ABAP Select data from SAP table HRV_RHSEMI60 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRV_RHSEMI60 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 HRV_RHSEMI60. 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 HRV_RHSEMI60 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_HRV_RHSEMI60 TYPE STANDARD TABLE OF HRV_RHSEMI60,
      WA_HRV_RHSEMI60 TYPE HRV_RHSEMI60,
      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: <HRV_RHSEMI60> TYPE HRV_RHSEMI60.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRV_RHSEMI60.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRV_RHSEMI60
  INTO TABLE IT_HRV_RHSEMI60.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRV_RHSEMI60
*  INTO TABLE @DATA(IT_HRV_RHSEMI602).
*--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_HRV_RHSEMI60 INDEX 1 INTO DATA(WA_HRV_RHSEMI602).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRV_RHSEMI60 ASSIGNING <HRV_RHSEMI60>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRV_RHSEMI60>-EVTYP = 1.
<HRV_RHSEMI60>-EVEID = 1.
<HRV_RHSEMI60>-EVTEX = 1.
<HRV_RHSEMI60>-ETEXT = 1.
<HRV_RHSEMI60>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_HRV_RHSEMI60 INTO WA_HRV_RHSEMI60.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRV_RHSEMI60-ENDDA, sy-vline,
  WA_HRV_RHSEMI60-LANGU, sy-vline,
  WA_HRV_RHSEMI60-LOCTY, sy-vline,
  WA_HRV_RHSEMI60-LOCID, sy-vline,
  WA_HRV_RHSEMI60-EVLOC, sy-vline,
  WA_HRV_RHSEMI60-LOCTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRV_RHSEMI60 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_HRV_RHSEMI60 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_HRV_RHSEMI60 INTO WA_HRV_RHSEMI60.


*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_HRV_RHSEMI60-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRV_RHSEMI60-LANGU.
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_HRV_RHSEMI60_STR, 
EVTYP TYPE STRING,
EVEID TYPE STRING,
EVTEX TYPE STRING,
ETEXT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
LANGU TYPE STRING,
LOCTY TYPE STRING,
LOCID TYPE STRING,
EVLOC TYPE STRING,
LOCTX TYPE STRING,
BUILD TYPE STRING,
ROOMTYP TYPE STRING,
ROOMID TYPE STRING,
ROOMSHORT TYPE STRING,
ROOMNAME TYPE STRING,
ROOM1 TYPE STRING,
TELNR TYPE STRING,
FCONT TYPE STRING,
MCONT TYPE STRING,
NCONT TYPE STRING,
WCONT TYPE STRING,
KAPZ1 TYPE STRING,
KAPZ2 TYPE STRING,
KAPZ3 TYPE STRING,
NDAYS TYPE STRING,
NHOURS TYPE STRING,
REFTYP TYPE STRING,
REFID TYPE STRING,
REFSHORT TYPE STRING,
REFNAME TYPE STRING,
COMPTYP TYPE STRING,
COMPID TYPE STRING,
COMPSHORT TYPE STRING,
COMPNAME TYPE STRING,
ISTAT TYPE STRING,
LOCKM TYPE STRING,
HISTO TYPE STRING,
DELET TYPE STRING,
RESPTY TYPE STRING,
RESPID TYPE STRING,
RESPSH TYPE STRING,
RESPTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRV_RHSEMI60_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_HRV_RHSEMI60_STR-EVTYP sy-vline 
WA_HRV_RHSEMI60_STR-EVEID sy-vline 
WA_HRV_RHSEMI60_STR-EVTEX sy-vline 
WA_HRV_RHSEMI60_STR-ETEXT sy-vline 
WA_HRV_RHSEMI60_STR-BEGDA sy-vline 
WA_HRV_RHSEMI60_STR-ENDDA sy-vline 
WA_HRV_RHSEMI60_STR-LANGU sy-vline 
WA_HRV_RHSEMI60_STR-LOCTY sy-vline 
WA_HRV_RHSEMI60_STR-LOCID sy-vline 
WA_HRV_RHSEMI60_STR-EVLOC sy-vline 
WA_HRV_RHSEMI60_STR-LOCTX sy-vline 
WA_HRV_RHSEMI60_STR-BUILD sy-vline 
WA_HRV_RHSEMI60_STR-ROOMTYP sy-vline 
WA_HRV_RHSEMI60_STR-ROOMID sy-vline 
WA_HRV_RHSEMI60_STR-ROOMSHORT sy-vline 
WA_HRV_RHSEMI60_STR-ROOMNAME sy-vline 
WA_HRV_RHSEMI60_STR-ROOM1 sy-vline 
WA_HRV_RHSEMI60_STR-TELNR sy-vline 
WA_HRV_RHSEMI60_STR-FCONT sy-vline 
WA_HRV_RHSEMI60_STR-MCONT sy-vline 
WA_HRV_RHSEMI60_STR-NCONT sy-vline 
WA_HRV_RHSEMI60_STR-WCONT sy-vline 
WA_HRV_RHSEMI60_STR-KAPZ1 sy-vline 
WA_HRV_RHSEMI60_STR-KAPZ2 sy-vline 
WA_HRV_RHSEMI60_STR-KAPZ3 sy-vline 
WA_HRV_RHSEMI60_STR-NDAYS sy-vline 
WA_HRV_RHSEMI60_STR-NHOURS sy-vline 
WA_HRV_RHSEMI60_STR-REFTYP sy-vline 
WA_HRV_RHSEMI60_STR-REFID sy-vline 
WA_HRV_RHSEMI60_STR-REFSHORT sy-vline 
WA_HRV_RHSEMI60_STR-REFNAME sy-vline 
WA_HRV_RHSEMI60_STR-COMPTYP sy-vline 
WA_HRV_RHSEMI60_STR-COMPID sy-vline 
WA_HRV_RHSEMI60_STR-COMPSHORT sy-vline 
WA_HRV_RHSEMI60_STR-COMPNAME sy-vline 
WA_HRV_RHSEMI60_STR-ISTAT sy-vline 
WA_HRV_RHSEMI60_STR-LOCKM sy-vline 
WA_HRV_RHSEMI60_STR-HISTO sy-vline 
WA_HRV_RHSEMI60_STR-DELET sy-vline 
WA_HRV_RHSEMI60_STR-RESPTY sy-vline 
WA_HRV_RHSEMI60_STR-RESPID sy-vline 
WA_HRV_RHSEMI60_STR-RESPSH sy-vline 
WA_HRV_RHSEMI60_STR-RESPTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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