Is this valid on Oracle as well, or just mysql? If not, is there any "universal" way to do it?
Thanks, Elizabeth Baron -----Original Message----- From: Martin Cooper [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 01, 2002 1:47 PM To: Tag Libraries Users List Subject: Re: JSTL: sql As long as you do the SELECT LAST_INSERT_ID() in the same transaction as the INSERT itself, there's no issue. The value of the most recently generated id is maintained per connection, and using a transaction guarantees that you'll be using the same connection. -- Martin Cooper ----- Original Message ----- From: "Morris Hirsch" <[EMAIL PROTECTED]> To: "Tag Libraries Users List" <[EMAIL PROTECTED]> Sent: Wednesday, May 01, 2002 10:35 AM Subject: Re: JSTL: sql > The problem is not about your own thread doing several related updates, > but some other thread doing an INSERT just after you do, > and before you get a chance to SELECT LAST_INSERT_ID() > > If there is any chance of it (anything except a single user can do it) > you must ensure thread safety with either single-thread attribute, > or synchronize (this) on the block. > > On Wed, 1 May 2002, Paul DuBois wrote: > > > At 12:56 -0400 5/1/02, Carole E. Mah wrote: > > >Does anyone know if the JSTL database tags (<sql>) provide any method for > > >retrieving the unique ID of the row that was inserted last (when you set > > >up you mySQL database table to AUTO_INCREMENT the unique id). > > > > > >This is how I do it using PHP, which provides the mysql_insert_id() > > >function for just this purpose: > > > > > > $query = "INSERT INTO foo (name, phone) VALUES ('Jane Doe','555-1212')"; > > > $LINK = mysql_pconnect ($DB_SERVER, $DB_LOGIN, $DB_PASSWORD); > > > $result = mysql_db_query ("$DB", $query); > > > $my_id = mysql_insert_id($LINK); > > > > > >Thanks! > > > > > >-carole > > > > Don't know of any such thing in JSTL, but you can issue this query > > to get the value from the server: > > > > SELECT LAST_INSERT_ID() > > > > -- > > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > > > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> ********************************************************************** This message, including any attachments, contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, please contact sender immediately by reply e-mail and destroy all copies. You are hereby notified that any disclosure, copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited. TIAA-CREF ********************************************************************** -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
