ABAP Select data from SAP table BTC_S_EVTHISTORY_DISP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BTC_S_EVTHISTORY_DISP
*  INTO TABLE @DATA(IT_BTC_S_EVTHISTORY_DISP2).
*--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_BTC_S_EVTHISTORY_DISP INDEX 1 INTO DATA(WA_BTC_S_EVTHISTORY_DISP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BTC_S_EVTHISTORY_DISP>-EVTHISTDATE = 1.
<BTC_S_EVTHISTORY_DISP>-EVTHISTTIME = 1.
<BTC_S_EVTHISTORY_DISP>-EVENTGUID = 1.
<BTC_S_EVTHISTORY_DISP>-EVENTID = 1.
<BTC_S_EVTHISTORY_DISP>-EVENTPARM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BTC_S_EVTHISTORY_DISP-EVENTSERVER, sy-vline,
  WA_BTC_S_EVTHISTORY_DISP-EVTTIMESTAMP, sy-vline,
  WA_BTC_S_EVTHISTORY_DISP-EVENTSTATE, sy-vline,
  WA_BTC_S_EVTHISTORY_DISP-PROCESSSTATE, sy-vline,
  WA_BTC_S_EVTHISTORY_DISP-COUNTOFJOBS, sy-vline,
  WA_BTC_S_EVTHISTORY_DISP-EVENTSTATE_EX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BTC_S_EVTHISTORY_DISP 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_BTC_S_EVTHISTORY_DISP 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_BTC_S_EVTHISTORY_DISP INTO WA_BTC_S_EVTHISTORY_DISP.


*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_BTC_S_EVTHISTORY_DISP_STR, 
EVTHISTDATE TYPE STRING,
EVTHISTTIME TYPE STRING,
EVENTGUID TYPE STRING,
EVENTID TYPE STRING,
EVENTPARM TYPE STRING,
EVENTSERVER TYPE STRING,
EVTTIMESTAMP TYPE STRING,
EVENTSTATE TYPE STRING,
PROCESSSTATE TYPE STRING,
COUNTOFJOBS TYPE STRING,
EVENTSTATE_EX TYPE STRING,
PROCESSSTATE_EX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BTC_S_EVTHISTORY_DISP_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_BTC_S_EVTHISTORY_DISP_STR-EVTHISTDATE sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVTHISTTIME sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVENTGUID sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVENTID sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVENTPARM sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVENTSERVER sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVTTIMESTAMP sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVENTSTATE sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-PROCESSSTATE sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-COUNTOFJOBS sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-EVENTSTATE_EX sy-vline 
WA_BTC_S_EVTHISTORY_DISP_STR-PROCESSSTATE_EX sy-vline      INTO ld_text SEPARATED BY SPACE.

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