However, indexes can either increase or decrease the performance of operations to add, change, and delete database records.
然而，索引要么增加要么减少了添加，变更，以及删除数据库记录的操作执行。
You can create and delete database objects such as tables, view, stored procedures, and functions using non-modal designers.
可以使用非模态的设计程序创建和删除数据库对象，例如表、视图、存储过程和函数。
After users delete messages or empty the trash, they must compact their mail database on the server.
用户删除消息或清空垃圾后，必须压缩服务器上的邮件数据库。
After you upload the files, create database tables, and then delete the installation script.
在上传了这些文件之后，创建数据库表，然后删除安装脚本。
However, the business may require these individuals to be able to create, read, update, and delete data in your database.
然而，企业可能需要这些人能够在您的数据库中创建、读取、更新和删除数据。
In some cases, you may have to unload the tables, delete all the data, change the database design, then reload the data.
在某些情况中，您还需要删除表以及表中的所有数据，修改数据库的设计，然后重新加载数据。
As we will show, for a database, the operations include create, update, and delete.
下面我们将介绍，对数据库的操作包括创建、更新和删除。
After you upload the files, you will create database tables, and then delete the installation script.
上传文件之后，您将创建数据库表格，然后删除安装脚本。
Because you're using the cloud version of your application, you can delete and restore your database without any users complaining.
由于您正在使用您的应用程序的云版本，您可以删除并恢复您的数据库，这不会引起用户的抱怨。
The user needs to have rights to create, modify, and delete tables in the SAMPLE database.
该用户需要在SAMPLE数据库中创建、修改和删除数据表的权利。
Delete the loaded data so that the initial database is empty.
删除已加载的数据，以便初始数据库为空。
DDL commands are used to create, modify, or delete items (such as tables) in a database.
DDL命令用来创建、修改或删除数据库中的项目(例如表)。
The simple answer is to delete the table from the database and, if necessary, create a replacement table.
简单的答案是从数据库中删除表。而且，如果必要，再创建一个替代表。
It can't add documents to the database, delete documents from the database, modify existing documents, or do anything else, which is a pretty gaping hole in its capabilities.
它不能向数据库中添加文档、从数据库中删除文档、修改已有的文档或者其他操作，这是其功能中的一个很大漏洞。
In that discussion, I suggested readers running the example code should delete the existing database file containing the results from previous runs.
在上次讨论中，我建议运行示例代码的读者删除包含之前运行结果的已有数据库文件。
In my case, I used the file in listing 4 to seed the database before running my component tests and then used the same file to indicate which data to delete from the database upon test completion.
在本文的例子中，将在运行组件测试前使用清单4中的文件在数据库中播种，然后使用相同的文件指示测试完成时从数据库中删除哪些数据。
Inside of a session it is typical to add data to the database, perform queries, or delete data.
在会话内部，这通常是添加数据到数据库中、执行查询或删除数据。
Data remains in the performance database forever unless you delete it manually.
只要不手动删除这些数据，它们就会永远保留在性能数据库中。
Documents in the database are randomly selected for update and delete operations.
更新和删除操作所针对的文档是在数据库中随机选择的。
The REST API will allow third-party developers to retrieve, add, delete, and update books in this database using normal REST conventions.
RESTAPI将允许第三方开发人员使用常规REST协定检索、添加、删除和更新该数据库中的书籍。
From a performance standpoint, levels 3 and 5 are least desirable because they delete the common forms database content.
从性能的观点来看，级别3和级别5是最不想要的级别，因为它们删除了公共表单数据库的内容。
We'll be using the "inbound interface" of this adapter to kick-off business processes when a create, update, or delete occurs in a database table.
当数据库表中发生创建、更新或删除事件时，我们将使用该适配器的“入站接口”来调用业务流程。
Best practice: To save space in the analysis database, you should delete the output tables from older runs when they are no longer needed.
最佳实践：为节省分析数据库的空间，应当从旧有运行中删除不需要的输出表。
The JDBC resource adapter forwards changed information in the EIS, in this case a create, update, or delete in a database, to an export in your module.
JDBC资源适配器将EIS中更改的信息(本示例中为数据库的创建、更改或删除)转发到模块中的导出。
When you no longer need the ability to roll back the broker, you can delete the broker's system database, unless it is still required for user data.
如果您不再需要回滚代理的功能，那么可以在系统数据库不储存用户数据时删除它。
For example, it can be used to add or delete entries from a database.
例如，它可用来从数据库添加或删除条目。
The only exceptions are when a user does not have delete rights or when the database is marked as corrupted; then, the .
唯一例外是当用户没有删除权限或数据库被标记为损坏 ；
All the required features for editing simple records from a database (add, delete, edit, update, and list) are present.
从数据库中编辑简单记录必需的所有特性(添加、删除、编辑、更新和列表)都存在。
Remove : Delete the given entity from the database.
remove：从数据库删除指定的实体。
Delete an existing embedded Derby database.
删除现有的嵌入式Derby数据库。
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