VAT fraud, in which tax is charged as part of a transaction but not surrendered to any government, has long been a problem in the market.
增值税欺诈一直是该市场的一个问题，它是指税赋已经作为交易的一部分征收，但并未向任何政府上缴。
So what is a transaction, anyway?
那么到底什么是事务呢？
This function wraps a transaction.
此函数包装一个事务。
这就叫事务（transaction）。
Submit a transaction involving DB2.
提交一个包含了DB2的事务。
We now need a transaction definition.
现在我们需要事务定义。
什么是事务？
Run a transaction that does involve DB2.
运行一个包含了DB2的事务。
If a transaction is provided, it's used.
如果提供了事务，则使用该事务。
The scope starts when a transaction begins.
这个范围开始于一个事务的开始。
If a transaction is provided, it's ignored.
如果提供了事务，则忽略该事务。
However, Castor is not a transaction manager.
然而，Castor不是事务管理器。
Will a transaction involve one DAO or multiple DAOs?
事务涉及到一个DAO还是多个DAO ？
You definitely want to do this outside of a transaction.
你应该明确地在事务之外做这项工作。
Add a transaction definition entry for each transaction.
为每个事务添加事务定义项。
Which object will be responsible for ending a transaction?
哪一个对象将负责结束一个事务？
The "perform a transaction" use case modifies the balance.
“完成交易”用例修改余额。
Our usage: We open a transaction and read a big result set.
我们的用法：我们打开事务并读取大结果集。
Submit a transaction involving the failed resource manager.
提交一个包含了出错的资源管理器的事务。
Which object will be responsible for starting a transaction?
哪一个对象将负责开始一个事务？
The stub determines if the caller is executing a transaction.
存根确定调用者是不是正在执行一个事务。
Submit a transaction when the resource manager is unavailable.
资源管理器不可用时，提交一个事务。
Why would you need a transaction if you are only reading data?
如果只是读取数据，需要事务吗？
Mediation flows are committed as a transaction, or rolled back.
中介流是作为事务提交或回滚的。
When a transaction ends, the corresponding scope key is removed.
当事务结束时，删除对应的范围键。
There isn't even any code to define a transaction or make it XA.
甚至没有任何代码用于定义事务或者将事务变为 XA。
Listing 2 shows how to start, execute, and commit a transaction.
清单2将显示如何启动、执行和提交事务。
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