Start Transaction in InnoDB
Hi, I would like to know, how can I start a new transaction using InnoDB Tables? Alexander mysql, query ___ Yahoo! Encontros O lugar certo para encontrar a sua alma gêmea. http://br.encontros.yahoo.com/ - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Start Transaction in InnoDB
Dobrý den, quarta-feira, 30 de outubro de 2002, 09:40:11, napsal jste: AB Hi, AB I would like to know, how can I start a new transaction using InnoDB Tables? AB Alexander AB mysql, query AB ___ AB Yahoo! Encontros AB O lugar certo para encontrar a sua alma gêmea. AB http://br.encontros.yahoo.com/ AB - AB Before posting, please check: ABhttp://www.mysql.com/manual.php (the manual) ABhttp://lists.mysql.com/ (the list archive) AB To request this thread, e-mail [EMAIL PROTECTED] AB To unsubscribe, e-mail [EMAIL PROTECTED] AB Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php In InnoDB you start a transaction with: BEGIN; INSERT. UPDATE COMMIT; The BEGIN command init a transaction... The COMMIT command... commit the changes The ROLLBACK command... return the changes to init of transaction... A BEGIN AND COMMIT ex: mysql create table teste ( valor int(4) ) Type = InnoDB; Query OK, 0 rows affected (0.04 sec) mysql select * from teste; Empty set (0.00 sec) mysql BEGIN; Query OK, 0 rows affected (0.00 sec) mysql insert into teste values (1),(2); Query OK, 2 rows affected (0.00 sec) Records: 2 Duplicates: 0 Warnings: 0 mysql COMMIT; Query OK, 0 rows affected (0.00 sec) mysql select * from teste; +---+ | valor | +---+ | 1 | | 2 | +---+ 2 rows in set (0.00 sec) A BEGIN AND ROLLBACK EX: mysql select * from teste; Empty set (0.00 sec) mysql BEGIN; Query OK, 0 rows affected (0.00 sec) mysql insert into teste values (1),(2); Query OK, 2 rows affected (0.00 sec) Records: 2 Duplicates: 0 Warnings: 0 mysql select * from teste; +---+ | valor | +---+ | 1 | | 2 | +---+ 2 rows in set (0.00 sec) mysql ROLLBACK; Query OK, 0 rows affected (0.00 sec) mysql select * from teste; Empty set (0.00 sec) OK ? - ++ Dyego Souza do Carmo ++ Dep. Desenvolvimento - E S C R I B A I N F O R M A T I C A - The only stupid question is the unasked one (somewhere in Linux's HowTo) Linux registred user : #230601 -- $ look into my eyes look: cannot open my eyes - Reply: [EMAIL PROTECTED] - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
re: Start Transaction in InnoDB
Alexander, Wednesday, October 30, 2002, 1:40:11 PM, you wrote: AB I would like to know, how can I start a new transaction using InnoDB Tables? Use BEGIN statement: http://www.mysql.com/doc/en/COMMIT.html Don't forget to SET AUTOCOMMIT=0; -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Egor Egorov / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net ___/ www.mysql.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re[2]: Start Transaction in InnoDB
Dobrý den, quarta-feira, 30 de outubro de 2002, 13:09:01, napsal jste: EE Alexander, EE Wednesday, October 30, 2002, 1:40:11 PM, you wrote: AB I would like to know, how can I start a new transaction using InnoDB Tables? EE Use BEGIN statement: EE http://www.mysql.com/doc/en/COMMIT.html EE Don't forget to SET AUTOCOMMIT=0; What is the diference of SET AUTOCOMMIT=0; and set BEGIN; ? If I start the transaction with BEGIN and without SET AUTOCOMMIT=0 what will happen ? what is the diference ? - ++ Dyego Souza do Carmo ++ Dep. Desenvolvimento - E S C R I B A I N F O R M A T I C A - The only stupid question is the unasked one (somewhere in Linux's HowTo) Linux registred user : #230601 -- $ look into my eyes look: cannot open my eyes - Reply: [EMAIL PROTECTED] - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Re[2]: Start Transaction in InnoDB
Dyego, BEGIN, not set begin. My understanding is that BEGIN is a synonym for SET autocommit=0. PB - AB I would like to know, how can I start a new transaction using InnoDB Tables? EE Use BEGIN statement: EE http://www.mysql.com/doc/en/COMMIT.html EE Don't forget to SET AUTOCOMMIT=0; What is the diference of SET AUTOCOMMIT=0; and set BEGIN; ? If I start the transaction with BEGIN and without SET AUTOCOMMIT=0 what will happen ? what is the diference ? - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: Re[2]: Start Transaction in InnoDB
This is what I think. When Autocommit is set you DO NOT have to enter COMMIT after you update your DB (Update, Insert Delete), but you will be changing the DB after every statement, therefore you cannot change your mind after the command is execute. Now as for BEGIN, it will begin a Transaction regardless of the Autocommit value. Therefore if you have Autocommit set, but you do: BEGIN; SQLCOMMANDS; COMMIT OR ROLLBACK; The changes will be save only at the COMMIT or if you do not want the changes to take effect you can ROLLBACK. When Autocommit is not set you MUST COMMIT after your SQL statement in order for the changes to be written into the DB regardless as to you start or not with BEGIN. HTH JFernando *** sql *** -Original Message- From: Peter Brawley [mailto:peter.brawley;artfulsoftware.com] Sent: October 30, 2002 12:38 To: Dyego Souza do Carmo; Egor Egorov Cc: [EMAIL PROTECTED] Subject: Re: Re[2]: Start Transaction in InnoDB Dyego, BEGIN, not set begin. My understanding is that BEGIN is a synonym for SET autocommit=0. PB - AB I would like to know, how can I start a new transaction using InnoDB Tables? EE Use BEGIN statement: EE http://www.mysql.com/doc/en/COMMIT.html EE Don't forget to SET AUTOCOMMIT=0; What is the diference of SET AUTOCOMMIT=0; and set BEGIN; ? If I start the transaction with BEGIN and without SET AUTOCOMMIT=0 what will happen ? what is the diference ? - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
