ABAP Select data from SAP table CEHSTSKFUO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEHSTSKFUO
*  INTO TABLE @DATA(IT_CEHSTSKFUO2).
*--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_CEHSTSKFUO INDEX 1 INTO DATA(WA_CEHSTSKFUO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEHSTSKFUO>-MANDT = 1.
<CEHSTSKFUO>-EHSTASKFOLLOWUPUUID = 1.
<CEHSTSKFUO>-EHSPLANNEDTASKUUID = 1.
<CEHSTSKFUO>-TASKFOLLOWREFOBJTYPE = 1.
<CEHSTSKFUO>-TASKFOLLOWREFOBJUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEHSTSKFUO-INCIDENTUUID, sy-vline,
  WA_CEHSTSKFUO-EHSTASKFOLLOWUPTYPE, sy-vline,
  WA_CEHSTSKFUO-EHSTASKFOLLOWUPID, sy-vline,
  WA_CEHSTSKFUO-EHSTASKFOLLOWUPNAME, sy-vline,
  WA_CEHSTSKFUO-CREATEDBYUSERDESCRIPTION, sy-vline,
  WA_CEHSTSKFUO-CREATIONDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEHSTSKFUO 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_CEHSTSKFUO 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_CEHSTSKFUO INTO WA_CEHSTSKFUO.


*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 EHSTASKFOLLOWUPID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEHSTSKFUO-EHSTASKFOLLOWUPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEHSTSKFUO-EHSTASKFOLLOWUPID.
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_CEHSTSKFUO_STR, 
MANDT TYPE STRING,
EHSTASKFOLLOWUPUUID TYPE STRING,
EHSPLANNEDTASKUUID TYPE STRING,
TASKFOLLOWREFOBJTYPE TYPE STRING,
TASKFOLLOWREFOBJUUID TYPE STRING,
INCIDENTUUID TYPE STRING,
EHSTASKFOLLOWUPTYPE TYPE STRING,
EHSTASKFOLLOWUPID TYPE STRING,
EHSTASKFOLLOWUPNAME TYPE STRING,
CREATEDBYUSERDESCRIPTION TYPE STRING,
CREATIONDATETIME TYPE STRING,
EHSTASKFOLLOWUPREFOBJURL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEHSTSKFUO_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_CEHSTSKFUO_STR-MANDT sy-vline 
WA_CEHSTSKFUO_STR-EHSTASKFOLLOWUPUUID sy-vline 
WA_CEHSTSKFUO_STR-EHSPLANNEDTASKUUID sy-vline 
WA_CEHSTSKFUO_STR-TASKFOLLOWREFOBJTYPE sy-vline 
WA_CEHSTSKFUO_STR-TASKFOLLOWREFOBJUUID sy-vline 
WA_CEHSTSKFUO_STR-INCIDENTUUID sy-vline 
WA_CEHSTSKFUO_STR-EHSTASKFOLLOWUPTYPE sy-vline 
WA_CEHSTSKFUO_STR-EHSTASKFOLLOWUPID sy-vline 
WA_CEHSTSKFUO_STR-EHSTASKFOLLOWUPNAME sy-vline 
WA_CEHSTSKFUO_STR-CREATEDBYUSERDESCRIPTION sy-vline 
WA_CEHSTSKFUO_STR-CREATIONDATETIME sy-vline 
WA_CEHSTSKFUO_STR-EHSTASKFOLLOWUPREFOBJURL sy-vline      INTO ld_text SEPARATED BY SPACE.

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