA_VV_T559E_KZ-SEQNR, sy-vline,
  WA_VV_T559E_KZ-ENDDA, sy-vline,
  WA_VV_T559E_KZ-ETEXT, sy-vline,
  WA_VV_T559E_KZ-QTEXT, sy-vline,
  WA_VV_T559E_KZ-BEGDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VV_T559E_KZ 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_VV_T559E_KZ 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_VV_T559E_KZ INTO WA_VV_T559E_KZ.


*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_VV_T559E_KZ_STR, 
MANDT TYPE STRING,
MOPGK TYPE STRING,
MOZKO TYPE STRING,
MOBDE TYPE STRING,
QTYPE TYPE STRING,
RULNO TYPE STRING,
SEQNR TYPE STRING,
ENDDA TYPE STRING,
ETEXT TYPE STRING,
QTEXT TYPE STRING,
BEGDA TYPE STRING,
SEBEG TYPE STRING,
SEEND TYPE STRING,
SEUNI TYPE STRING,
AGBEG TYPE STRING,
AGEND TYPE STRING,
AGUNI TYPE STRING,
LVNUM TYPE STRING,
TTZES TYPE STRING,
TTSAL TYPE STRING,
NUPER TYPE STRING,
NFREQ TYPE STRING,
BASDT TYPE STRING,
BASRV TYPE STRING,
BASRU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VV_T559E_KZ_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_VV_T559E_KZ_STR-MANDT sy-vline 
WA_VV_T559E_KZ_STR-MOPGK sy-vline 
WA_VV_T559E_KZ_STR-MOZKO sy-vline 
WA_VV_T559E_KZ_STR-MOBDE sy-vline 
WA_VV_T559E_KZ_STR-QTYPE sy-vline 
WA_VV_T559E_KZ_STR-RULNO sy-vline 
WA_VV_T559E_KZ_STR-SEQNR sy-vline 
WA_VV_T559E_KZ_STR-ENDDA sy-vline 
WA_VV_T559E_KZ_STR-ETEXT sy-vline 
WA_VV_T559E_KZ_STR-QTEXT sy-vline 
WA_VV_T559E_KZ_STR-BEGDA sy-vline 
WA_VV_T559E_KZ_STR-SEBEG sy-vline 
WA_VV_T559E_KZ_STR-SEEND sy-vline 
WA_VV_T559E_KZ_STR-SEUNI sy-vline 
WA_VV_T559E_KZ_STR-AGBEG sy-vline 
WA_VV_T559E_KZ_STR-AGEND sy-vline 
WA_VV_T559E_KZ_STR-AGUNI sy-vline 
WA_VV_T559E_KZ_STR-LVNUM sy-vline 
WA_VV_T559E_KZ_STR-TTZES sy-vline 
WA_VV_T559E_KZ_STR-TTSAL sy-vline 
WA_VV_T559E_KZ_STR-NUPER sy-vline 
WA_VV_T559E_KZ_STR-NFREQ sy-vline 
WA_VV_T559E_KZ_STR-BASDT sy-vline 
WA_VV_T559E_KZ_STR-BASRV sy-vline 
WA_VV_T559E_KZ_STR-BASRU sy-vline      INTO ld_text SEPARATED BY SPACE.

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