您将使用 PUT操作执行更新。
这里需要返回数据，并执行更新。
Data needs to be returned and an update needs to be performed.
在执行更新的情况下，返回受影响的行。
In the case of an update, the number of rows effected is returned.
频繁地执行更新、重建基础，及交付操作。
备用磁盘准备好后，就可以执行更新过程了。
After the alternate disk is done, the update process can be performed.
如果值有效，则执行更新查询。
大多数情况下，执行更新的数据源不应该被缓存。
In most cases, feeds that perform updates should not be cached.
然后使用这些原始值执行更新或删除操作。
The update or delete operation is then performed using these original values.
用存储库执行更新，从而集成其他开发人员所做的修改。
Perform an update with the repository to integrate changes from other developers.
对所有数据执行更新(按百分比增加每位员工的工资)。
Perform an update on all of the data (increase each salary by a percentage).
使用附加的服务器程序，它会在文档修改时立即执行更新
Using an add-on server program that transparently performs the update immediately when documents are modified
用户手册有一部分就是介绍如何执行更新操作的。
会抛出一个异常，表示您正在试图对一个只读连接执行更新。
The correct answer here is A. An exception will be thrown, indicating that you are trying to perform an update operation on a read-only connection.
如果变更了本地文件而又想同步变更存储库，就需要执行更新。
If you make changes to your local files and you want to sync up with changes at the repository, you perform an update.
何时执行更新，进度输入是过程控制，不是软件控制。
When to perform update, progress input is control by process, not software.
然后我们创建这个查询(换言之，where子句)并执行更新。
You then create the query (in other words, the where clause) and execute the update.
Collection中的对象集只有在执行更新时才会被索引。
The object sets included in the collection are not indexed until an update is performed.
Manager 1试图对同一数据页中的另一行执行更新，结果如下。
Result from Manager1 trying to update another row on the same data page.
根据您的风格选择适当的方法，从而把您忘记执行更新时的风险降到最低。
Choose the approach that fits your style and offers the least risk when you forget to make an update.
有许多这种客户机使用对应用程序很有意义的特定方法执行更新、删除和查询。
There are many such clients performing the updates, deletes, and queries in a specific way that is meaningful to the application.
您无需设计额外的对话框来询问用户在程序运行时是否需要执行更新检测。
You do not have to design additional dialogs that ask the user if update checks should be performed while your application is running.
此处，我假定processtrade方法调用的其他方法不执行更新操作。
(I am assuming here that the other methods invoked by the processTrade method do not perform update operations.)
常常希望只准备和编译UPDATE语句一次，然后在每次执行更新时传递一个新值。
Often you will want to prepare and compile the UPDATE statement only once, and then pass in a new value every time you execute the update.
如果值是有效的，则创建JSON对象且使用HTTPPUT执行更新调用来进行更新操作。
If the values are valid, a JSON object is created and the update call will be executed using HTTP PUT for updating.
有一种实现的方法是为Ant编写一个日志任务，在每一个目标开始或结束的时候执行更新。
One way to implement this is to code a logger for Ant that performs the update at the beginning or end of each target.
通过此策略，由于您未对数据保持读取锁，因此在执行更新操作时遇到失效数据异常的机率会增加。
With this strategy, because you are not holding read locks on data, the chance of getting stale data exceptions when you execute the update operations increases.
除非对现有应用程序执行更新，否则这些信息没有什么用处，但是对于编写新应用程序十分有帮助。
This information won't help existing applications unless you update them but can be useful when writing new ones.
如果连接到数据库的应用程序主要执行更新数据的事务，那么增加清除程序的数目会提高性能。
If the applications for a database consist primarily of transactions that update data, an increase in the number of cleaners will speed up performance.
这里可以变得复杂一些并将更新放入队列，这样可以在稍后服务器或网络恢复时重新执行更新。
You could get quite sophisticated here and queue up the updates so they can be re-tried later when the server or network are back up.
这里可以变得复杂一些并将更新放入队列，这样可以在稍后服务器或网络恢复时重新执行更新。
You could get quite sophisticated here and queue up the updates so they can be re-tried later when the server or network are back up.
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