ABAP Select data from SAP table RFCSYSACL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFCSYSACL
*  INTO TABLE @DATA(IT_RFCSYSACL2).
*--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_RFCSYSACL INDEX 1 INTO DATA(WA_RFCSYSACL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFCSYSACL>-RFCSYSID = 1.
<RFCSYSACL>-TLICENSE_NR = 1.
<RFCSYSACL>-RFCTRUSTSY = 1.
<RFCSYSACL>-LLICENSE_NR = 1.
<RFCSYSACL>-RFCDEST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFCSYSACL-RFCCREDEST, sy-vline,
  WA_RFCSYSACL-RFCREGDEST, sy-vline,
  WA_RFCSYSACL-RFCMSGSRV, sy-vline,
  WA_RFCSYSACL-RFCGROUP, sy-vline,
  WA_RFCSYSACL-RFCSNC, sy-vline,
  WA_RFCSYSACL-RFCSECTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFCSYSACL 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_RFCSYSACL 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_RFCSYSACL INTO WA_RFCSYSACL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RFCSYSACL_STR, 
RFCSYSID TYPE STRING,
TLICENSE_NR TYPE STRING,
RFCTRUSTSY TYPE STRING,
LLICENSE_NR TYPE STRING,
RFCDEST TYPE STRING,
RFCCREDEST TYPE STRING,
RFCREGDEST TYPE STRING,
RFCMSGSRV TYPE STRING,
RFCGROUP TYPE STRING,
RFCSNC TYPE STRING,
RFCSECTYPE TYPE STRING,
RFCSECKEY TYPE STRING,
RFCDELAYT TYPE STRING,
RFCDELAYD TYPE STRING,
RFCPASSWD TYPE STRING,
RFCUSRCHK TYPE STRING,
RFCTCDCHK TYPE STRING,
RFCSECACTV TYPE STRING,
RFCTSTACTV TYPE STRING,
RFCATRUSER TYPE STRING,
RFCATRDATE TYPE STRING,
RFCCREUSER TYPE STRING,
RFCCREDATE TYPE STRING,
RFCSLOPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFCSYSACL_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_RFCSYSACL_STR-RFCSYSID sy-vline 
WA_RFCSYSACL_STR-TLICENSE_NR sy-vline 
WA_RFCSYSACL_STR-RFCTRUSTSY sy-vline 
WA_RFCSYSACL_STR-LLICENSE_NR sy-vline 
WA_RFCSYSACL_STR-RFCDEST sy-vline 
WA_RFCSYSACL_STR-RFCCREDEST sy-vline 
WA_RFCSYSACL_STR-RFCREGDEST sy-vline 
WA_RFCSYSACL_STR-RFCMSGSRV sy-vline 
WA_RFCSYSACL_STR-RFCGROUP sy-vline 
WA_RFCSYSACL_STR-RFCSNC sy-vline 
WA_RFCSYSACL_STR-RFCSECTYPE sy-vline 
WA_RFCSYSACL_STR-RFCSECKEY sy-vline 
WA_RFCSYSACL_STR-RFCDELAYT sy-vline 
WA_RFCSYSACL_STR-RFCDELAYD sy-vline 
WA_RFCSYSACL_STR-RFCPASSWD sy-vline 
WA_RFCSYSACL_STR-RFCUSRCHK sy-vline 
WA_RFCSYSACL_STR-RFCTCDCHK sy-vline 
WA_RFCSYSACL_STR-RFCSECACTV sy-vline 
WA_RFCSYSACL_STR-RFCTSTACTV sy-vline 
WA_RFCSYSACL_STR-RFCATRUSER sy-vline 
WA_RFCSYSACL_STR-RFCATRDATE sy-vline 
WA_RFCSYSACL_STR-RFCCREUSER sy-vline 
WA_RFCSYSACL_STR-RFCCREDATE sy-vline 
WA_RFCSYSACL_STR-RFCSLOPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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