ABAP Select data from SAP table IADMWRKFLWTASK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IADMWRKFLWTASK
*  INTO TABLE @DATA(IT_IADMWRKFLWTASK2).
*--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_IADMWRKFLWTASK INDEX 1 INTO DATA(WA_IADMWRKFLWTASK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IADMWRKFLWTASK>-MANDT = 1.
<IADMWRKFLWTASK>-WORKFLOWTASKINTERNALID = 1.
<IADMWRKFLWTASK>-WORKFLOWINTERNALID = 1.
<IADMWRKFLWTASK>-WORKFLOWAGENTRULETEXT = 1.
<IADMWRKFLWTASK>-PERSONFULLNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IADMWRKFLWTASK-WORKFLOWSTEPRESULTTEXT, sy-vline,
  WA_IADMWRKFLWTASK-WRKFLWTSKCREATIONUTCDATETIME, sy-vline,
  WA_IADMWRKFLWTASK-WRKFLWTSKCOMPLETIONUTCDATETIME, sy-vline,
  WA_IADMWRKFLWTASK-FALLBACKLANGUAGE, sy-vline,
  WA_IADMWRKFLWTASK-WFINSTFALLBACKLANGUAGE, sy-vline,
  WA_IADMWRKFLWTASK-WORKFLOWSTEPTYPESUBJECT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IADMWRKFLWTASK 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_IADMWRKFLWTASK 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_IADMWRKFLWTASK INTO WA_IADMWRKFLWTASK.


*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 FALLBACKLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IADMWRKFLWTASK-FALLBACKLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IADMWRKFLWTASK-FALLBACKLANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field WFINSTFALLBACKLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IADMWRKFLWTASK-WFINSTFALLBACKLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IADMWRKFLWTASK-WFINSTFALLBACKLANGUAGE.
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_IADMWRKFLWTASK_STR, 
MANDT TYPE STRING,
WORKFLOWTASKINTERNALID TYPE STRING,
WORKFLOWINTERNALID TYPE STRING,
WORKFLOWAGENTRULETEXT TYPE STRING,
PERSONFULLNAME TYPE STRING,
WORKFLOWSTEPRESULTTEXT TYPE STRING,
WRKFLWTSKCREATIONUTCDATETIME TYPE STRING,
WRKFLWTSKCOMPLETIONUTCDATETIME TYPE STRING,
FALLBACKLANGUAGE TYPE STRING,
WFINSTFALLBACKLANGUAGE TYPE STRING,
WORKFLOWSTEPTYPESUBJECT TYPE STRING,
WORKFLOWTASKNAME TYPE STRING,
WORKFLOWTASKEXTERNALSTATUS TYPE STRING,
LOGNAME TYPE STRING,
WORKFLOWSCENARIODEFINITION TYPE STRING,
WORKFLOWSTEPRESULTTEXTFB TYPE STRING,
WORKFLOWTASKNAMEFB TYPE STRING,
WORKFLOWSTEPTYPESUBJECTFB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IADMWRKFLWTASK_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_IADMWRKFLWTASK_STR-MANDT sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWTASKINTERNALID sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWINTERNALID sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWAGENTRULETEXT sy-vline 
WA_IADMWRKFLWTASK_STR-PERSONFULLNAME sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWSTEPRESULTTEXT sy-vline 
WA_IADMWRKFLWTASK_STR-WRKFLWTSKCREATIONUTCDATETIME sy-vline 
WA_IADMWRKFLWTASK_STR-WRKFLWTSKCOMPLETIONUTCDATETIME sy-vline 
WA_IADMWRKFLWTASK_STR-FALLBACKLANGUAGE sy-vline 
WA_IADMWRKFLWTASK_STR-WFINSTFALLBACKLANGUAGE sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWSTEPTYPESUBJECT sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWTASKNAME sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWTASKEXTERNALSTATUS sy-vline 
WA_IADMWRKFLWTASK_STR-LOGNAME sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWSCENARIODEFINITION sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWSTEPRESULTTEXTFB sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWTASKNAMEFB sy-vline 
WA_IADMWRKFLWTASK_STR-WORKFLOWSTEPTYPESUBJECTFB sy-vline      INTO ld_text SEPARATED BY SPACE.

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