ABAP Select data from SAP table VUSRACL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VUSRACL
*  INTO TABLE @DATA(IT_VUSRACL2).
*--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_VUSRACL INDEX 1 INTO DATA(WA_VUSRACL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VUSRACL>-MANDT = 1.
<VUSRACL>-BNAME = 1.
<VUSRACL>-SNC_SID = 1.
<VUSRACL>-GUIFLAG = 1.
<VUSRACL>-PNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VUSRACL-HNAME, sy-vline,
  WA_VUSRACL-CNAME, sy-vline,
  WA_VUSRACL-CDATE, sy-vline,
  WA_VUSRACL-CTIME, sy-vline,
  WA_VUSRACL-MNAME, sy-vline,
  WA_VUSRACL-MDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VUSRACL 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_VUSRACL 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_VUSRACL INTO WA_VUSRACL.


*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_VUSRACL_STR, 
MANDT TYPE STRING,
BNAME TYPE STRING,
SNC_SID TYPE STRING,
GUIFLAG TYPE STRING,
PNAME TYPE STRING,
HNAME TYPE STRING,
CNAME TYPE STRING,
CDATE TYPE STRING,
CTIME TYPE STRING,
MNAME TYPE STRING,
MDATE TYPE STRING,
MTIME TYPE STRING,
CHKVERSION TYPE STRING,
CHKVAL TYPE STRING,
RESERVE TYPE STRING,
KNAMELEN TYPE STRING,
KNAME TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VUSRACL_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_VUSRACL_STR-MANDT sy-vline 
WA_VUSRACL_STR-BNAME sy-vline 
WA_VUSRACL_STR-SNC_SID sy-vline 
WA_VUSRACL_STR-GUIFLAG sy-vline 
WA_VUSRACL_STR-PNAME sy-vline 
WA_VUSRACL_STR-HNAME sy-vline 
WA_VUSRACL_STR-CNAME sy-vline 
WA_VUSRACL_STR-CDATE sy-vline 
WA_VUSRACL_STR-CTIME sy-vline 
WA_VUSRACL_STR-MNAME sy-vline 
WA_VUSRACL_STR-MDATE sy-vline 
WA_VUSRACL_STR-MTIME sy-vline 
WA_VUSRACL_STR-CHKVERSION sy-vline 
WA_VUSRACL_STR-CHKVAL sy-vline 
WA_VUSRACL_STR-RESERVE sy-vline 
WA_VUSRACL_STR-KNAMELEN sy-vline 
WA_VUSRACL_STR-KNAME sy-vline 
WA_VUSRACL_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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