transaction

Original link: https://hyperledger-fabric.readthedocs.io/en/latest/txflow.html "This article doesn't have to be literal. 】 Transaction Flow Trading Process This document outlines the transactional mechanics, the place during a, standard asset

This article illustrates four concepts related to databases: transactions, database reads, isolation levels, lock mechanismsFirst, the businessFirst look at the Baidu Encyclopedia of the definition of database transactions:Perform a series of

This text connection: http://blog.csdn.net/bluishglc/article/details/7612811, reprint please indicate the source!1.XAXA is a specification of distributed transactions presented by the X/open organization. The XA specification primarily defines the

A transaction executes a sequence of operations as a unit, either succeeds or fails, and rolls back to its original state. In transactional terminology, a transaction is either committed or aborted. To commit a transaction, all participants must

There are four database isolation levels, as described in the "high-performance MySQL" Book:Then talk about how to modify the transaction isolation level:1. Global modification, modify the Mysql.ini configuration file, at last add1 #可选参数有:

Spring's transactional propagation behavior type Propagation_required If there is no current transaction, create a new transaction, if one is already present, join the transaction. This is the most common choice.

From: http://www.xdocs.org /? Author = 1 In this article, I will show you how to use spring to handle transaction management.Advantages of Spring transaction management It is very easy to use and does not require any knowledge of the underlying

Redis Services (transaction) This document is translated from: Http://redis.io/topics/transactions. MULTI, EXEC, discard and WATCH are the basis of the Redis transaction. A transaction can execute more than one command at a time with the following

A transaction is the execution unit of a DBMS. It is made up of a limited number of database operation sequences. But not any database operation sequence can be a transaction. In general, transactions are required to meet 4 conditions

Connection: EJB transaction control (CMT and BMT methods and JTA transactions) Previous Code: @ transactionattribute (transactionattributetype. Required) // sets the propagation feature of a transaction to required. In the previous article, why is

Spring transaction Propagation and Its Implementation Principles, springpropagation This article focuses on spring transaction Propagation and Its Implementation Principles. The specific introduction is as follows.Introduction Spring is now a de

Description of the transaction (Transaction):A transaction (Transaction) is the basic unit of concurrency control. The so-called transaction, which is a sequence of operations that are either executed or not executed, is an inseparable unit of work.

1.autoCommit (), commit (), rollback ()function autocommit ($onoff =false)Specifies whether the transaction is committed automatically. Some back-end databases are not supported.function commit ()Commit the current transactionfunction rollback

The System. Transactions namespace has been added since. NET2.0, bringing a new transaction Programming Model for. NET applications. This namespace provides several dependent TransactionXXX classes. Transaction is the base class of all Transaction

This article describes the 5 properties of spring transactionsIn spring, declaring a transaction is defined by a transaction property. Transaction properties describe how a transaction policy is applied to a method on a transaction property that

Business Introduction:Transaction management is an essential technology in enterprise-level application development to ensure data integrity and consistencyA transaction is a series of actions that are treated as a separate unit of work. These

first, what is a transaction. A transaction is a logical unit of business that ensures that all operations on the data are successful or fail. second, what are the characteristics of the transaction? 1. Atomic sex. For example, transfer, a reduced

0. PrefaceFor the processing of locking, it can be said that the database is the essence of transaction processing. This paper simply analyzes the locking mechanism of InnoDB engine in MySQL.1. One block or two lock?Because there is a lot of

1. What is a Java transactionIt is generally assumed that transactions are related to databases. a transaction is a sequence of operations that accesses a database, and the database application system accesses the database through a transaction set.

The interview will encounter such a problem, while writing and reading one piece of data, how to ensure the accuracy of the data? Here is the question of business.Common factors in image databasesIn order to save time, I mostly learn from other