Re: Locking over a DB link
- From: "Jason Heinrich" <jheinrichdba@xxxxxxxxx>
- To: "Goulet, Richard" <Richard.Goulet@xxxxxxxxxxx>
- Date: Tue, 9 Dec 2008 15:26:05 -0600
Hmm. I think I need to brush up on the different types of locks. In the
meantime, could this remote lock prevent the logical standby from applying
DML to those tables?
On Tue, Dec 9, 2008 at 3:11 PM, Goulet, Richard
<Richard.Goulet@xxxxxxxxxxx>wrote:
> OH DEAR, talk about going back in time!! Yes, this type of transaction
> will cause a lock on the remote database, similar to if you were doing the
> same thing on the local database. Oracle does this so that no one changes
> the definition of the table in mid stream. Now if I remember correctly the
> lock does not get released till either the local session ends or the
> database link is closed.
>
>
> *Dick Goulet***
> Senior Oracle DBA
> PAREXEL International
> 978.313.3426
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> ------------------------------
> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Jason Heinrich
> *Sent:* Tuesday, December 09, 2008 3:48 PM
> *To:* Oracle List
> *Subject:* Locking over a DB link
>
> I was wondering if it was possible for SQL similar to the following to
> cause a lock to be created on the remote database:
>
> insert into localtable
> (select columns from remotetable@dblink where <some condition>);
>
> My first reaction was no, but I thought I remembered locking oddities over
> links being discussed before. So far I haven't found anything useful in my
> searches though.
>
> --
> Jason Heinrich
>
--
Jason Heinrich
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