ABAP Select data from SAP table GRACUSERACTVL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRACUSERACTVL
*  INTO TABLE @DATA(IT_GRACUSERACTVL2).
*--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_GRACUSERACTVL INDEX 1 INTO DATA(WA_GRACUSERACTVL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRACUSERACTVL>-MANDT = 1.
<GRACUSERACTVL>-USERID = 1.
<GRACUSERACTVL>-XCONNECTOR = 1.
<GRACUSERACTVL>-SEQUENCE = 1.
<GRACUSERACTVL>-RISKID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRACUSERACTVL-ACTRULEID, sy-vline,
  WA_GRACUSERACTVL-FUNCTID, sy-vline,
  WA_GRACUSERACTVL-CONNECTOR, sy-vline,
  WA_GRACUSERACTVL-ACTION, sy-vline,
  WA_GRACUSERACTVL-ROLEID, sy-vline,
  WA_GRACUSERACTVL-COMPROLEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRACUSERACTVL 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_GRACUSERACTVL 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_GRACUSERACTVL INTO WA_GRACUSERACTVL.


*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 UPDT, internal->external for field RUNTIME
CALL FUNCTION 'CONVERSION_EXIT_UPDT_OUTPUT'
  EXPORTING
    input =                      WA_GRACUSERACTVL-RUNTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRACUSERACTVL-RUNTIME.
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_GRACUSERACTVL_STR, 
MANDT TYPE STRING,
USERID TYPE STRING,
XCONNECTOR TYPE STRING,
SEQUENCE TYPE STRING,
RISKID TYPE STRING,
ACTRULEID TYPE STRING,
FUNCTID TYPE STRING,
CONNECTOR TYPE STRING,
ACTION TYPE STRING,
ROLEID TYPE STRING,
COMPROLEID TYPE STRING,
PROFILEID TYPE STRING,
ACCONTROLID TYPE STRING,
MONITOR TYPE STRING,
RUNTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRACUSERACTVL_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_GRACUSERACTVL_STR-MANDT sy-vline 
WA_GRACUSERACTVL_STR-USERID sy-vline 
WA_GRACUSERACTVL_STR-XCONNECTOR sy-vline 
WA_GRACUSERACTVL_STR-SEQUENCE sy-vline 
WA_GRACUSERACTVL_STR-RISKID sy-vline 
WA_GRACUSERACTVL_STR-ACTRULEID sy-vline 
WA_GRACUSERACTVL_STR-FUNCTID sy-vline 
WA_GRACUSERACTVL_STR-CONNECTOR sy-vline 
WA_GRACUSERACTVL_STR-ACTION sy-vline 
WA_GRACUSERACTVL_STR-ROLEID sy-vline 
WA_GRACUSERACTVL_STR-COMPROLEID sy-vline 
WA_GRACUSERACTVL_STR-PROFILEID sy-vline 
WA_GRACUSERACTVL_STR-ACCONTROLID sy-vline 
WA_GRACUSERACTVL_STR-MONITOR sy-vline 
WA_GRACUSERACTVL_STR-RUNTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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