ABAP Select data from SAP table ITICKETEVENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITICKETEVENT
*  INTO TABLE @DATA(IT_ITICKETEVENT2).
*--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_ITICKETEVENT INDEX 1 INTO DATA(WA_ITICKETEVENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITICKETEVENT>-MANDT = 1.
<ITICKETEVENT>-NOMINATIONTICKETKEY = 1.
<ITICKETEVENT>-NOMINATIONTICKETITEM = 1.
<ITICKETEVENT>-NOMINATIONTICKETVERSION = 1.
<ITICKETEVENT>-NOMINATIONTICKETPURPOSE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITICKETEVENT-NOMINATIONTICKETEVENTNUMBER, sy-vline,
  WA_ITICKETEVENT-NOMINATIONTICKETEVENTTYPE, sy-vline,
  WA_ITICKETEVENT-NOMINATIONTICKETEVENTTYPEDESC, sy-vline,
  WA_ITICKETEVENT-NOMINATIONTICKETEVENTSQNCNMBR, sy-vline,
  WA_ITICKETEVENT-NOMINATIONTICKETEVTSTRTDTETME, sy-vline,
  WA_ITICKETEVENT-NOMINATIONTICKETEVTENDDTETME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITICKETEVENT 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_ITICKETEVENT 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_ITICKETEVENT INTO WA_ITICKETEVENT.


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

*Conversion exit ALPHA, internal->external for field NOMINATIONTICKETEVENTSQNCNMBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITICKETEVENT-NOMINATIONTICKETEVENTSQNCNMBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITICKETEVENT-NOMINATIONTICKETEVENTSQNCNMBR.
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_ITICKETEVENT_STR, 
MANDT TYPE STRING,
NOMINATIONTICKETKEY TYPE STRING,
NOMINATIONTICKETITEM TYPE STRING,
NOMINATIONTICKETVERSION TYPE STRING,
NOMINATIONTICKETPURPOSE TYPE STRING,
NOMINATIONTICKETEVENTNUMBER TYPE STRING,
NOMINATIONTICKETEVENTTYPE TYPE STRING,
NOMINATIONTICKETEVENTTYPEDESC TYPE STRING,
NOMINATIONTICKETEVENTSQNCNMBR TYPE STRING,
NOMINATIONTICKETEVTSTRTDTETME TYPE STRING,
NOMINATIONTICKETEVTENDDTETME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITICKETEVENT_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_ITICKETEVENT_STR-MANDT sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETKEY sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETITEM sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETVERSION sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETPURPOSE sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETEVENTNUMBER sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETEVENTTYPE sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETEVENTTYPEDESC sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETEVENTSQNCNMBR sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETEVTSTRTDTETME sy-vline 
WA_ITICKETEVENT_STR-NOMINATIONTICKETEVTENDDTETME sy-vline      INTO ld_text SEPARATED BY SPACE.

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