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.Includes: 12 Articles 700 Skill Questions 10 Skill Videos 20 Quiz Sections
Ado.net Skills - For Beginners & ProfessionalsThe 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
"The history of Ado.net begins with the microsoft product the class libraries were originally written using a Query code compiler system Simple Managed"
- Ado.net Easy to Learn
- Ado.net query System
- Ado.net importent part of Database
- Ado.net diffrent Concepts.
- The 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.
- ADO.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 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 SQL
- LINQ 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.
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Q1.What is an ADO.Net?
- ADO.Net is commonly termed as ActiveX Data Objects which is a part of .Net Framework. ADO.Net framework has set of classes which are used to handle data access by connecting with different databases like SQL, Access, Oracle.
Q2. What are two important objects of ADO.Net?
- There are two important objects of ADO.Net:
- DataReader and .
Q3. What is LINQ?
- LINQ is native query language for .NET framework and it is specially designed to support queries with the .net applications. LINQ can be connected to SQL and MS Access.
Q4. What is DataReader Object?
- Datareader is an object of ADO.Net which provides access to data from a specified data source. It consists of classes which sequentially read data from a data source like Oracle, SQL or Access.
Q5.What is Dataset Object?
- A Dataset is set to be collection of data with a tabular column representation. Each column in the table represents a variable and the row represents to value of a variable. This Dataset object can be obtained from the database values.
Q6.What is object pooling?
- Object pooling is nothing but a repository of the objects in memory which can be used later. This object pooling reduces the load of object creation when it is needed. Whenever there is a need of object, object pool manager will take the request and serve accordingly.
Q7.What is connection pooling?
- Connection pooling consists of database connection so that the connection can be used or reused whenever there is request to the database. This pooling technique enhances the performance of executing the database commands. This pooling definitely reduces our time and effort.
Q8.What is Data view?
- Data view is the representation of data in various formats and it can be requested by the users. Data can be exposed in different sort orders or filter on the user condition with the help of Data view. Data Customization is also possible through Data View.
Q9. What is Data Adapter?
- Data Adapter is a part of ADO.NET data provider which acts as a communicator between Dataset and the Data source. This Data adapter can perform Select, Insert, Update and Delete operations in the requested data source.
Q10. What is the use of SqlCommand object?
- SQLCommand object that allows user to interact with the database. This object mainly used to query the database and it can be of different types – Select, Insert, Modify and Delete.
Q11.What is the use of connection object?
- ADO.Net Connection object is used to establish a connection between application and the data source. SQL Commands can be executed once this connection has been established. It is mandatory to close the connection object once data base activities are completed.
Q12.Is it possible to edit data in Repeater control?
- No, it is not possible to edit data in the Repeater control.