On Sat, 2003-03-08 at 13:11, Tim Bunce wrote:
> On Fri, Mar 07, 2003 at 04:28:33PM -0800, Michael Peppler wrote:
> > On Fri, 2003-03-07 at 14:15, Tim Bunce wrote:
> > > I'd appreciate a summary of which drivers support some form of
> > > ``last insert id'' and details of the interface they provide.
> > > 
> > > Specifically...
> > >   via an attribute or method?
> > >   at the sth or dbh level, or both?
> > >   any other details that might be relevant...
> > > 
> > > Also, for databases that do _not_ support a ``last insert id''
> > > concept in the client API, are there any SQL mechanisms for finding
> > > the last insert id?

> > 
> > Note that you *can't* get at the @@identity value if you insert data
> > using placeholders. This is because Sybase also localizes the
> > @@variables within each stored procedure, and when using placeholders
> > Sybase creates a temporary stored procedure for you on the fly.
> > 

> Could the generated temporary stored procedure copy @@identity to
> a non-localized session variable (where it could then be read by
> DBD::Sybase if the application wants the last_insert_id)?

Unfortuantely no. YOu have no control over the content of the temp.
stored proc beyond the actual insert statement.

Michael
-- 
Michael Peppler                              Data Migrations, Inc.
[EMAIL PROTECTED]                 http://www.mbay.net/~mpeppler
Sybase T-SQL/OpenClient/OpenServer/C/Perl developer available for short or 
long term contract positions - http://www.mbay.net/~mpeppler/resume.html

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