Allows you to perform asynchronous database operations using an api that is modeled after the asynchronous model used by the . net framework 使您可以使用api执行异步数据库操作,该api在. net framework所使用的异步模型之后建模。
A string containing the name of the type that contains the methods that perform the delete , insert , select , and update database operations specified in the associated 中所指定的用以执行删除、插入、选择和更新数据库操作的方法。
Describes how to perform asynchronous database operations using an api that is modeled after the asynchronous model used by the . net framework 描述如何使用api执行异步数据库操作,该api在. net framework所使用的异步模型之后建模。
At times what happens is , we open the connection , performs the desired database operation , but we do not close the connection explicitly 经常发生的情况是:我们打开了一个连接,执行了所需要的数据库操作,但是我们没有显示的关闭连接。
If your database supports transactions , you can group multiple database operations into a single transaction to prevent database inconsistency 如果您的数据库支持事务,则可以将多个数据库操作组合到一个事务中,以防止数据库中出现不一致。
Procedures are useful for performing repeated or shared tasks , such as frequently used calculations , text and control manipulation , and database operations 过程对执行重复或共享的任务很有用,如常用的计算、文本和控件的操作以及数据库操作。
The process of development includes selecting main parameter , function building , data searching , body drawing and database operation , and so on 在开发过程中进行了特征参数的选择、函数建立、数据检索、实体绘制及图形数据库操作等多项工作。
The rms classes call into the platform - specific native code that uses the standard os data manager functions to perform the actual database operations Rms类调用特定于平台的本机代码,这种本机代码使用标准os数据管理器函数来执行实际的数据库操作。
Udb express gui tools , i described how to use the tools for performing basic database operations , controlling access to database objects , and setting up connectivity 中,我描述了如何使用一些工具来执行基本的数据库操作、控制对数据库对象的访问以及建立连接性。
Stored procedures are a precompiled collection of programming statements that perform operations in the database , and are stored under a name and processed as a unit 存储过程是一个执行数据库操作的编程语句的预编译集合,它们以某个名称保存并作为一个单元来处理。