start transaction

Start transaction, commit, and rollback syntaxStart transaction | begin [work] commit [work] [and [no] chain] [[no] release] rollback [work] [and [no] chain] [[no] release] set autocommit = {0 | 1} start transaction or begin statement can start a

Start transaction, commit and rollback syntaxStart Transaction | Begin [Work]commit [Work] [and [No] chain] [[No] release]rollback [work] [and [No] chain] [[No] release]set autocommit = { 0 | The 1}start transaction or BEGIN statement can begin a

START TRANSACTION [with consistent snapshot]begin [work]commit [Work] [and [No] CHAIN] [[No] release]rollback [work] [and [NO] CHAIN] [[NO] Release]set autocommit = {0 | 1}These statements provide control over use of transactions: START

Start transaction,COMMIT, AndROLLBACKSyntax From: http://dev.mysql.com/doc/refman/5.0/en/commit.html Of course, the article noted from MySQL, but MySQL, SQL Server, Oracle start tracmsaction, commit, and rollback syntax are no problem in DML. I hope

Set autocommit=0 refers to a transaction that is not automatically committed, since the execution of this sentence, each SQL statement or statement block the transaction needs to display "commit" to commit the transaction.1, whether autocommit is 1

Server Version:5.6.21-log MySQL Community Server (GPL)Prerequisite Summary:We know that under MySQL's RR (repeatable Read) isolation level, transactions cannot see the actions that are being made by the active firm, including post-commit.The General

Difference between set autocommit = 0 and start transaction in mysql, setautocommit0   By default, MySQL runs with autocommit mode enabled. This means that as soon as you execute a statement that updates (modifies) a table, MySQL stores the update

When JDBC uses MySQL to process big data, it's natural to think of using batch processing,The normal execution process is: every data processing, access to a database;Batch processing is: accumulate to a certain amount, and then commit to the

Question: Why is transaction introduced? 1>.Data Integrity 2>.Data security 3>.Make full use of system resources to improve the system's concurrent processing capability 1.Transaction Features Transactions have four features: Atomiocity, Consistency,

Question: Why is transaction introduced? 1>.Data Integrity 2>.Data security 3>.Make full use of system resources to improve the system's concurrent processing capability 1.Transaction Features Transactions have four features: Atomiocity, Consistency,

Introduction: Why the introduction of transactions? 1>. Data Integrity 2>. Data Security 3>. Make full use of system resources to improve the ability of system concurrent processing 1. characteristics of the transaction Transactions have four

MySQLInnoDB transaction and lock details bitsCN.com Question: Why is transaction introduced? 1>.Data integrity 2>.Data security 3>.Make full use of system resources to improve the system's concurrent processing capability 1.Transaction

1 Overview InnoDB automatically detects deadlocks. If a deadlock occurs, InnoDB rolls back the transaction with a relatively small weight. In fact, there are two types of deadlocks in InnoDB: Real inter-transaction cyclic wait. During

We can understand the rationale behind mysqldump by opening the general log and looking at the commands executed during mysqldump full library backup.Open General Logmysql> set global general_log=on;Where the general log's storage path can be viewed

In-depth analysis of Java Web Item31 -- JDBC (MySQL) Transaction ManagementI. Concepts of transactions 　　A transaction refers to a logical group of operations that constitute each unit of this group of operations. If the transaction is successful,

This article provides an excellent mechanism to define, encapsulate, and manage transactions. For more information, see This article provides an excellent mechanism to define, encapsulate, and manage transactions. For more information, see ACID:

MySQL Four transaction isolation level detailed and comparison According to the sql:1992 transaction isolation level, InnoDB is repeatable by default (Repeatable Read). MYSQL/INNODB provides all four transaction isolation levels described by the

Transferred from: http://www.cnblogs.com/zhoujinyi/p/3437475.htmlThe articles that were written earlier, reviewed and studied, can also be seen in this article.By sql:1992 transaction ISOLATION level, InnoDB is repeatable read (repeatable read) by

Implementation principle of mysqldump and implementation principle of mysqldump MySQL backup can be divided into the following two types: 1. Cold backup 2. Hot Standby Among them, cold backup, as its name implies, is to turn off the database and use

Http://www.cnblogs.com/digdeep/p/4947694.htmlConsistent reads, also known as snapshot reads. The MVCC mechanism is used to read the data that has been committed in undo. So its read is non-blocking.Related documents: http://dev.mysql.com/doc/refman/5