ABAP Select data from SAP table V56I_CUA_OPT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V56I_CUA_OPT 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 V56I_CUA_OPT. 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 V56I_CUA_OPT 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_V56I_CUA_OPT TYPE STANDARD TABLE OF V56I_CUA_OPT,
      WA_V56I_CUA_OPT TYPE V56I_CUA_OPT,
      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: <V56I_CUA_OPT> TYPE V56I_CUA_OPT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V56I_CUA_OPT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V56I_CUA_OPT
  INTO TABLE IT_V56I_CUA_OPT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V56I_CUA_OPT
*  INTO TABLE @DATA(IT_V56I_CUA_OPT2).
*--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_V56I_CUA_OPT INDEX 1 INTO DATA(WA_V56I_CUA_OPT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V56I_CUA_OPT ASSIGNING <V56I_CUA_OPT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V56I_CUA_OPT>-DYNNR = 1.
<V56I_CUA_OPT>-TITLE = 1.
<V56I_CUA_OPT>-PROGRAM = 1.
<V56I_CUA_OPT>-IDENT = 1.
<V56I_CUA_OPT>-PARAM1 = 1.

ENDLOOP.

LOOP AT IT_V56I_CUA_OPT INTO WA_V56I_CUA_OPT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V56I_CUA_OPT-PARAM2, sy-vline,
  WA_V56I_CUA_OPT-PARAM3, sy-vline,
  WA_V56I_CUA_OPT-PARAM4, sy-vline,
  WA_V56I_CUA_OPT-STATUS, sy-vline,
  WA_V56I_CUA_OPT-PROGRAM, sy-vline,
  WA_V56I_CUA_OPT-IDENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V56I_CUA_OPT 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_V56I_CUA_OPT 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_V56I_CUA_OPT INTO WA_V56I_CUA_OPT.


*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_V56I_CUA_OPT_STR, 
DYNNR TYPE STRING,
TITLE TYPE STRING,
PROGRAM TYPE STRING,
IDENT TYPE STRING,
PARAM1 TYPE STRING,
PARAM2 TYPE STRING,
PARAM3 TYPE STRING,
PARAM4 TYPE STRING,
STATUS TYPE STRING,
PROGRAM TYPE STRING,
IDENT TYPE STRING,
EXCL_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V56I_CUA_OPT_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_V56I_CUA_OPT_STR-DYNNR sy-vline 
WA_V56I_CUA_OPT_STR-TITLE sy-vline 
WA_V56I_CUA_OPT_STR-PROGRAM sy-vline 
WA_V56I_CUA_OPT_STR-IDENT sy-vline 
WA_V56I_CUA_OPT_STR-PARAM1 sy-vline 
WA_V56I_CUA_OPT_STR-PARAM2 sy-vline 
WA_V56I_CUA_OPT_STR-PARAM3 sy-vline 
WA_V56I_CUA_OPT_STR-PARAM4 sy-vline 
WA_V56I_CUA_OPT_STR-STATUS sy-vline 
WA_V56I_CUA_OPT_STR-PROGRAM sy-vline 
WA_V56I_CUA_OPT_STR-IDENT sy-vline 
WA_V56I_CUA_OPT_STR-EXCL_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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