ABAP Select data from SAP table TSKTY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TSKTY
*  INTO TABLE @DATA(IT_TSKTY2).
*--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_TSKTY INDEX 1 INTO DATA(WA_TSKTY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TSKTY>-UNAME = 1.
<TSKTY>-SHOWNEW = 1.
<TSKTY>-SHOWMOD = 1.
<TSKTY>-SHOWGOOD = 1.
<TSKTY>-REMARK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TSKTY-EXPERT, sy-vline,
  WA_TSKTY-AUTOQUIT, sy-vline,
  WA_TSKTY-ASSISTANT, sy-vline,
  WA_TSKTY-SHOWKEY, sy-vline,
  WA_TSKTY-PROPOSAL, sy-vline,
  WA_TSKTY-AUTOPROP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TSKTY 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_TSKTY 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_TSKTY INTO WA_TSKTY.


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

*Conversion exit ISOLA, internal->external for field TLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_TSKTY-TLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TSKTY-TLANG.
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_TSKTY_STR, 
UNAME TYPE STRING,
SHOWNEW TYPE STRING,
SHOWMOD TYPE STRING,
SHOWGOOD TYPE STRING,
REMARK TYPE STRING,
EXPERT TYPE STRING,
AUTOQUIT TYPE STRING,
ASSISTANT TYPE STRING,
SHOWKEY TYPE STRING,
PROPOSAL TYPE STRING,
AUTOPROP TYPE STRING,
SLANG TYPE STRING,
TLANG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TSKTY_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_TSKTY_STR-UNAME sy-vline 
WA_TSKTY_STR-SHOWNEW sy-vline 
WA_TSKTY_STR-SHOWMOD sy-vline 
WA_TSKTY_STR-SHOWGOOD sy-vline 
WA_TSKTY_STR-REMARK sy-vline 
WA_TSKTY_STR-EXPERT sy-vline 
WA_TSKTY_STR-AUTOQUIT sy-vline 
WA_TSKTY_STR-ASSISTANT sy-vline 
WA_TSKTY_STR-SHOWKEY sy-vline 
WA_TSKTY_STR-PROPOSAL sy-vline 
WA_TSKTY_STR-AUTOPROP sy-vline 
WA_TSKTY_STR-SLANG sy-vline 
WA_TSKTY_STR-TLANG sy-vline      INTO ld_text SEPARATED BY SPACE.

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