ABAP Select data from SAP table HRTEMEVENT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRTEMEVENT 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 HRTEMEVENT. 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 HRTEMEVENT 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_HRTEMEVENT TYPE STANDARD TABLE OF HRTEMEVENT,
      WA_HRTEMEVENT TYPE HRTEMEVENT,
      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: <HRTEMEVENT> TYPE HRTEMEVENT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRTEMEVENT
*  INTO TABLE @DATA(IT_HRTEMEVENT2).
*--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_HRTEMEVENT INDEX 1 INTO DATA(WA_HRTEMEVENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRTEMEVENT>-PLVAR = 1.
<HRTEMEVENT>-EVEID = 1.
<HRTEMEVENT>-EVSHT = 1.
<HRTEMEVENT>-EVSTX = 1.
<HRTEMEVENT>-EVBEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRTEMEVENT-EVEND, sy-vline,
  WA_HRTEMEVENT-EVLNG, sy-vline,
  WA_HRTEMEVENT-LOCID, sy-vline,
  WA_HRTEMEVENT-KAPZ1, sy-vline,
  WA_HRTEMEVENT-KAPZ2, sy-vline,
  WA_HRTEMEVENT-KAPZ3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRTEMEVENT 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_HRTEMEVENT 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_HRTEMEVENT INTO WA_HRTEMEVENT.


*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 ISOLA, internal->external for field EVLNG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRTEMEVENT-EVLNG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRTEMEVENT-EVLNG.
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_HRTEMEVENT_STR, 
PLVAR TYPE STRING,
EVEID TYPE STRING,
EVSHT TYPE STRING,
EVSTX TYPE STRING,
EVBEG TYPE STRING,
EVEND TYPE STRING,
EVLNG TYPE STRING,
LOCID TYPE STRING,
KAPZ1 TYPE STRING,
KAPZ2 TYPE STRING,
KAPZ3 TYPE STRING,
FCONT TYPE STRING,
BCONT TYPE STRING,
WCONT TYPE STRING,
IKOST TYPE STRING,
IWAER TYPE STRING,
EKOST TYPE STRING,
EWAER TYPE STRING,
PRIOX TYPE STRING,
MESSAGETYPE TYPE STRING,
NO_AUTHORITY TYPE STRING,
ISTAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRTEMEVENT_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_HRTEMEVENT_STR-PLVAR sy-vline 
WA_HRTEMEVENT_STR-EVEID sy-vline 
WA_HRTEMEVENT_STR-EVSHT sy-vline 
WA_HRTEMEVENT_STR-EVSTX sy-vline 
WA_HRTEMEVENT_STR-EVBEG sy-vline 
WA_HRTEMEVENT_STR-EVEND sy-vline 
WA_HRTEMEVENT_STR-EVLNG sy-vline 
WA_HRTEMEVENT_STR-LOCID sy-vline 
WA_HRTEMEVENT_STR-KAPZ1 sy-vline 
WA_HRTEMEVENT_STR-KAPZ2 sy-vline 
WA_HRTEMEVENT_STR-KAPZ3 sy-vline 
WA_HRTEMEVENT_STR-FCONT sy-vline 
WA_HRTEMEVENT_STR-BCONT sy-vline 
WA_HRTEMEVENT_STR-WCONT sy-vline 
WA_HRTEMEVENT_STR-IKOST sy-vline 
WA_HRTEMEVENT_STR-IWAER sy-vline 
WA_HRTEMEVENT_STR-EKOST sy-vline 
WA_HRTEMEVENT_STR-EWAER sy-vline 
WA_HRTEMEVENT_STR-PRIOX sy-vline 
WA_HRTEMEVENT_STR-MESSAGETYPE sy-vline 
WA_HRTEMEVENT_STR-NO_AUTHORITY sy-vline 
WA_HRTEMEVENT_STR-ISTAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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