ABAP Select data from SAP table V_ICLCCEVENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_ICLCCEVENT
*  INTO TABLE @DATA(IT_V_ICLCCEVENT2).
*--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_V_ICLCCEVENT INDEX 1 INTO DATA(WA_V_ICLCCEVENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_ICLCCEVENT>-CLIENT = 1.
<V_ICLCCEVENT>-ACTIVE = 1.
<V_ICLCCEVENT>-CCEVENT = 1.
<V_ICLCCEVENT>-LANGU = 1.
<V_ICLCCEVENT>-CCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_ICLCCEVENT-SUBTYPE, sy-vline,
  WA_V_ICLCCEVENT-CCSBRTYPE, sy-vline,
  WA_V_ICLCCEVENT-TYPE, sy-vline,
  WA_V_ICLCCEVENT-CCTYPEN, sy-vline,
  WA_V_ICLCCEVENT-CREATEDBY, sy-vline,
  WA_V_ICLCCEVENT-RANGEFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_ICLCCEVENT 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_V_ICLCCEVENT 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_V_ICLCCEVENT INTO WA_V_ICLCCEVENT.


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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_ICLCCEVENT-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ICLCCEVENT-LANGU.
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_V_ICLCCEVENT_STR, 
CLIENT TYPE STRING,
ACTIVE TYPE STRING,
CCEVENT TYPE STRING,
LANGU TYPE STRING,
CCTYPE TYPE STRING,
SUBTYPE TYPE STRING,
CCSBRTYPE TYPE STRING,
TYPE TYPE STRING,
CCTYPEN TYPE STRING,
CREATEDBY TYPE STRING,
RANGEFROM TYPE STRING,
STATUS TYPE STRING,
SUBTYPENAME TYPE STRING,
CCSBRTYPEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_ICLCCEVENT_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_V_ICLCCEVENT_STR-CLIENT sy-vline 
WA_V_ICLCCEVENT_STR-ACTIVE sy-vline 
WA_V_ICLCCEVENT_STR-CCEVENT sy-vline 
WA_V_ICLCCEVENT_STR-LANGU sy-vline 
WA_V_ICLCCEVENT_STR-CCTYPE sy-vline 
WA_V_ICLCCEVENT_STR-SUBTYPE sy-vline 
WA_V_ICLCCEVENT_STR-CCSBRTYPE sy-vline 
WA_V_ICLCCEVENT_STR-TYPE sy-vline 
WA_V_ICLCCEVENT_STR-CCTYPEN sy-vline 
WA_V_ICLCCEVENT_STR-CREATEDBY sy-vline 
WA_V_ICLCCEVENT_STR-RANGEFROM sy-vline 
WA_V_ICLCCEVENT_STR-STATUS sy-vline 
WA_V_ICLCCEVENT_STR-SUBTYPENAME sy-vline 
WA_V_ICLCCEVENT_STR-CCSBRTYPEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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