Mysql Automatic Rollback On Error
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more begin commit rollback transaction in mysql about Stack Overflow the company Business Learn more about hiring developers or posting mysql rollback transaction on error ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack mysql stored procedure transaction rollback example Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Automatic Rollback if COMMIT TRANSACTION is not reached up vote 8 mysql transaction rollback not working down vote favorite 2 Consider the following: START TRANSACTION; BEGIN; INSERT INTO prp_property1 (module_name,environment_name,NAME,VALUE) VALUES ('','production','','300000'); /** Assume there is syntax error SQL here...**/ Blah blah blah DELETE FROM prp_property1 WHERE environment_name = 'production'; COMMIT TRANSACTION; Question: I noticed that the transaction automatically rolls back and the record insert attempt fails. If I don't provide a error handler or error check along with ROLLBACK TRANSACTION as above, is it
Mysql Implicit Rollback
safe as it seems to be doing the job in an example like above because the COMMIT TRANSACTION never gets executed? I assume the transaction is rolled back immediately and discarded as soon as a error occurs. mysql transactions rollback share|improve this question asked May 25 '11 at 9:00 Koekiebox 2,76153772 I am using SQLyog as a client. –Koekiebox May 25 '11 at 9:22 See here stackoverflow.com/questions/6121917/… –Rogerio de Moraes Oct 13 '15 at 12:40 add a comment| 4 Answers 4 active oldest votes up vote 15 down vote accepted No, transactions are not rolled back as soon as an error occurs. But you may be using a client-application which applies this policy. For example, if you are using the mysql command-line client, then it normally stops executing when an error occurs and will quit. Quitting while a transaction is in progress does cause it to be rolled back. When you are writing your own application, you can control the policy on rollback, but there are some exceptions: Quitting (i.e. disconnecting from the database) always rolls back a transaction in progress A deadlock or lock-wait timeout implicitly causes a rollback Other than these conditions, if you invoke a command which gen
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Mysql Transaction Error
Us Learn more about Stack Overflow the company Business Learn more about hiring error handling in mysql developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join autocommit mysql the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up mysql transaction - roll back http://stackoverflow.com/questions/6121917/automatic-rollback-if-commit-transaction-is-not-reached on any exception up vote 11 down vote favorite 10 Is it possible to roll back automatically if any error occurs on a list of mysql commands? for example something along the lines of: begin transaction; insert into myTable values1 ... insert into myTable values2 ...; -- will throw an error commit; now, on execute i want the whole transaction to fail, and therefore i should http://stackoverflow.com/questions/19905900/mysql-transaction-roll-back-on-any-exception NOT see values1 in myTable. but unfortunately the table is being pupulated with values1 even though the transaction has errors. any ideas how i make it to roll back? (again, on any error)? EDIT - changed from DDL to standard SQL mysql transactions rollback share|improve this question edited Nov 11 '13 at 12:53 asked Nov 11 '13 at 12:03 Urbanleg 1,42242871 This is pointless since transactions in MySQL do not support DDL –Alma Do Nov 11 '13 at 12:06 thanks for the comment, i edited my original post –Urbanleg Nov 11 '13 at 12:53 Have you considered using Handlers? 13.6.7.2. DECLARE ... HANDLER Syntax –wchiquito Nov 11 '13 at 13:07 add a comment| 2 Answers 2 active oldest votes up vote 23 down vote accepted You can use 13.6.7.2. DECLARE ... HANDLER Syntax in the following way: DELIMITER $$ CREATE PROCEDURE `sp_fail`() BEGIN DECLARE `_rollback` BOOL DEFAULT 0; DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET `_rollback` = 1; START TRANSACTION; INSERT INTO `tablea` (`date`) VALUES (NOW()); INSERT INTO `tableb` (`date`) VALUES (NOW()); INSERT INTO `tablec` (`date`) VALUES (NOW()); -- FAIL IF `_rollback` THEN ROLLBACK; ELSE COMMIT; END IF; END$$
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