ABAP Select data from SAP table IEHSCALIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEHSCALIT
*  INTO TABLE @DATA(IT_IEHSCALIT2).
*--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_IEHSCALIT INDEX 1 INTO DATA(WA_IEHSCALIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEHSCALIT>-MANDT = 1.
<IEHSCALIT>-WORKFLOWTASKINTERNALID = 1.
<IEHSCALIT>-EHSTASKDEFINITIONUUID = 1.
<IEHSCALIT>-EHSTASKHOSTOBJECTINSTANCE = 1.
<IEHSCALIT>-EHSTASKSTATUSVALUEFORSORTING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEHSCALIT-EHSTASKDUEDATE, sy-vline,
  WA_IEHSCALIT-EHSLOCATIONUUID, sy-vline,
  WA_IEHSCALIT-EHSLOCATIONUUIDHEX, sy-vline,
  WA_IEHSCALIT-EHSLOCATIONNAME, sy-vline,
  WA_IEHSCALIT-EHSNUMBEROFTASKS, sy-vline,
  WA_IEHSCALIT-EHSNUMBEROFERRORTASKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEHSCALIT 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_IEHSCALIT 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_IEHSCALIT INTO WA_IEHSCALIT.


*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 ALPHA, internal->external for field EHSTASKOWNERBP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEHSCALIT-EHSTASKOWNERBP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEHSCALIT-EHSTASKOWNERBP.
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_IEHSCALIT_STR, 
MANDT TYPE STRING,
WORKFLOWTASKINTERNALID TYPE STRING,
EHSTASKDEFINITIONUUID TYPE STRING,
EHSTASKHOSTOBJECTINSTANCE TYPE STRING,
EHSTASKSTATUSVALUEFORSORTING TYPE STRING,
EHSTASKDUEDATE TYPE STRING,
EHSLOCATIONUUID TYPE STRING,
EHSLOCATIONUUIDHEX TYPE STRING,
EHSLOCATIONNAME TYPE STRING,
EHSNUMBEROFTASKS TYPE STRING,
EHSNUMBEROFERRORTASKS TYPE STRING,
EHSNUMBEROFOVERDUETASKS TYPE STRING,
EHSNUMBEROFDUETASKS TYPE STRING,
EHSNUMBEROFSCHEDULEDTASKS TYPE STRING,
EHSNUMBEROFCOMPLETEDTASKS TYPE STRING,
EHSTASKHOSTSEMANTICOBJECT TYPE STRING,
INCIDENTCATEGORY TYPE STRING,
INCIDENTSTATUS TYPE STRING,
EHSTASKMONTH TYPE STRING,
EHSTASKYEAR TYPE STRING,
EHSTASKHOSTOBJECTADAPTERCLASS TYPE STRING,
EHSTASKOWNERBP TYPE STRING,
INCIDENTHASACCESSRESTRICTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEHSCALIT_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_IEHSCALIT_STR-MANDT sy-vline 
WA_IEHSCALIT_STR-WORKFLOWTASKINTERNALID sy-vline 
WA_IEHSCALIT_STR-EHSTASKDEFINITIONUUID sy-vline 
WA_IEHSCALIT_STR-EHSTASKHOSTOBJECTINSTANCE sy-vline 
WA_IEHSCALIT_STR-EHSTASKSTATUSVALUEFORSORTING sy-vline 
WA_IEHSCALIT_STR-EHSTASKDUEDATE sy-vline 
WA_IEHSCALIT_STR-EHSLOCATIONUUID sy-vline 
WA_IEHSCALIT_STR-EHSLOCATIONUUIDHEX sy-vline 
WA_IEHSCALIT_STR-EHSLOCATIONNAME sy-vline 
WA_IEHSCALIT_STR-EHSNUMBEROFTASKS sy-vline 
WA_IEHSCALIT_STR-EHSNUMBEROFERRORTASKS sy-vline 
WA_IEHSCALIT_STR-EHSNUMBEROFOVERDUETASKS sy-vline 
WA_IEHSCALIT_STR-EHSNUMBEROFDUETASKS sy-vline 
WA_IEHSCALIT_STR-EHSNUMBEROFSCHEDULEDTASKS sy-vline 
WA_IEHSCALIT_STR-EHSNUMBEROFCOMPLETEDTASKS sy-vline 
WA_IEHSCALIT_STR-EHSTASKHOSTSEMANTICOBJECT sy-vline 
WA_IEHSCALIT_STR-INCIDENTCATEGORY sy-vline 
WA_IEHSCALIT_STR-INCIDENTSTATUS sy-vline 
WA_IEHSCALIT_STR-EHSTASKMONTH sy-vline 
WA_IEHSCALIT_STR-EHSTASKYEAR sy-vline 
WA_IEHSCALIT_STR-EHSTASKHOSTOBJECTADAPTERCLASS sy-vline 
WA_IEHSCALIT_STR-EHSTASKOWNERBP sy-vline 
WA_IEHSCALIT_STR-INCIDENTHASACCESSRESTRICTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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