Re: Undo function?
Hi, I want to add one more thing. Usually manually entered queries must end up with semicolon so if you hit enter before the end nothing happens. Regards, Dusan - Original Message - From: shaun thornburgh [EMAIL PROTECTED] To: mysql@lists.mysql.com Sent: Thursday, January 20, 2005 2:17 PM Subject: Undo function? Hi, I get very nervous when I log onto my database via SSH and type in queries manually. Take the following query for example: Delete FROM Users WHERE User_ID = 5; If I hit return before I start typing WHERE then things would be disastorous! Is there any type of undo function with MySQL? Thanks for your help. -- 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]
Re: Undo function?
Hello, I get very nervous when I log onto my database via SSH and type in queries manually. Take the following query for example: Delete FROM Users WHERE User_ID = 5; If I hit return before I start typing WHERE then things would be disastorous! Is there any type of undo function with MySQL? Use innodb tables and set autocommit to OFF. With regards, Martijn Tonies Database Workbench - developer tool for InterBase, Firebird, MySQL MS SQL Server Upscene Productions http://www.upscene.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Undo function?
[snip] I get very nervous when I log onto my database via SSH and type in queries manually. Take the following query for example: Delete FROM Users WHERE User_ID = 5; If I hit return before I start typing WHERE then things would be disastorous! Is there any type of undo function with MySQL? [/snip] You'll want to read this http://dev.mysql.com/doc/mysql/en/COMMIT.html -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Undo function?
On Thu, Jan 20, 2005 at 08:58:18AM -0600, Jay Blanchard wrote: [snip] I get very nervous when I log onto my database via SSH and type in queries manually. Take the following query for example: Delete FROM Users WHERE User_ID = 5; If I hit return before I start typing WHERE then things would be disastorous! Is there any type of undo function with MySQL? [/snip] You'll want to read this http://dev.mysql.com/doc/mysql/en/COMMIT.html And try: $ mysql --i-am-a-dummy that makes it refuse deletes without 'where' Good luck, Harmen -- The Moon is Waxing Gibbous (81% of Full) -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Undo function?
Hello, If you define table type as InnoDB, you can use transactions (see the link below). You will need set AUTOCOMMIT=0, and after you can issue COMMIT or ROLLBACK at the end of query or session to submit or cancel a transaction. I don't think you can use transactions for mysql system tables because they have to be MyISAM type, so the best solution for them will be backups. http://dev.mysql.com/doc/mysql/en/InnoDB_transaction_model.html -Original Message- From: shaun thornburgh [mailto:[EMAIL PROTECTED] Sent: Thursday, January 20, 2005 8:17 AM To: mysql@lists.mysql.com Subject: Undo function? Hi, I get very nervous when I log onto my database via SSH and type in queries manually. Take the following query for example: Delete FROM Users WHERE User_ID = 5; If I hit return before I start typing WHERE then things would be disastorous! Is there any type of undo function with MySQL? Thanks for your help. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] Attention: Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity. The information contained in this message and or attachments is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you received this in error, please contact the sender and delete the material from any system and destroy any copies. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Undo function?
Backups are good too :-) Andy -Original Message- From: Artem Koltsov [mailto:[EMAIL PROTECTED] Sent: 20 January 2005 15:06 To: mysql@lists.mysql.com Subject: RE: Undo function? Hello, If you define table type as InnoDB, you can use transactions (see the link below). You will need set AUTOCOMMIT=0, and after you can issue COMMIT or ROLLBACK at the end of query or session to submit or cancel a transaction. I don't think you can use transactions for mysql system tables because they have to be MyISAM type, so the best solution for them will be backups. http://dev.mysql.com/doc/mysql/en/InnoDB_transaction_model.html -Original Message- From: shaun thornburgh [mailto:[EMAIL PROTECTED] Sent: Thursday, January 20, 2005 8:17 AM To: mysql@lists.mysql.com Subject: Undo function? Hi, I get very nervous when I log onto my database via SSH and type in queries manually. Take the following query for example: Delete FROM Users WHERE User_ID = 5; If I hit return before I start typing WHERE then things would be disastorous! Is there any type of undo function with MySQL? Thanks for your help. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] Attention: Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity. The information contained in this message and or attachments is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you received this in error, please contact the sender and delete the material from any system and destroy any copies. -- 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]
Re: Undo function?
Also a good practice for shakey hands is to start mysql with the --safe-updates option. This will not allow a delete or update to be executed without a where clause. On Thu, 20 Jan 2005 10:55 am, Andy Eastham wrote: Backups are good too :-) Andy -Original Message- From: Artem Koltsov [mailto:[EMAIL PROTECTED] Sent: 20 January 2005 15:06 To: mysql@lists.mysql.com Subject: RE: Undo function? Hello, If you define table type as InnoDB, you can use transactions (see the link below). You will need set AUTOCOMMIT=0, and after you can issue COMMIT or ROLLBACK at the end of query or session to submit or cancel a transaction. I don't think you can use transactions for mysql system tables because they have to be MyISAM type, so the best solution for them will be backups. http://dev.mysql.com/doc/mysql/en/InnoDB_transaction_model.html -Original Message- From: shaun thornburgh [mailto:[EMAIL PROTECTED] Sent: Thursday, January 20, 2005 8:17 AM To: mysql@lists.mysql.com Subject: Undo function? Hi, I get very nervous when I log onto my database via SSH and type in queries manually. Take the following query for example: Delete FROM Users WHERE User_ID = 5; If I hit return before I start typing WHERE then things would be disastorous! Is there any type of undo function with MySQL? Thanks for your help. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] Attention: Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity. The information contained in this message and or attachments is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you received this in error, please contact the sender and delete the material from any system and destroy any copies. -- 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] John Pignata [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
