ABAP Select data from SAP table CEHSREQSTRTSKDEF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEHSREQSTRTSKDEF
*  INTO TABLE @DATA(IT_CEHSREQSTRTSKDEF2).
*--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_CEHSREQSTRTSKDEF INDEX 1 INTO DATA(WA_CEHSREQSTRTSKDEF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEHSREQSTRTSKDEF>-MANDT = 1.
<CEHSREQSTRTSKDEF>-EHSTASKDEFINITIONUUID = 1.
<CEHSREQSTRTSKDEF>-EHSCMPLNCRQMTSTRUCTUREUUID = 1.
<CEHSREQSTRTSKDEF>-EHSTASKWORKFLOWEVENT = 1.
<CEHSREQSTRTSKDEF>-EHSTASKHOSTOBJECTINSTANCEUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEHSREQSTRTSKDEF-EHSTASKHOSTOBJECTINSTANCE, sy-vline,
  WA_CEHSREQSTRTSKDEF-EHSTASKHOSTOBJECTADAPTERCLASS, sy-vline,
  WA_CEHSREQSTRTSKDEF-EHSTASKPRIORITY, sy-vline,
  WA_CEHSREQSTRTSKDEF-EHSTASKASSIGNEDUSER, sy-vline,
  WA_CEHSREQSTRTSKDEF-EHSTASKASSIGNEDUSERNAME, sy-vline,
  WA_CEHSREQSTRTSKDEF-EHSTASKOWNERUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEHSREQSTRTSKDEF 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_CEHSREQSTRTSKDEF 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_CEHSREQSTRTSKDEF INTO WA_CEHSREQSTRTSKDEF.


*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 EHSTASKASSIGNEDUSER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEHSREQSTRTSKDEF-EHSTASKASSIGNEDUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEHSREQSTRTSKDEF-EHSTASKASSIGNEDUSER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EHSTASKOWNERUSER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEHSREQSTRTSKDEF-EHSTASKOWNERUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEHSREQSTRTSKDEF-EHSTASKOWNERUSER.
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_CEHSREQSTRTSKDEF_STR, 
MANDT TYPE STRING,
EHSTASKDEFINITIONUUID TYPE STRING,
EHSCMPLNCRQMTSTRUCTUREUUID TYPE STRING,
EHSTASKWORKFLOWEVENT TYPE STRING,
EHSTASKHOSTOBJECTINSTANCEUUID TYPE STRING,
EHSTASKHOSTOBJECTINSTANCE TYPE STRING,
EHSTASKHOSTOBJECTADAPTERCLASS TYPE STRING,
EHSTASKPRIORITY TYPE STRING,
EHSTASKASSIGNEDUSER TYPE STRING,
EHSTASKASSIGNEDUSERNAME TYPE STRING,
EHSTASKOWNERUSER TYPE STRING,
EHSTASKOWNERUSERNAME TYPE STRING,
EHSTASKTITLE TYPE STRING,
EHSTASKSTARTDATE TYPE STRING,
EHSTASKDUEINVALUE TYPE STRING,
EHSTASKDUEINUNIT TYPE STRING,
EHSTASKDUEDATE TYPE STRING,
EHSTASKRECURRENCETYPE TYPE STRING,
EHSTASKRECURRENCEINTERVAL TYPE STRING,
EHSTASKISRECURRINGONMONDAY TYPE STRING,
EHSTASKISRECURRINGONTUESDAY TYPE STRING,
EHSTASKISRECURRINGONWEDNESDAY TYPE STRING,
EHSTASKISRECURRINGONTHURSDAY TYPE STRING,
EHSTASKISRECURRINGONFRIDAY TYPE STRING,
EHSTASKISRECURRINGONSATURDAY TYPE STRING,
EHSTASKISRECURRINGONSUNDAY TYPE STRING,
EHSTASKRECURRENCEDAY TYPE STRING,
EHSTASKRECURRENCEMONTH TYPE STRING,
EHSTASKRECURRENCEOFFSET TYPE STRING,
EHSTASKRECURRENCEWEEKDAY TYPE STRING,
EHSTASKRECURRENCEENDTYPE TYPE STRING,
EHSTASKRECURRENCEENDDATE TYPE STRING,
EHSTASKDEFINITIONISPAUSED TYPE STRING,
EHSTASKID TYPE STRING,
EHSLOCATIONUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEHSREQSTRTSKDEF_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_CEHSREQSTRTSKDEF_STR-MANDT sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKDEFINITIONUUID sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSCMPLNCRQMTSTRUCTUREUUID sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKWORKFLOWEVENT sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKHOSTOBJECTINSTANCEUUID sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKHOSTOBJECTINSTANCE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKHOSTOBJECTADAPTERCLASS sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKPRIORITY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKASSIGNEDUSER sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKASSIGNEDUSERNAME sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKOWNERUSER sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKOWNERUSERNAME sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKTITLE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKSTARTDATE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKDUEINVALUE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKDUEINUNIT sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKDUEDATE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCETYPE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCEINTERVAL sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKISRECURRINGONMONDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKISRECURRINGONTUESDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKISRECURRINGONWEDNESDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKISRECURRINGONTHURSDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKISRECURRINGONFRIDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKISRECURRINGONSATURDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKISRECURRINGONSUNDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCEDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCEMONTH sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCEOFFSET sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCEWEEKDAY sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCEENDTYPE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKRECURRENCEENDDATE sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKDEFINITIONISPAUSED sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSTASKID sy-vline 
WA_CEHSREQSTRTSKDEF_STR-EHSLOCATIONUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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