ABAP Select data from SAP table CACS_S_VVSCITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CACS_S_VVSCITEM
*  INTO TABLE @DATA(IT_CACS_S_VVSCITEM2).
*--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_CACS_S_VVSCITEM INDEX 1 INTO DATA(WA_CACS_S_VVSCITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CACS_S_VVSCITEM>-MANDT = 1.
<CACS_S_VVSCITEM>-GPART = 1.
<CACS_S_VVSCITEM>-VTREF = 1.
<CACS_S_VVSCITEM>-POSNR = 1.
<CACS_S_VVSCITEM>-SCPOSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CACS_S_VVSCITEM-SCITEM, sy-vline,
  WA_CACS_S_VVSCITEM-BLTYP, sy-vline,
  WA_CACS_S_VVSCITEM-STATPOST, sy-vline,
  WA_CACS_S_VVSCITEM-OPBEL, sy-vline,
  WA_CACS_S_VVSCITEM-OPUPK, sy-vline,
  WA_CACS_S_VVSCITEM-OPUPW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CACS_S_VVSCITEM 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_CACS_S_VVSCITEM 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_CACS_S_VVSCITEM INTO WA_CACS_S_VVSCITEM.


*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_CACS_S_VVSCITEM_STR, 
MANDT TYPE STRING,
GPART TYPE STRING,
VTREF TYPE STRING,
POSNR TYPE STRING,
SCPOSNR TYPE STRING,
SCITEM TYPE STRING,
BLTYP TYPE STRING,
STATPOST TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
OPUPW TYPE STRING,
OPUPZ TYPE STRING,
SUBITEM_TYPE TYPE STRING,
AMTDUE TYPE STRING,
AMTDUE_ORG TYPE STRING,
AMTDUE_TIME TYPE STRING,
BETR_DELTA TYPE STRING,
STUDT TYPE STRING,
FRPER TYPE STRING,
TOPER TYPE STRING,
RBTDUE TYPE STRING,
AMOUNT TYPE STRING,
CURR TYPE STRING,
CINEED TYPE STRING,
LITEM TYPE STRING,
XCHARGE TYPE STRING,
PKEY TYPE STRING,
XFIRST TYPE STRING,
XFFIRST TYPE STRING,
PSNGL TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
OPHVORG TYPE STRING,
OPTVORG TYPE STRING,
HKONT TYPE STRING,
CHKONT TYPE STRING,
XREVE TYPE STRING,
REVBL TYPE STRING,
MG1BL TYPE STRING,
XLOCK TYPE STRING,
XALOCK TYPE STRING,
XBLAST TYPE STRING,
XLAST TYPE STRING,
CHGID TYPE STRING,
STAKZ TYPE STRING,
BUDAT TYPE STRING,
SKTPZ TYPE STRING,
ROPBEL TYPE STRING,
ROPUPW TYPE STRING,
ROPUPK TYPE STRING,
ROPUPZ TYPE STRING,
XVORZB TYPE STRING,
STORNGFREVBL TYPE STRING,
STORNZPREVBL TYPE STRING,
STORNPPREVBL TYPE STRING,
FDGRP TYPE STRING,
FDZTG TYPE STRING,
FDLEV TYPE STRING,
FDWBT TYPE STRING,
FDDATE TYPE STRING,
FAEDS TYPE STRING,
GRKEY TYPE STRING,
XMARK TYPE STRING,
GSFNR TYPE STRING,
VTRE3 TYPE STRING,
VGPART3 TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
AMTCHANG TYPE STRING,
WWERT TYPE STRING,
OPORD TYPE STRING,
BROKR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CACS_S_VVSCITEM_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_CACS_S_VVSCITEM_STR-MANDT sy-vline 
WA_CACS_S_VVSCITEM_STR-GPART sy-vline 
WA_CACS_S_VVSCITEM_STR-VTREF sy-vline 
WA_CACS_S_VVSCITEM_STR-POSNR sy-vline 
WA_CACS_S_VVSCITEM_STR-SCPOSNR sy-vline 
WA_CACS_S_VVSCITEM_STR-SCITEM sy-vline 
WA_CACS_S_VVSCITEM_STR-BLTYP sy-vline 
WA_CACS_S_VVSCITEM_STR-STATPOST sy-vline 
WA_CACS_S_VVSCITEM_STR-OPBEL sy-vline 
WA_CACS_S_VVSCITEM_STR-OPUPK sy-vline 
WA_CACS_S_VVSCITEM_STR-OPUPW sy-vline 
WA_CACS_S_VVSCITEM_STR-OPUPZ sy-vline 
WA_CACS_S_VVSCITEM_STR-SUBITEM_TYPE sy-vline 
WA_CACS_S_VVSCITEM_STR-AMTDUE sy-vline 
WA_CACS_S_VVSCITEM_STR-AMTDUE_ORG sy-vline 
WA_CACS_S_VVSCITEM_STR-AMTDUE_TIME sy-vline 
WA_CACS_S_VVSCITEM_STR-BETR_DELTA sy-vline 
WA_CACS_S_VVSCITEM_STR-STUDT sy-vline 
WA_CACS_S_VVSCITEM_STR-FRPER sy-vline 
WA_CACS_S_VVSCITEM_STR-TOPER sy-vline 
WA_CACS_S_VVSCITEM_STR-RBTDUE sy-vline 
WA_CACS_S_VVSCITEM_STR-AMOUNT sy-vline 
WA_CACS_S_VVSCITEM_STR-CURR sy-vline 
WA_CACS_S_VVSCITEM_STR-CINEED sy-vline 
WA_CACS_S_VVSCITEM_STR-LITEM sy-vline 
WA_CACS_S_VVSCITEM_STR-XCHARGE sy-vline 
WA_CACS_S_VVSCITEM_STR-PKEY sy-vline 
WA_CACS_S_VVSCITEM_STR-XFIRST sy-vline 
WA_CACS_S_VVSCITEM_STR-XFFIRST sy-vline 
WA_CACS_S_VVSCITEM_STR-PSNGL sy-vline 
WA_CACS_S_VVSCITEM_STR-HVORG sy-vline 
WA_CACS_S_VVSCITEM_STR-TVORG sy-vline 
WA_CACS_S_VVSCITEM_STR-OPHVORG sy-vline 
WA_CACS_S_VVSCITEM_STR-OPTVORG sy-vline 
WA_CACS_S_VVSCITEM_STR-HKONT sy-vline 
WA_CACS_S_VVSCITEM_STR-CHKONT sy-vline 
WA_CACS_S_VVSCITEM_STR-XREVE sy-vline 
WA_CACS_S_VVSCITEM_STR-REVBL sy-vline 
WA_CACS_S_VVSCITEM_STR-MG1BL sy-vline 
WA_CACS_S_VVSCITEM_STR-XLOCK sy-vline 
WA_CACS_S_VVSCITEM_STR-XALOCK sy-vline 
WA_CACS_S_VVSCITEM_STR-XBLAST sy-vline 
WA_CACS_S_VVSCITEM_STR-XLAST sy-vline 
WA_CACS_S_VVSCITEM_STR-CHGID sy-vline 
WA_CACS_S_VVSCITEM_STR-STAKZ sy-vline 
WA_CACS_S_VVSCITEM_STR-BUDAT sy-vline 
WA_CACS_S_VVSCITEM_STR-SKTPZ sy-vline 
WA_CACS_S_VVSCITEM_STR-ROPBEL sy-vline 
WA_CACS_S_VVSCITEM_STR-ROPUPW sy-vline 
WA_CACS_S_VVSCITEM_STR-ROPUPK sy-vline 
WA_CACS_S_VVSCITEM_STR-ROPUPZ sy-vline 
WA_CACS_S_VVSCITEM_STR-XVORZB sy-vline 
WA_CACS_S_VVSCITEM_STR-STORNGFREVBL sy-vline 
WA_CACS_S_VVSCITEM_STR-STORNZPREVBL sy-vline 
WA_CACS_S_VVSCITEM_STR-STORNPPREVBL sy-vline 
WA_CACS_S_VVSCITEM_STR-FDGRP sy-vline 
WA_CACS_S_VVSCITEM_STR-FDZTG sy-vline 
WA_CACS_S_VVSCITEM_STR-FDLEV sy-vline 
WA_CACS_S_VVSCITEM_STR-FDWBT sy-vline 
WA_CACS_S_VVSCITEM_STR-FDDATE sy-vline 
WA_CACS_S_VVSCITEM_STR-FAEDS sy-vline 
WA_CACS_S_VVSCITEM_STR-GRKEY sy-vline 
WA_CACS_S_VVSCITEM_STR-XMARK sy-vline 
WA_CACS_S_VVSCITEM_STR-GSFNR sy-vline 
WA_CACS_S_VVSCITEM_STR-VTRE3 sy-vline 
WA_CACS_S_VVSCITEM_STR-VGPART3 sy-vline 
WA_CACS_S_VVSCITEM_STR-LAUFD sy-vline 
WA_CACS_S_VVSCITEM_STR-LAUFI sy-vline 
WA_CACS_S_VVSCITEM_STR-AMTCHANG sy-vline 
WA_CACS_S_VVSCITEM_STR-WWERT sy-vline 
WA_CACS_S_VVSCITEM_STR-OPORD sy-vline 
WA_CACS_S_VVSCITEM_STR-BROKR sy-vline      INTO ld_text SEPARATED BY SPACE.

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