ABAP Select data from SAP table EAMI_EM_EVENT_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAMI_EM_EVENT_DATA
*  INTO TABLE @DATA(IT_EAMI_EM_EVENT_DATA2).
*--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_EAMI_EM_EVENT_DATA INDEX 1 INTO DATA(WA_EAMI_EM_EVENT_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAMI_EM_EVENT_DATA>-UUID = 1.
<EAMI_EM_EVENT_DATA>-MANDT = 1.
<EAMI_EM_EVENT_DATA>-EVENTID = 1.
<EAMI_EM_EVENT_DATA>-EXTEVENTID = 1.
<EAMI_EM_EVENT_DATA>-PROVIDERID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAMI_EM_EVENT_DATA-EVENTTYPECODE, sy-vline,
  WA_EAMI_EM_EVENT_DATA-EVTCATEGORYCODE, sy-vline,
  WA_EAMI_EM_EVENT_DATA-EVTSEVERITYCODE, sy-vline,
  WA_EAMI_EM_EVENT_DATA-EVENTDATE, sy-vline,
  WA_EAMI_EM_EVENT_DATA-EVENTTIME, sy-vline,
  WA_EAMI_EM_EVENT_DATA-EQUNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAMI_EM_EVENT_DATA 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_EAMI_EM_EVENT_DATA 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_EAMI_EM_EVENT_DATA INTO WA_EAMI_EM_EVENT_DATA.


*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 EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAMI_EM_EVENT_DATA-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMI_EM_EVENT_DATA-EQUNR.
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_EAMI_EM_EVENT_DATA_STR, 
UUID TYPE STRING,
MANDT TYPE STRING,
EVENTID TYPE STRING,
EXTEVENTID TYPE STRING,
PROVIDERID TYPE STRING,
EVENTTYPECODE TYPE STRING,
EVTCATEGORYCODE TYPE STRING,
EVTSEVERITYCODE TYPE STRING,
EVENTDATE TYPE STRING,
EVENTTIME TYPE STRING,
EQUNR TYPE STRING,
STATUS TYPE STRING,
EVTSOURCECODE TYPE STRING,
FUNCTIONID TYPE STRING,
CR_DATE TYPE STRING,
CR_TIME TYPE STRING,
CR_NAME TYPE STRING,
CH_DATE TYPE STRING,
CH_TIME TYPE STRING,
CH_NAME TYPE STRING,
TAB_EVENTATTR TYPE STRING,
TAB_EVENTRESULT TYPE STRING,
TAB_MESSAGES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAMI_EM_EVENT_DATA_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_EAMI_EM_EVENT_DATA_STR-UUID sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-MANDT sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EVENTID sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EXTEVENTID sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-PROVIDERID sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EVENTTYPECODE sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EVTCATEGORYCODE sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EVTSEVERITYCODE sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EVENTDATE sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EVENTTIME sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EQUNR sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-STATUS sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-EVTSOURCECODE sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-FUNCTIONID sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-CR_DATE sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-CR_TIME sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-CR_NAME sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-CH_DATE sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-CH_TIME sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-CH_NAME sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-TAB_EVENTATTR sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-TAB_EVENTRESULT sy-vline 
WA_EAMI_EM_EVENT_DATA_STR-TAB_MESSAGES sy-vline      INTO ld_text SEPARATED BY SPACE.

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