The components of ADO.Net are Dataset, Data Reader, Data Adaptor, Command, connection.
In an ASP.NET interview, when asked about the components of ADO.NET, you can provide the following answer:
ADO.NET (ActiveX Data Objects .NET) is a part of the .NET framework used to access and manipulate data from various data sources. The main components of ADO.NET are:
- Connection: Represents a connection to a data source, such as a database. It provides methods for opening, closing, and managing connections to the database.
- Command: Represents a SQL statement or stored procedure to be executed against the data source. It includes methods for executing commands and retrieving results.
- DataReader: Provides a forward-only, read-only stream of data from a data source. It’s typically used for retrieving data when a large result set is expected, and it’s efficient in terms of memory usage.
- DataAdapter: Acts as a bridge between the DataSet and the data source. It populates a DataSet and resolves changes back to the data source.
- DataSet: Represents an in-memory cache of data retrieved from a data source. It can contain multiple DataTables, DataRelations, and constraints, making it suitable for working with disconnected data.
- DataTable: Represents a single table of in-memory data within a DataSet. It consists of a collection of DataRow objects, each representing a single record in the table.
- DataRow: Represents a single row of data within a DataTable. It allows access to individual column values and facilitates manipulation of data at the row level.
- DataView: Provides a customized view of a DataTable, allowing sorting, filtering, and searching of data.
Understanding these components and their roles in ADO.NET is crucial for efficiently working with data in ASP.NET applications.