Many thanks -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, June 01, 2006 8:00 PM To: mysql@lists.mysql.com Subject: Re: How to get machine independent unique id??
Isn't UUID() unique for each system it runs on?? -- Chris Quoting Dan Buettner <[EMAIL PROTECTED]>: > Neeraj - > > One idea might be to use both a client ID field and a record ID field to > uniquely identify records. This approach has benefits (easy to add > clients, doesn't require as much client setup or planning) and a > potentially big drawback (no one unique record identifier). > > Another would be to borrow a technique used in multi-master replication, > even if you're not using replication, to have your client databases > assign unique IDs. Benefit is unique identifier, drawback is you need > to plan ahead a bit more and do some setup on each client. See the > article at: > http://dev.mysql.com/tech-resources/articles/advanced-mysql-replication.html > and pay particular attention to the use of auto_increment_increment and > auto_increment_offset variables. > > Hope this helps, > Dan > > > > > Neeraj wrote: > > Hi all.. > > > > > > > > > > > > > > > > I have a scenario of many client databases and one central database.. > > > > > > > > > > > > > > > > Is there any way to get a unique ids across all databases (by any way) , > > because records from all the databases are finally get stored on a central > > database. And the ids of transaction (a record) must remain unique in > > central database. > > > > > > > > > > > > > > > > These transaction ids are getting generated on client database.. > > > > > > > > > > > > > > > > Thanks in advance.. > > > > > > > > > > > > > > > > Cheers.....:-) > > > > > > > > > > > > > > > > Neeraj Black Bits > > > > > > > > > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] > > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
