ABAP Select data from SAP table IACTLSKF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACTLSKF
*  INTO TABLE @DATA(IT_IACTLSKF2).
*--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_IACTLSKF INDEX 1 INTO DATA(WA_IACTLSKF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACTLSKF>-MANDT = 1.
<IACTLSKF>-CONTROLLINGAREA = 1.
<IACTLSKF>-ACCOUNTINGDOCUMENT = 1.
<IACTLSKF>-ACCOUNTINGDOCUMENTITEM = 1.
<IACTLSKF>-POSTINGPERIOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACTLSKF-STATISTICALKEYFIGUREQUANTITY, sy-vline,
  WA_IACTLSKF-STSTCKEYFIGQUANTITYUNIT, sy-vline,
  WA_IACTLSKF-CONTROLLINGOBJECT, sy-vline,
  WA_IACTLSKF-FISCALYEAR, sy-vline,
  WA_IACTLSKF-STATISTICALKEYFIGURE, sy-vline,
  WA_IACTLSKF-CONTROLLINGBUSTRANSACTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACTLSKF 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_IACTLSKF 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_IACTLSKF INTO WA_IACTLSKF.


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

*Conversion exit CUNIT, internal->external for field STSTCKEYFIGQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IACTLSKF-STSTCKEYFIGQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACTLSKF-STSTCKEYFIGQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IACTLSKF-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACTLSKF-FISCALYEAR.
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_IACTLSKF_STR, 
MANDT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
POSTINGPERIOD TYPE STRING,
STATISTICALKEYFIGUREQUANTITY TYPE STRING,
STSTCKEYFIGQUANTITYUNIT TYPE STRING,
CONTROLLINGOBJECT TYPE STRING,
FISCALYEAR TYPE STRING,
STATISTICALKEYFIGURE TYPE STRING,
CONTROLLINGBUSTRANSACTYPE TYPE STRING,
PERSONNELNUMBER TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
CONTROLLINGAREACURRENCY TYPE STRING,
ISREVERSALDOCUMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACTLSKF_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_IACTLSKF_STR-MANDT sy-vline 
WA_IACTLSKF_STR-CONTROLLINGAREA sy-vline 
WA_IACTLSKF_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IACTLSKF_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_IACTLSKF_STR-POSTINGPERIOD sy-vline 
WA_IACTLSKF_STR-STATISTICALKEYFIGUREQUANTITY sy-vline 
WA_IACTLSKF_STR-STSTCKEYFIGQUANTITYUNIT sy-vline 
WA_IACTLSKF_STR-CONTROLLINGOBJECT sy-vline 
WA_IACTLSKF_STR-FISCALYEAR sy-vline 
WA_IACTLSKF_STR-STATISTICALKEYFIGURE sy-vline 
WA_IACTLSKF_STR-CONTROLLINGBUSTRANSACTYPE sy-vline 
WA_IACTLSKF_STR-PERSONNELNUMBER sy-vline 
WA_IACTLSKF_STR-POSTINGDATE sy-vline 
WA_IACTLSKF_STR-DOCUMENTDATE sy-vline 
WA_IACTLSKF_STR-CONTROLLINGAREACURRENCY sy-vline 
WA_IACTLSKF_STR-ISREVERSALDOCUMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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