Re: what's wrong with this...DBMS_SQL

Agreed, I should have stated, that it works with current version and might behave differently in future versions.
Though this is not the only feature, which can change in the future, so thorough testing when upgrading is required anyway. And oracle does not always say in docs, what could change in future releases.

Igor Neyman, OCP DBA
Perceptron, Inc.
(734)414-4627
ineyman_at_perceptron.com

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Tuesday, June 12, 2001 11:26 AM

> Igor, read the docs more carefully.
>
> it states that you should do the execute because the parse is NOT
guaranteed
> to work that way in the future.
>
> Do does it work without the execute, yes, will in work in the future,
maybe,
> just do the execute and don't worry about it :)
>
>
>
>
> right out of $ORACLE_HOME/rdbms/admin/dbmssql.sql
>
> procedure parse(c in integer, statement in varchar2,
> language_flag in integer);
> -- Parse the given statement in the given cursor. NOTE THAT PARSING AND
> -- EXECUTING DDL STATEMENTS CAN CAUSE HANGS!
> -- Currently, the deferred parsing feature of the Oracle Call
Interface
> is not used. As a result, statements are parsed immediately. In addition,
> DDL statements are executed immediately when parsed. However,the behavior
> may change in the future so that the actual parsing (and execution of DDL
> statement) do not occur until the cursor is executed with "execute".
>
> -- DO NOT RELY ON THE CURRENT TIMING OF THE ACTUAL PARSING!
>
> Joe
>
>
> >From: "Koivu, Lisa" <lisa.koivu_at_efairfield.com>
> >Reply-To: ORACLE-L_at_fatcity.com
> >To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> >Subject: RE: what's wrong with this...DBMS_SQL
> >Date: Tue, 12 Jun 2001 06:46:38 -0800
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> >Author: Koivu, Lisa INET: lisa.koivu_at_efairfield.com
> >
> >Thanks Igor for setting me straight. I don't see that in the doco but I
am
> >looking at 8.1.7.
> >
> >
> > > -----Original Message-----
> > > From: Igor Neyman [SMTP:ineyman_at_perceptron.com]
> > > Sent: Tuesday, June 12, 2001 9:31 AM
> > > To: Multiple recipients of list ORACLE-L
> > > Subject: Re: what's wrong with this...DBMS_SQL
> > >
> > > Lisa,
> > >
> > > You don't need DBMS_SQL.EXECUTE, when running other then DML
statements.
> > > DBMS_SQL.PARSE is enough.
> > >
> > > Igor Neyman, OCP DBA
> > > Perceptron, Inc.
> > > (734)414-4627
> > > ineyman_at_perceptron.com <mailto:ineyman_at_perceptron.com>
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: Koivu, Lisa <mailto:lisa.koivu_at_efairfield.com>
> > > To: Multiple recipients of list ORACLE-L
> > > <mailto:ORACLE-L_at_fatcity.com>
> > > Sent: Monday, June 11, 2001 5:55 PM
> > > Subject: RE: what's wrong with this...DBMS_SQL
> > >
> > >
> > > Surendra, you need to execute it. Look at the spec of dbms_sql (I
> > > want to say it's dbms_sql.execute()). Either that or use EXECUTE
> > > IMMEDIATE.
> > >
> > > Lisa Koivu
> > > Oracle Database Administrator
> > > 954-935-4117
> > >
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> > >
> > > -----Original Message-----
> > > From: Tirumala, Surendra [SMTP:Surendra.Tirumala_at_am.sony.com]
> > > Sent: Monday, June 11, 2001 4:55 PM
> > > To: Multiple recipients of list ORACLE-L
> > > Subject: what's wrong with this...DBMS_SQL
> > >
> > > Hi List,
> > >
> > > As the part of developing hot backup strategy, I am testing the
> > > following
> > > piece of code
> > > to take care of arch files to be made avaialable along with backup
> > > set.
> > >
> > > =====================
> > > SQL> create or replace procedure log_switch as
> > > 2 cursor1 integer;
> > > 3 begin
> > > 4 cur1 := dbms_sql.open_cursor;
> > > 5 dbms_sql.parse(cur1,'ALTER SYSTEM SWITCH LOGFILE',
> > > dbms_sql.v7);
> > > 6 dbms_sql.close_cursor(cur1);
> > > 7 end;
> > > 8 /
> > >
> > > Procedure created.
> > >
> > > SQL> execute log_switch;
> > >
> > > PL/SQL procedure successfully completed.
> > >
> > > ======================
> > >
> > > But, I have observed several times that the above code is not
> > > forcing a log
> > > switch.
> > > FYI, I want to track the sequence# of logfiles before and after the
> > > hot
> > > backup, so that
> > > I can backup the files in that range.
> > >
> > > Am I properly using the DBMS_SQL?
> > > Any help is highly appreciated
> > >
> > > TIA,
> > > Suren
> > > Oracle DBA
> > > Sony
> > > --
> > > Please see the official ORACLE-L FAQ: <http://www.orafaq.com>
> > > --
> > > Author: Tirumala, Surendra
> > > INET: Surendra.Tirumala_at_am.sony.com
> > >
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Igor Neyman
  INET: ineyman_at_perceptron.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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