autocommit

From: http://www.gosoa.com.cn/php-mysql%E4%BA%8B%E5%8A%A1%E8%AF%A6%E8%A7%A3 Before talking about PhP MySQL transactions, You can first understand the differences between PHP MySQL and mysqli. First, both functions are used to process

A transaction is a mechanism that ensures that multiple SQL statements are treated as a single unit of work. Transactions have the following effects: Consistency: Simultaneous queries and updates do not conflict with each other, and other users do

PHPmysql and mysqli transaction instructions are shared. Mysqli encapsulates some advanced operations, such as transactions, and many available methods in the database operation process. A lot of applications are mysqli transactions. For example,

First, mysqli connections are permanent connections, while mysql does not. What does it mean? Mysql will re-open a new process whenever it is used for the second time, while mysql uses only the same process, in this way, the pressure on the server

Mysql transaction bitsCN.com Because transactions are used for work, I searched some excellent posts for the transactions and sorted them out as follows: First, whether mysql supports transactions is determined by the storage engine. The InnoDB

mysql_query ("Begin");//Start a transaction mysql_query ("SET autocommit=0"); Set transaction not automatic commit $insert = "INSERT INTO UserInfo VALUES (' aa12 ', ' AA ', ' 1 ', ' aaa ')"; mysql_query ($insert); mysql_query

First, mysqli connections are permanent connections, while mysql does not. What does it mean? Mysql will re-open a new process whenever it is used for the second time, while mysql uses only the same process, First, mysqli connections are permanent

Mysqli encapsulates some advanced operations, such as transactions, while encapsulating many of the methods available during DB operations. The most widely used place is the mysqli business. Like the following example: Copy Code code as

PHP and MySQL transaction processingIn general, transactions should have acid characteristics. The so-called acid is Atomic (atomicity), consistent (consistency), Isolated (isolation), durable (persistent) four words written in the first letter, the

PHP and MySQL transaction processing php and MySQL transactions/*There are two main ways to handle MySQL transactions. 1, the implementation begins with Begin,rollback,commit a transaction ROLLBACK TRANSACTION rollback COMMIT TRANSACTION

1 Environmental DescriptionThe first article of the environment "MYCAT Study notes". MYSQL read-write separation and log analysis--master-slave single node http://www.cnblogs.com/kaye0110/p/5134588.htmlAdded a set of MySQL instances, Port 3308,

Source: The transaction support reproduced in MySQL is not tied to the MySQL server itself, but is related to the storage engine 1. MyISAM: Transaction not supported, for read-only program lift high performance 2.InnoDB: Acid transaction, row level

Note the first wave of high-performance mysql A transaction is an atomic SQL query, or an independent unit of work.. If the database engine can successfully execute all the statements in the group, it will execute these statements. If any of the

Mycat discrete parts-) Enumeration parts1. Enumeration parts Enumeration sharding: You can configure the shard by configuring the possible enumeration id in the configuration file. This rule applies to specific scenarios. For example, some

MysqlInnoDB row lock implementation method bitsCN.com Mysql InnoDB row lock implementation method InnoDB row lock is implemented by locking the index items on the index. this is different from Oracle in MySQL, the latter is implemented by locking

In practice, it is best to use org. springframework. transaction. Support. transactiontemplate for operations on programming transactions, because hibernatetemplate is not as expected in actual operations, as shown below:     Objective: To use

Mycat continuous sharding-) custom number range sharding1. Custom number range Partition You can customize the number range sharding and plan in advance which part of a range belongs to the sharding field. For example, you can partition the first

Today and students to discuss the issue of database transactions, feel the discussion in some understanding, some knowledge has been seen, but no actual use or do not understand. A transaction is a sequence of operations as an atomic operation, or

Today let Yun-dimensional test library data to the export of a local to their own computer to do the test, large amount of data (millions of bar), the system to see the order list data is very slow (it is estimated that your computer configuration

There are two main ways to handle MySQL transactions.1, with Begin,rollback,commit to achieveBegin a transactionROLLBACK TRANSACTION RollbackCommit TRANSACTION Acknowledgement2, directly with set to change the MySQL automatic submission modeMySQL is