ABAP Select data from SAP table APS_S_OMFORM_I_TTASK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APS_S_OMFORM_I_TTASK
*  INTO TABLE @DATA(IT_APS_S_OMFORM_I_TTASK2).
*--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_APS_S_OMFORM_I_TTASK INDEX 1 INTO DATA(WA_APS_S_OMFORM_I_TTASK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APS_S_OMFORM_I_TTASK>-KEY = 1.
<APS_S_OMFORM_I_TTASK>-PARENT_KEY = 1.
<APS_S_OMFORM_I_TTASK>-ROOT_KEY = 1.
<APS_S_OMFORM_I_TTASK>-TASKID = 1.
<APS_S_OMFORM_I_TTASK>-FORM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APS_S_OMFORM_I_TTASK-LANGUAGE, sy-vline,
  WA_APS_S_OMFORM_I_TTASK-SOURCE_L, sy-vline,
  WA_APS_S_OMFORM_I_TTASK-CHANGEDAT, sy-vline,
  WA_APS_S_OMFORM_I_TTASK-CREATEDAT, sy-vline,
  WA_APS_S_OMFORM_I_TTASK-CREATEDBY, sy-vline,
  WA_APS_S_OMFORM_I_TTASK-CHANGEDBY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APS_S_OMFORM_I_TTASK 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_APS_S_OMFORM_I_TTASK 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_APS_S_OMFORM_I_TTASK INTO WA_APS_S_OMFORM_I_TTASK.


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

*Conversion exit ISOLA, internal->external for field SOURCE_L
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_APS_S_OMFORM_I_TTASK-SOURCE_L
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APS_S_OMFORM_I_TTASK-SOURCE_L.
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_APS_S_OMFORM_I_TTASK_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
TASKID TYPE STRING,
FORM TYPE STRING,
LANGUAGE TYPE STRING,
SOURCE_L TYPE STRING,
CHANGEDAT TYPE STRING,
CREATEDAT TYPE STRING,
CREATEDBY TYPE STRING,
CHANGEDBY TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APS_S_OMFORM_I_TTASK_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_APS_S_OMFORM_I_TTASK_STR-KEY sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-PARENT_KEY sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-ROOT_KEY sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-TASKID sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-FORM sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-LANGUAGE sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-SOURCE_L sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-CHANGEDAT sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-CREATEDAT sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-CREATEDBY sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-CHANGEDBY sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-HASACTIVEENTITY sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_APS_S_OMFORM_I_TTASK_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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