ABAP Select data from SAP table LSO_HRVEVDAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LSO_HRVEVDAT
*  INTO TABLE @DATA(IT_LSO_HRVEVDAT2).
*--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_LSO_HRVEVDAT INDEX 1 INTO DATA(WA_LSO_HRVEVDAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LSO_HRVEVDAT>-PLVAR = 1.
<LSO_HRVEVDAT>-EOTYP = 1.
<LSO_HRVEVDAT>-EVEID = 1.
<LSO_HRVEVDAT>-EVTEX = 1.
<LSO_HRVEVDAT>-ETEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LSO_HRVEVDAT-EBEGD, sy-vline,
  WA_LSO_HRVEVDAT-EENDA, sy-vline,
  WA_LSO_HRVEVDAT-ETTYP, sy-vline,
  WA_LSO_HRVEVDAT-ETYID, sy-vline,
  WA_LSO_HRVEVDAT-EVLNG, sy-vline,
  WA_LSO_HRVEVDAT-KAPZ1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LSO_HRVEVDAT 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_LSO_HRVEVDAT 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_LSO_HRVEVDAT INTO WA_LSO_HRVEVDAT.


*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_LSO_HRVEVDAT-EVLNG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LSO_HRVEVDAT-EVLNG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MAXBZGME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LSO_HRVEVDAT-MAXBZGME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LSO_HRVEVDAT-MAXBZGME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MINBZGME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LSO_HRVEVDAT-MINBZGME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LSO_HRVEVDAT-MINBZGME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OPTBZGME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LSO_HRVEVDAT-OPTBZGME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LSO_HRVEVDAT-OPTBZGME.
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_LSO_HRVEVDAT_STR, 
PLVAR TYPE STRING,
EOTYP TYPE STRING,
EVEID TYPE STRING,
EVTEX TYPE STRING,
ETEXT TYPE STRING,
EBEGD TYPE STRING,
EENDA TYPE STRING,
ETTYP TYPE STRING,
ETYID TYPE STRING,
EVLNG TYPE STRING,
KAPZ1 TYPE STRING,
KAPZ2 TYPE STRING,
KAPZ3 TYPE STRING,
FCONT TYPE STRING,
BCONT TYPE STRING,
WCONT TYPE STRING,
LOCID TYPE STRING,
EVLOC TYPE STRING,
TEILX TYPE STRING,
EVFIX TYPE STRING,
ISTAT TYPE STRING,
EVEXT TYPE STRING,
LOCKM TYPE STRING,
HISTO TYPE STRING,
DELET TYPE STRING,
FLUPX TYPE STRING,
NCONT TYPE STRING,
MCONT TYPE STRING,
ORGTY TYPE STRING,
ORGID TYPE STRING,
ORGSH TYPE STRING,
ORGTX TYPE STRING,
DURMAX TYPE STRING,
MAXBZGME TYPE STRING,
DURMIN TYPE STRING,
MINBZGME TYPE STRING,
DEALEND TYPE STRING,
DUROPT TYPE STRING,
OPTBZGME TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LSO_HRVEVDAT_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_LSO_HRVEVDAT_STR-PLVAR sy-vline 
WA_LSO_HRVEVDAT_STR-EOTYP sy-vline 
WA_LSO_HRVEVDAT_STR-EVEID sy-vline 
WA_LSO_HRVEVDAT_STR-EVTEX sy-vline 
WA_LSO_HRVEVDAT_STR-ETEXT sy-vline 
WA_LSO_HRVEVDAT_STR-EBEGD sy-vline 
WA_LSO_HRVEVDAT_STR-EENDA sy-vline 
WA_LSO_HRVEVDAT_STR-ETTYP sy-vline 
WA_LSO_HRVEVDAT_STR-ETYID sy-vline 
WA_LSO_HRVEVDAT_STR-EVLNG sy-vline 
WA_LSO_HRVEVDAT_STR-KAPZ1 sy-vline 
WA_LSO_HRVEVDAT_STR-KAPZ2 sy-vline 
WA_LSO_HRVEVDAT_STR-KAPZ3 sy-vline 
WA_LSO_HRVEVDAT_STR-FCONT sy-vline 
WA_LSO_HRVEVDAT_STR-BCONT sy-vline 
WA_LSO_HRVEVDAT_STR-WCONT sy-vline 
WA_LSO_HRVEVDAT_STR-LOCID sy-vline 
WA_LSO_HRVEVDAT_STR-EVLOC sy-vline 
WA_LSO_HRVEVDAT_STR-TEILX sy-vline 
WA_LSO_HRVEVDAT_STR-EVFIX sy-vline 
WA_LSO_HRVEVDAT_STR-ISTAT sy-vline 
WA_LSO_HRVEVDAT_STR-EVEXT sy-vline 
WA_LSO_HRVEVDAT_STR-LOCKM sy-vline 
WA_LSO_HRVEVDAT_STR-HISTO sy-vline 
WA_LSO_HRVEVDAT_STR-DELET sy-vline 
WA_LSO_HRVEVDAT_STR-FLUPX sy-vline 
WA_LSO_HRVEVDAT_STR-NCONT sy-vline 
WA_LSO_HRVEVDAT_STR-MCONT sy-vline 
WA_LSO_HRVEVDAT_STR-ORGTY sy-vline 
WA_LSO_HRVEVDAT_STR-ORGID sy-vline 
WA_LSO_HRVEVDAT_STR-ORGSH sy-vline 
WA_LSO_HRVEVDAT_STR-ORGTX sy-vline 
WA_LSO_HRVEVDAT_STR-DURMAX sy-vline 
WA_LSO_HRVEVDAT_STR-MAXBZGME sy-vline 
WA_LSO_HRVEVDAT_STR-DURMIN sy-vline 
WA_LSO_HRVEVDAT_STR-MINBZGME sy-vline 
WA_LSO_HRVEVDAT_STR-DEALEND sy-vline 
WA_LSO_HRVEVDAT_STR-DUROPT sy-vline 
WA_LSO_HRVEVDAT_STR-OPTBZGME sy-vline 
WA_LSO_HRVEVDAT_STR-BEGUZ sy-vline 
WA_LSO_HRVEVDAT_STR-ENDUZ sy-vline 
WA_LSO_HRVEVDAT_STR-ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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