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ADO.NET is a data access technology from the Microsoft .NET Framework that provides communication between relational and non-relational systems through a common set of components. ADO.NET is a set of computer software components that programmers can use to access data and data services from a database. It is a part of the base class library that is included with the Microsoft .NET Framework. It is commonly used by programmers to access and modify data stored in relational database systems, though it can also access data in non-relational data sources. ADO.NET is sometimes considered an evolution of ActiveX Data Objects (ADO) technology, but was changed so extensively that it can be considered an entirely new product.
The name "Ado.net" was inspired by musical notation where a sharp indicates that the written note should be made a semitone higher in pitch. The formal programming concept of objects was introduced in the a programming language designed for discrete eventnof data
History"The history of Ado.net begins with the microsoft product the class libraries were originally written using a Query code compiler system Simple Managed"
Great AchievementThe ability to write the Ado.net query language — the cornerstone of all relational database operations — is essential for anyone who develops database applications. In this training course, you learn how to optimize the accessibility and maintenance of data with the SQL programming language, and gain a solid foundation for building, querying, and manipulating databases.
ArchitectureADO.NET is conceptually divided into consumers and data providers.The consumers are the applications that need access to the data, and the providers are the software components that implement the interface and thereby provide the data to the consumer.Functionality exists in Visual Studio IDE to create specialized subclasses of the DataSet classes for a particular database schema, allowing convenient access to each field in the schema through strongly typed properties. This helps catch more programming errors at compile-time and enhances the IDE's Intellisense feature
Entity FrameworkEntity Framework (EF) is an open source object-relational mapping (ORM) framework for ADO.NET, part of .NET Framework. It is a set of technologies in ADO.NET that supports the development of data-oriented software applications. Architects and developers of data-oriented applications have typically struggled with the need to achieve two very different objectives. The Entity Framework enables developers to work with data in the form of domain-specific objects and properties, such as customers and customer addresses, without having to concern themselves with the underlying database tables and columns where this data is stored. With the Entity Framework, developers can work at a higher level of abstraction when they deal with data, and can create and maintain data-oriented applications with less code than in traditional applications.
LINQ to SQLLINQ to SQL (formerly called DLINQ) allows LINQ to be used to query Microsoft SQL Server databases, including SQL Server Compact databases. Since SQL Server data may reside on a remote server, and because SQL Server has its own query engine, it does not use the query engine of LINQ. Instead, it converts a LINQ query to a SQL query that is then sent to SQL Server for processing. However, since SQL Server stores the data as relational data and LINQ works with data encapsulated in objects, the two representations must be mapped to one another. For this reason, LINQ to SQL also defines a mapping framework. The mapping is done by defining classes that correspond to the tables in the database, and containing all or a certain subset of the columns in the table as data members.
Mock Tests & Assignments
Each Module will be followed by objective mockup tests and practical assignments which help you to monitor your learning progress and Evaluate yourself.
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