ABAP Select data from SAP table SIM_RSUSR002_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SIM_RSUSR002_ALV 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 SIM_RSUSR002_ALV. 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 SIM_RSUSR002_ALV 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_SIM_RSUSR002_ALV TYPE STANDARD TABLE OF SIM_RSUSR002_ALV,
      WA_SIM_RSUSR002_ALV TYPE SIM_RSUSR002_ALV,
      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: <SIM_RSUSR002_ALV> TYPE SIM_RSUSR002_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SIM_RSUSR002_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SIM_RSUSR002_ALV
  INTO TABLE IT_SIM_RSUSR002_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIM_RSUSR002_ALV
*  INTO TABLE @DATA(IT_SIM_RSUSR002_ALV2).
*--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_SIM_RSUSR002_ALV INDEX 1 INTO DATA(WA_SIM_RSUSR002_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SIM_RSUSR002_ALV ASSIGNING <SIM_RSUSR002_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIM_RSUSR002_ALV>-CHECK = 1.
<SIM_RSUSR002_ALV>-BNAME = 1.
<SIM_RSUSR002_ALV>-CLASS = 1.
<SIM_RSUSR002_ALV>-LOCKICON = 1.
<SIM_RSUSR002_ALV>-LOCKREASON = 1.

ENDLOOP.

LOOP AT IT_SIM_RSUSR002_ALV INTO WA_SIM_RSUSR002_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIM_RSUSR002_ALV-GLTGV, sy-vline,
  WA_SIM_RSUSR002_ALV-GLTGB, sy-vline,
  WA_SIM_RSUSR002_ALV-ACCNT, sy-vline,
  WA_SIM_RSUSR002_ALV-USTYP, sy-vline,
  WA_SIM_RSUSR002_ALV-REFUSER, sy-vline,
  WA_SIM_RSUSR002_ALV-USERALIAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIM_RSUSR002_ALV 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_SIM_RSUSR002_ALV 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_SIM_RSUSR002_ALV INTO WA_SIM_RSUSR002_ALV.


*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 USTYP, internal->external for field USTYP
CALL FUNCTION 'CONVERSION_EXIT_USTYP_OUTPUT'
  EXPORTING
    input =                      WA_SIM_RSUSR002_ALV-USTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIM_RSUSR002_ALV-USTYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_SIM_RSUSR002_ALV-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIM_RSUSR002_ALV-EMAIL.
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_SIM_RSUSR002_ALV_STR, 
CHECK TYPE STRING,
BNAME TYPE STRING,
CLASS TYPE STRING,
LOCKICON TYPE STRING,
LOCKREASON TYPE STRING,
GLTGV TYPE STRING,
GLTGB TYPE STRING,
ACCNT TYPE STRING,
USTYP TYPE STRING,
REFUSER TYPE STRING,
USERALIAS TYPE STRING,
KOSTL TYPE STRING,
NAME_TEXT TYPE STRING,
DEPARTMENT TYPE STRING,
FUNCTION TYPE STRING,
BUILDING_C TYPE STRING,
FLOOR_C TYPE STRING,
ROOMNUM_C TYPE STRING,
TEL_NUMBER TYPE STRING,
TEL_EXTENS TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
POST_CODE1 TYPE STRING,
CITY1 TYPE STRING,
STREET TYPE STRING,
COUNTRY TYPE STRING,
TZONE TYPE STRING,
SECURITY_POLICY TYPE STRING,
EMAIL TYPE STRING,
INCONSIST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIM_RSUSR002_ALV_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_SIM_RSUSR002_ALV_STR-CHECK sy-vline 
WA_SIM_RSUSR002_ALV_STR-BNAME sy-vline 
WA_SIM_RSUSR002_ALV_STR-CLASS sy-vline 
WA_SIM_RSUSR002_ALV_STR-LOCKICON sy-vline 
WA_SIM_RSUSR002_ALV_STR-LOCKREASON sy-vline 
WA_SIM_RSUSR002_ALV_STR-GLTGV sy-vline 
WA_SIM_RSUSR002_ALV_STR-GLTGB sy-vline 
WA_SIM_RSUSR002_ALV_STR-ACCNT sy-vline 
WA_SIM_RSUSR002_ALV_STR-USTYP sy-vline 
WA_SIM_RSUSR002_ALV_STR-REFUSER sy-vline 
WA_SIM_RSUSR002_ALV_STR-USERALIAS sy-vline 
WA_SIM_RSUSR002_ALV_STR-KOSTL sy-vline 
WA_SIM_RSUSR002_ALV_STR-NAME_TEXT sy-vline 
WA_SIM_RSUSR002_ALV_STR-DEPARTMENT sy-vline 
WA_SIM_RSUSR002_ALV_STR-FUNCTION sy-vline 
WA_SIM_RSUSR002_ALV_STR-BUILDING_C sy-vline 
WA_SIM_RSUSR002_ALV_STR-FLOOR_C sy-vline 
WA_SIM_RSUSR002_ALV_STR-ROOMNUM_C sy-vline 
WA_SIM_RSUSR002_ALV_STR-TEL_NUMBER sy-vline 
WA_SIM_RSUSR002_ALV_STR-TEL_EXTENS sy-vline 
WA_SIM_RSUSR002_ALV_STR-NAME1 sy-vline 
WA_SIM_RSUSR002_ALV_STR-NAME2 sy-vline 
WA_SIM_RSUSR002_ALV_STR-NAME3 sy-vline 
WA_SIM_RSUSR002_ALV_STR-NAME4 sy-vline 
WA_SIM_RSUSR002_ALV_STR-POST_CODE1 sy-vline 
WA_SIM_RSUSR002_ALV_STR-CITY1 sy-vline 
WA_SIM_RSUSR002_ALV_STR-STREET sy-vline 
WA_SIM_RSUSR002_ALV_STR-COUNTRY sy-vline 
WA_SIM_RSUSR002_ALV_STR-TZONE sy-vline 
WA_SIM_RSUSR002_ALV_STR-SECURITY_POLICY sy-vline 
WA_SIM_RSUSR002_ALV_STR-EMAIL sy-vline 
WA_SIM_RSUSR002_ALV_STR-INCONSIST sy-vline      INTO ld_text SEPARATED BY SPACE.

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