ABAP Select data from SAP table HRMS_BW_IO_EVENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRMS_BW_IO_EVENT
*  INTO TABLE @DATA(IT_HRMS_BW_IO_EVENT2).
*--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_HRMS_BW_IO_EVENT INDEX 1 INTO DATA(WA_HRMS_BW_IO_EVENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRMS_BW_IO_EVENT>-GRPID = 1.
<HRMS_BW_IO_EVENT>-ETYID = 1.
<HRMS_BW_IO_EVENT>-EVEID = 1.
<HRMS_BW_IO_EVENT>-BEGDA = 1.
<HRMS_BW_IO_EVENT>-ENDDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRMS_BW_IO_EVENT-ESTAT, sy-vline,
  WA_HRMS_BW_IO_EVENT-EXTERN, sy-vline,
  WA_HRMS_BW_IO_EVENT-LANGU, sy-vline,
  WA_HRMS_BW_IO_EVENT-LOCID, sy-vline,
  WA_HRMS_BW_IO_EVENT-OOTYP, sy-vline,
  WA_HRMS_BW_IO_EVENT-OGAID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRMS_BW_IO_EVENT 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_HRMS_BW_IO_EVENT 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_HRMS_BW_IO_EVENT INTO WA_HRMS_BW_IO_EVENT.


*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 LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BW_IO_EVENT-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BW_IO_EVENT-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BW_IO_EVENT-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BW_IO_EVENT-KOSTL.
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_HRMS_BW_IO_EVENT_STR, 
GRPID TYPE STRING,
ETYID TYPE STRING,
EVEID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ESTAT TYPE STRING,
EXTERN TYPE STRING,
LANGU TYPE STRING,
LOCID TYPE STRING,
OOTYP TYPE STRING,
OGAID TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KOSTS TYPE STRING,
KWAER TYPE STRING,
IKOST TYPE STRING,
IWAER TYPE STRING,
EKOST TYPE STRING,
EWAER TYPE STRING,
OPTKAP TYPE STRING,
MINKAP TYPE STRING,
MAXKAP TYPE STRING,
NDAYS TYPE STRING,
NHOURS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRMS_BW_IO_EVENT_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_HRMS_BW_IO_EVENT_STR-GRPID sy-vline 
WA_HRMS_BW_IO_EVENT_STR-ETYID sy-vline 
WA_HRMS_BW_IO_EVENT_STR-EVEID sy-vline 
WA_HRMS_BW_IO_EVENT_STR-BEGDA sy-vline 
WA_HRMS_BW_IO_EVENT_STR-ENDDA sy-vline 
WA_HRMS_BW_IO_EVENT_STR-ESTAT sy-vline 
WA_HRMS_BW_IO_EVENT_STR-EXTERN sy-vline 
WA_HRMS_BW_IO_EVENT_STR-LANGU sy-vline 
WA_HRMS_BW_IO_EVENT_STR-LOCID sy-vline 
WA_HRMS_BW_IO_EVENT_STR-OOTYP sy-vline 
WA_HRMS_BW_IO_EVENT_STR-OGAID sy-vline 
WA_HRMS_BW_IO_EVENT_STR-KOKRS sy-vline 
WA_HRMS_BW_IO_EVENT_STR-KOSTL sy-vline 
WA_HRMS_BW_IO_EVENT_STR-VKORG sy-vline 
WA_HRMS_BW_IO_EVENT_STR-VTWEG sy-vline 
WA_HRMS_BW_IO_EVENT_STR-SPART sy-vline 
WA_HRMS_BW_IO_EVENT_STR-KOSTS sy-vline 
WA_HRMS_BW_IO_EVENT_STR-KWAER sy-vline 
WA_HRMS_BW_IO_EVENT_STR-IKOST sy-vline 
WA_HRMS_BW_IO_EVENT_STR-IWAER sy-vline 
WA_HRMS_BW_IO_EVENT_STR-EKOST sy-vline 
WA_HRMS_BW_IO_EVENT_STR-EWAER sy-vline 
WA_HRMS_BW_IO_EVENT_STR-OPTKAP sy-vline 
WA_HRMS_BW_IO_EVENT_STR-MINKAP sy-vline 
WA_HRMS_BW_IO_EVENT_STR-MAXKAP sy-vline 
WA_HRMS_BW_IO_EVENT_STR-NDAYS sy-vline 
WA_HRMS_BW_IO_EVENT_STR-NHOURS sy-vline      INTO ld_text SEPARATED BY SPACE.

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