ABAP Select data from SAP table USRINKONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USRINKONS
*  INTO TABLE @DATA(IT_USRINKONS2).
*--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_USRINKONS INDEX 1 INTO DATA(WA_USRINKONS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USRINKONS>-MODIFIER = 1.
<USRINKONS>-DEVCLASS = 1.
<USRINKONS>-PROFN = 1.
<USRINKONS>-OCLSS = 1.
<USRINKONS>-OBJCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USRINKONS-AUTH, sy-vline,
  WA_USRINKONS-AKTPS, sy-vline,
  WA_USRINKONS-OTEXT, sy-vline,
  WA_USRINKONS-TCODE, sy-vline,
  WA_USRINKONS-TTYPE, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_USRINKONS 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_USRINKONS 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_USRINKONS INTO WA_USRINKONS.


*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 AKTPA, internal->external for field AKTPS
CALL FUNCTION 'CONVERSION_EXIT_AKTPA_OUTPUT'
  EXPORTING
    input =                      WA_USRINKONS-AKTPS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USRINKONS-AKTPS.
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_USRINKONS_STR, 
MODIFIER TYPE STRING,
DEVCLASS TYPE STRING,
PROFN TYPE STRING,
OCLSS TYPE STRING,
OBJCT TYPE STRING,
AUTH TYPE STRING,
AKTPS TYPE STRING,
OTEXT TYPE STRING,
TCODE TYPE STRING,
TTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USRINKONS_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_USRINKONS_STR-MODIFIER sy-vline 
WA_USRINKONS_STR-DEVCLASS sy-vline 
WA_USRINKONS_STR-PROFN sy-vline 
WA_USRINKONS_STR-OCLSS sy-vline 
WA_USRINKONS_STR-OBJCT sy-vline 
WA_USRINKONS_STR-AUTH sy-vline 
WA_USRINKONS_STR-AKTPS sy-vline 
WA_USRINKONS_STR-OTEXT sy-vline 
WA_USRINKONS_STR-TCODE sy-vline 
WA_USRINKONS_STR-TTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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