ABAP Select data from SAP table TSKPA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TSKPA
*  INTO TABLE @DATA(IT_TSKPA2).
*--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_TSKPA INDEX 1 INTO DATA(WA_TSKPA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TSKPA>-TYP = 1.
<TSKPA>-SERVICE = 1.
<TSKPA>-COUNTRY = 1.
<TSKPA>-TELNR = 1.
<TSKPA>-SCHEDULE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TSKPA-DATE, sy-vline,
  WA_TSKPA-TIME, sy-vline,
  WA_TSKPA-DIALOG, sy-vline,
  WA_TSKPA-HOLD, sy-vline,
  WA_TSKPA-UNAME, sy-vline,
  WA_TSKPA-ONAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TSKPA 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_TSKPA 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_TSKPA INTO WA_TSKPA.


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

*Conversion exit SPDEV, internal->external for field HCOPY
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_TSKPA-HCOPY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TSKPA-HCOPY.
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_TSKPA_STR, 
TYP TYPE STRING,
SERVICE TYPE STRING,
COUNTRY TYPE STRING,
TELNR TYPE STRING,
SCHEDULE TYPE STRING,
DATE TYPE STRING,
TIME TYPE STRING,
DIALOG TYPE STRING,
HOLD TYPE STRING,
UNAME TYPE STRING,
ONAME TYPE STRING,
OFNAME TYPE STRING,
OCOMPANY TYPE STRING,
ODEPT TYPE STRING,
OTEL TYPE STRING,
OOWNNBR TYPE STRING,
RNAME TYPE STRING,
RFNAME TYPE STRING,
RCOMPANY TYPE STRING,
RDEPT TYPE STRING,
BUKRS TYPE STRING,
KOSTL TYPE STRING,
KEEPDAY TYPE STRING,
LANG TYPE STRING,
HCOPY TYPE STRING,
C_TRANS TYPE STRING,
CB_PARA TYPE STRING,
CB_REP TYPE STRING,
CB_FORM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TSKPA_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_TSKPA_STR-TYP sy-vline 
WA_TSKPA_STR-SERVICE sy-vline 
WA_TSKPA_STR-COUNTRY sy-vline 
WA_TSKPA_STR-TELNR sy-vline 
WA_TSKPA_STR-SCHEDULE sy-vline 
WA_TSKPA_STR-DATE sy-vline 
WA_TSKPA_STR-TIME sy-vline 
WA_TSKPA_STR-DIALOG sy-vline 
WA_TSKPA_STR-HOLD sy-vline 
WA_TSKPA_STR-UNAME sy-vline 
WA_TSKPA_STR-ONAME sy-vline 
WA_TSKPA_STR-OFNAME sy-vline 
WA_TSKPA_STR-OCOMPANY sy-vline 
WA_TSKPA_STR-ODEPT sy-vline 
WA_TSKPA_STR-OTEL sy-vline 
WA_TSKPA_STR-OOWNNBR sy-vline 
WA_TSKPA_STR-RNAME sy-vline 
WA_TSKPA_STR-RFNAME sy-vline 
WA_TSKPA_STR-RCOMPANY sy-vline 
WA_TSKPA_STR-RDEPT sy-vline 
WA_TSKPA_STR-BUKRS sy-vline 
WA_TSKPA_STR-KOSTL sy-vline 
WA_TSKPA_STR-KEEPDAY sy-vline 
WA_TSKPA_STR-LANG sy-vline 
WA_TSKPA_STR-HCOPY sy-vline 
WA_TSKPA_STR-C_TRANS sy-vline 
WA_TSKPA_STR-CB_PARA sy-vline 
WA_TSKPA_STR-CB_REP sy-vline 
WA_TSKPA_STR-CB_FORM sy-vline      INTO ld_text SEPARATED BY SPACE.

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