Re: Function Calling In View

I have removed dbms_sql calls from the functions and it worked. However if i use pragma with dbms_Sql then it doesn't compile even. may be any method inside dbms_sql modifies databse state.

Thank to every one who responded
Azhar

• Original Message ----- From: Dara Vaughn <dara.vaughn_at_wcom.com> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Sent: Tuesday, December 05, 2000 9:46 PM Subject: RE: Function Calling In View

> Azhar,
>
> In the function definition, you have to use a compiler directive. Look up
> the following in the Oracle7 documentation for more information:
>
> pragma restrict_references(your_function_name,WNDS);
>
> This tells the PL/SQL compiler (at compile time) that you are guaranteeing
> that this function will not update the database.
> The WNDS stands for Writes No Database State; i.e. Does not update the
> database.
>
> This compiler directive is no longer required in Oracle 8i.
>
> Dara Vaughn
> Oracle DBA
> Quality Software Engineering
>
>
> -----Original Message-----
> Sent: Tuesday, December 05, 2000 8:22 AM
> To: Multiple recipients of list ORACLE-L
>
>
> hi all,
>
> I have sql script which connect two databases and create views on local
> database which select data from remote database. All data is on the
remote
> databse. Beside selecting data , some user-defined functions (which also
> make decisions on the basis of remote database tables) are also being
called
> in select statements. DBMS_SQL package is used to create views on the
local
> side.
>
> "The script works fine on oracle 8i , but it gives following error on the
> oracle 7.3 "
>
>
> SETDISTANCEUOM('newlink'), NULL, fh.record_changed
> *
> ERROR at line 23:
> ORA-06571: Function SETDISTANCEUOM does not guarantee not to update
database
>
> Since function call fails , view is not created on the local database.
>
>
> Any ideas ,Suggestions Please Help.
> Azhar
> ===============================
> --Sample code is given below.View and functions are created as
> CREATE OR REPLACE FUNCTION SETDISTANCEUOM (pdblink varchar2 default NULL)
> RETURN VARCHAR2
> IS
> vdistance VARCHAR2(100);
> vcurs number;
> vsqltxt varchar2(300);
> vstatus number;
> BEGIN
> vsqltxt:='SELECT default_value FROM project_defaults@' ||pdblink||' WHERE
> default_name = ''HORIZONTOL_UOM''';
> vcurs := dbms_sql.open_cursor;
> dbms_sql.parse(vcurs,vsqltxt,dbms_sql.v7);
> dbms_sql.define_column(vcurs,1,vdistance,100);
> vstatus := dbms_sql.execute(vcurs);
> vstatus:=dbms_sql.fetch_rows(vcurs);
> dbms_sql.column_value(vcurs,1,vdistance);
> dbms_sql.close_cursor(vcurs);
> RETURN vdistance;
> EXCEPTION WHEN OTHERS THEN
> RETURN '';
> END;
>
> Create or Replace View
> oe_ldv_vc_company(company_name,parent_company_name,company_abbrev,
> company_code,remark,create_date,update_date)
> AS
> (Select bs.SETDISTANCEUOM('&&linkname'),null,substr(bs.assoc_id,1,7),
> bs.assoc_id,bs.source,null,null
> from business_assoc@&&linkname bs)
>
>
>
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Azhar
> INET: azhar_at_mathtech-pk.com
>
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Dara Vaughn
> INET: dara.vaughn_at_wcom.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
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Received on Wed Dec 06 2000 - 23:50:45 CST