Updating existing data in your database example
更新数据库示例中的现有数据
Algorithms that were right 95% of the time when they were dealing with a 13,000-image database, for example, were accurate about 70% of the time when confronted with 1 million images.
例如,在处理1.3万幅图像的数据库时,算法的准确率为95%,而在处理100万幅图像时,算法的准确率约为70%。
Suppose during the busiest time of the day, there are 200 applications connecting to the database described in Example 1.
假设在一天中最忙的时间里,有200个应用程序连接到例1中所描述的数据库上。
In this example, the user database is called notebook.
在这个例子中,用户数据库称作笔记簿。
For data transfer and storage in a database, for example, you have to think about the variations between character and binary serialization.
例如,在数据库中传输和存储数据时,就需要考虑介于字符和二进制之间的序列化格式。
This example USES the same environment, database, and database manager configuration Settings as example 1 above.
这个例子使用和例1同样的环境、数据库和数据库管理程序配置。
Select the entry for the database pool example and expand all the tree nodes.
选择数据库池示例的条目,并展开所有的树节点。
This article includes snippets of code examples and provides an example database that you can download.
本文包含一些可以下载的示例代码和一个示例数据库。
Even so, be aware that you can easily substitute any database server and JDBC driver within the example files to get your favorite database running with the example.
尽管如此,但还想告诉您的是:您可以方便地替换示例文件中的任何数据库服务器和JDBC驱动程序,以便在示例中使用您喜欢的数据库。
Database-the example application requires a database to store and retrieve film entries.
数据库—示例应用程序需要使用数据库保存和检索文件条目。
In the case of a database, for example, a trigger may be used to update a change tracking table immediately after a row is updated.
以数据库为例,可能会使用触发器在更新行之后立即更新更改跟踪表。
Create a transactional database: (Example) ISDB.
创建一个事务性数据库:(示例)isdb。
Data quality can be corrupted when inaccurate data is entered into a database. For example, someone could create a record for "Ms."
当在数据库中输入不准确的数据时,数据质量就会受损。
Example: Drop the database named testdb1.
示例:删除数据库testdb1。
Selecting a database for the example
为本文的示例选择一个数据库
You can use any other database, but my example listings use Settings for postgreSQL.
您可以使用任何其他数据库,但是我的示例清单使用的是适合postgreSQL的设置。
Copy a large file (for example 100mb +) from the main application server to database (for example SQL) server, and vice versa.
将一个大文件(例如100mb以上)从主应用程序服务器复制到数据库服务器,然后反过来复制。
We use the built-in Derby database for this example, with the physical database file residing in the temporary directory.
这个示例使用了内置的Derby数据库,物理数据库文件位于临时目录中。
CONNECT to your working database (in this example, it is the sample database DWESAMP: db2 CONNECT to DWESAMP).
连接到工作数据库(在本示例中,为示例数据库dwesamp:db 2CONNECTTO DWESAMP)。
Database maintenance (for example, identification that a database backup is required; this category is new to DB2 V8.2).
数据库维护(如辨别是否需要进行数据库备份;这一类别是DB 2“Stinger”中新增的)。
Database (for example, database operational state).
数据库(如数据库运行状态)。
Type the port number of the database instance (for example: 1433) for the default instance.
为默认实例输入数据库实例的端口号码(例如:1433)。
While the example database contains only a handful of records, it could just as easily include millions.
虽然示例数据库只是包含一些记录,但是它轻轻松松就能包含数百万条记录。
Logging can be performed in a collaboration using either a probe or a service call (to a database, for example).
日志可以通过使用探测或者服务调用来在协作中执行(比如对数据库)。
For example, new database partitions can be added.
比如,可以添加新的数据库分区。
For example, database replication and database synchronization is something different.
例如,数据库复制和数据库同步就是一些异类。
What does this look like in a real database - for example, one with a graphical user interface (GUI) tool?
在真实的数据库中—例如,带有图形用户界面(GUI)工具的数据库中,这将得到怎样的效果?
In the early days of database persistence (for example, JDBC), we commonly delegated transaction processing to the database.
在数据库持久性的早期(例如jdbc),我们一般会将事务处理委派给数据库。
This section provides some tuning guidelines for the IBM DB2 database system, as an example.
本小节以ibmDB 2数据库系统为例,提供一些数据库调优规则。
You may want to validate a script against a different type of database, for example, if you are planning to export the script for use in another type of database.
您可能希望在不同类型的数据库上验证脚本,例如,您可能准备将脚本导出为另一种类型的数据库。
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