Re: why: mysqldump and mysqlimport?
On Tue, 13 Jan 2004, EP wrote: I am wondering: I can see the MySQL data files for my various databases. What technically prevents me from simply copying those files and using copies - to move my database to another file structure or server - to back-up my current db Copying will not work across certain versions, will also not work between system archtechtures, port to other RDBMS or if you do not have physical access to the files. For the cases above mysqldump works fine. cheers, Tobias -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: why: mysqldump and mysqlimport?
EP wrote: I am wondering: I can see the MySQL data files for my various databases. What technically prevents me from simply copying those files and using copies - to move my database to another file structure or server - to back-up my current db Yes, I did put my finger in the electrical socket as a kid. But only several times. A simple file copy works if: a) No-one is accessing the database at the time, and b) There is no database corruption If you have database corruption, mysqldump will often be the first to know about it, as you're selecting all rows ( as opposed to other mysql clients which are selecting specific rows ). So using mysqldump and watching the output ( make a cron job and it'll email you the output ), you can catch database corruption early and have a good chance to do something about it, instead of simply copying corrupt files day after day until you finally don't have a valid backup around. Dan -- Daniel Kasak IT Developer NUS Consulting Group Level 5, 77 Pacific Highway North Sydney, NSW, Australia 2060 T: (+61) 2 9922-7676 / F: (+61) 2 9922 7989 email: [EMAIL PROTECTED] website: http://www.nusconsulting.com.au -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
why: mysqldump and mysqlimport?
I am wondering: I can see the MySQL data files for my various databases. What technically prevents me from simply copying those files and using copies - to move my database to another file structure or server - to back-up my current db Yes, I did put my finger in the electrical socket as a kid. But only several times. TIA Eric -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: why: mysqldump and mysqlimport?
In the last episode (Jan 13), EP said: I am wondering: I can see the MySQL data files for my various databases. What technically prevents me from simply copying those files and using copies - to move my database to another file structure or server - to back-up my current db Absolutely nothing. As long as you ensure there are no active writes while you make the copy, this is the fastest way to back up a database. The mysqlhotcopy script automates the process. -- Dan Nelson [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
