Re: [PHP] Database Duplication
Maybe I should explain myself a little better. Sorry for leaving out what turned out to be crucial details. What is happening is I want to make a test user so that, whenever I log in with that user, I can muck up the database and not worry about what others will see or permanent changes. In the past, whenever I tested the site, I had to quickly reset any changes I'd done to the database, which sometimes involved an hour or more of work for hidden bugs that I ended up overlooking. The test user (whom only I know of) is needed to test the Web site (make sure things are being deleted as needed, etc.). What I envisioned is that, when I log in as 'testuser', the database will be duplicated and I'll use that. While I'm testing my site, mucking things up, screwing up the data, I don't have to worry about other users coming along and seeing these changes, because they'll be seeing the original, , unscrewed data (which is why I need to use a muckable, duplicate database), making changes, etc. This way, that hour of work I mentioned would be eliminated. When I log out, the database is useless because it's only really test data (with enough real-life data already populated in the database), and so it doesn't matter what changes users have done in the meantime. What I may do is just duplicate the database and have a permanent, screwable database to play with, because that seems like less of a load on the system. I just wanted to have up-to-date data in my screwable database. The above method looks like a lot of processor time, etc., so just making a permanent test data database may be the best option, so it doesn't have to keep recopying. I just thought I'd throw out the question and see if it was smaller than I thought it would be. __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Database Duplication
On Tuesday 30 April 2002 21:57, Liam Gibbs wrote: Maybe I should explain myself a little better. Sorry for leaving out what turned out to be crucial details. I think someone asked in response to your original post what db are you using?. You still haven't told us! -- Jason Wong - Gremlins Associates - www.gremlins.com.hk Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * /* The kind of danger people most enjoy is the kind they can watch from a safe place. */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Database Duplication
I'm going to guess you are using mysql. Before starting a test, dump your database with the mysqldump command. Edit this file to create/use your test database. Load your test database with this file. This is too obvious and too easy...therefore, I assume you already did this and it did not provide what you needed. What additional functionality are you seeking? - Original Message - From: Liam Gibbs [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, April 30, 2002 8:57 AM Subject: Re: [PHP] Database Duplication Maybe I should explain myself a little better. Sorry for leaving out what turned out to be crucial details. What is happening is I want to make a test user so that, whenever I log in with that user, I can muck up the database and not worry about what others will see or permanent changes. In the past, whenever I tested the site, I had to quickly reset any changes I'd done to the database, which sometimes involved an hour or more of work for hidden bugs that I ended up overlooking. The test user (whom only I know of) is needed to test the Web site (make sure things are being deleted as needed, etc.). What I envisioned is that, when I log in as 'testuser', the database will be duplicated and I'll use that. While I'm testing my site, mucking things up, screwing up the data, I don't have to worry about other users coming along and seeing these changes, because they'll be seeing the original, , unscrewed data (which is why I need to use a muckable, duplicate database), making changes, etc. This way, that hour of work I mentioned would be eliminated. When I log out, the database is useless because it's only really test data (with enough real-life data already populated in the database), and so it doesn't matter what changes users have done in the meantime. What I may do is just duplicate the database and have a permanent, screwable database to play with, because that seems like less of a load on the system. I just wanted to have up-to-date data in my screwable database. The above method looks like a lot of processor time, etc., so just making a permanent test data database may be the best option, so it doesn't have to keep recopying. I just thought I'd throw out the question and see if it was smaller than I thought it would be. __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Database Duplication
I'm going to guess you are using mysql. Dagwood. I always leave details out. Doesn't matter what it is. Yes, it's MySQL, and I'm forwarding this to the list because you're not the only one that caught my oversight. Sorry about that again. Before starting a test, dump your database with the mysqldump command. Edit this file to create/use your test database. Load your test database with this file. Hmm. No I didn't do this. Not too familiar with all the intricacies of MySQL (or SQL). I'll take a look at dumping the database. This is too obvious and too easy...therefore, I assume you already did this and it did not provide what you needed. What additional functionality are you seeking? I'm just seeking a database duplication that I can throw away after I'm done. __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Database Duplication
On Tue, 30 Apr 2002, Liam Gibbs wrote: Before starting a test, dump your database with the mysqldump command. Edit this file to create/use your test database. Load your test database with this file. Hmm. No I didn't do this. Not too familiar with all the intricacies of MySQL (or SQL). I'll take a look at dumping the database. Something like: mysqladmin -u root create temp_db mysql -u root -e 'grant all access on temp_db to real_user' mysqldump -u real_user real_db | mysql -u real_user temp_db and then when you're done: mysqladmin -u root drop temp_db obviously adding -p to those lines as appropriate. But it's not going to be that fast with large databases, and you'll have to work out some scheme for dealing with multiple users each needing their own copy. We don't know nearly enough about your project to really work out alternatives for you, but I bet there's a good one somewhere. Temp tables, shadow tables in the same database, something. miguel -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Database Duplication
I'm not sure if this is possible in PHP (maybe it's even an SQL problem, I dunno), but is there a command that will duplicate a database? I need to make a 'mirror' of it that I can dispose of after my user logs out that won't change the source database at all. __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Database Duplication
On Mon, 29 Apr 2002, Liam Gibbs wrote: I'm not sure if this is possible in PHP (maybe it's even an SQL problem, I dunno), but is there a command that will duplicate a database? I need to make a 'mirror' of it that I can dispose of after my user logs out that won't change the source database at all. Normally you'd use the database's rollback mechanism for this. miguel -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Database Duplication
Every time a user logs in, you want to duplicate the database Must be a very small database...not one with several hundred-thousand records. It's a SQL question. You didn't specify what database you are using, so nobody can provide you with specifics. - Original Message - From: Liam Gibbs [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, April 29, 2002 3:21 PM Subject: [PHP] Database Duplication I'm not sure if this is possible in PHP (maybe it's even an SQL problem, I dunno), but is there a command that will duplicate a database? I need to make a 'mirror' of it that I can dispose of after my user logs out that won't change the source database at all. __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
