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This article mainly explains "what is the architecture of ADO.NET". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the architecture of ADO.NET".

For learning ADO.NET architecture, the first thing you encounter is the configuration of the environment. I used to learn Visual Studio2003, but I didn't use it much. So there is a week is basically in practice. Net 1.0, greatly affecting the efficiency of work.

Connection mode (Connected Mode) and non-connection mode (Disconnected Mode). Developers who have used the ADO.NET architecture should be very familiar with the former pattern, while the latter pattern is unique to ADO.NET. Compared with the traditional database access mode, the connectionless mode provides more upgradeability and flexibility for the application. In this mode, once the application gets the required data from the data source, it disconnects from the original data source and stores the obtained data in the form of XML in the main memory. After the application has finished processing the data, it obtains the connection to the original data source and updates the data.

The DataSet class in ADO.NET is the core of the disconnected mode, and the dataset object (DataSet) stores data in the form of XML. ADO.NET architecture applications can get a dataset object from either a database or an XML data stream. From the user's point of view, it doesn't matter where the data source is, and it doesn't matter. Such a unified programming model can be applied to any application that uses dataset objects.

Another very important part of the ADO.NET architecture is the data provider object (Data Provider), which is a prerequisite for accessing a database. The ADO.NET architecture can generate corresponding dataset objects through its applications; at the same time, it also provides database access support in connection mode. Figure 1 depicts the overall architecture of ADO.NET.

The architecture of ADO.NET 's data access technology. ADO.NET supports SQL Server data access and OLE DB data access. In comparison, the former is a database access engine for SQL Server, so accessing the SQL Server database is much more efficient, but only SQL Server is supported. The latter is a general database access engine, which can support a wide range of databases, but it is not as efficient as the former.

For developers, if a database feature is not used, it is generally used in the same way. The connection part of the ADO.NET architecture database, the Connetion object. Provides a way to connect to a specific database, whether you use SqlConnection objects or OleDbConnection objects.

Thank you for reading, the above is the content of "what is the architecture of ADO.NET". After the study of this article, I believe you have a deeper understanding of what the architecture of ADO.NET is, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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