Which one is a DataAdapter object?

DataAdapter is a part of the ADO.NET Data Provider. … We can use the DataAdapter in combination with the DataSet Object. That is these two objects combine to enable both data access and data manipulation capabilities. The DataAdapter can perform Select , Insert , Update and Delete SQL operations in the Data Source.

What is the use of DataAdapter?

Adapters are used to exchange data between a data source and a dataset. In many applications, this means reading data from a database into a dataset, and then writing changed data from the dataset back to the database. However, a data adapter can move data between any source and a dataset.

What is DataAdapter in SQL?

The SqlDataAdapter, serves as a bridge between a DataSet and SQL Server for retrieving and saving data. … For more information, see Adding Existing Constraints to a DataSet. SqlDataAdapter is used in conjunction with SqlConnection and SqlCommand to increase performance when connecting to a SQL Server database.

Which object holds read only and forward only data that you retrieve from data source?

DataReader object
Answer: DataReader object is ‘stream-based’, ‘read-only’ and ‘forward-only’, which provides a connection based data access from a database. This contains a ‘Read ()’ method that retrieves the data stored in a data source.
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Few are given in the table below:
DataProvider DataReader
ODBC ODBCDataReader
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Feb 3, 2022

What is the DataAdapter?

A DataAdapter is used to retrieve data from a data source and populate tables within a DataSet. … The DataAdapter uses the Connection object of the . NET Framework data provider to connect to a data source, and it uses Command objects to retrieve data from and resolve changes to the data source.

What are the types of DataAdapter?

The DataAdapter works as a bridge between a DataSet and a data source to retrieve data. DataAdapter is a class that represents a set of SQL commands and a database connection.
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DataAdapter Constructors.
Constructors Description
DataAdapter() It is used to initialize a new instance of a DataAdapter class.

Which object of ADO.NET has the best performance for retrieving the data?

A DataReader object has faster access to data. A DataSet object has slower access to data.

Which of the following is the best to retrieve read-only forward-only stream of data from database?

Which is the best to retrieve Read-Only, Forward-only stream of data from database. Explanation: Datareader is the disconnected record set which provides a fast way to retrieve the data from the database.

Which of the following method is supported by DataAdapter?

Explain the basic methods of Dataadapter.

Some basic methods of dataadpater are: Fill : adds or updates the rows to dataset from the datasource. FillSchema : adds a datatable with the same schema as in the datasource.

Which object in ADO.NET is similar to the recordset object of radio?

The data table is similar to the recordset object that is found in ADO. Using this object, you can filter and sort your data, keeping various views of the data.

Which ADO.NET object helps to check the data integrity?

Ensuring Data Integrity with Hash Codes describes how you can generate and verify hash values.

What is DataSet object in ADO.NET Mcq?

DataSet provides a disconnected view of a data source. Dataset enables to store data from multiple tables and multiple sources. We can create a relationship between the tables in a DataSet. All of the above is true.

Which database is the ADO.NET OleDbConnection object designed for?

The sqlconnection object, that is designed specially to connect to Microsoft SQL Server and the OleDbConnection object, that is designed to provide connection to a wide range of databases, such as Microsoft Access and Oracle.

What is a RecordSet in VB?

A Recordset object represents the records in a base table or the records that result from running a query.

What is the use of SQLCommand object Mcq?

What is the use of SQL command object? SQLCommand object allows user to interact with the users. SQLCommand object allows user to interact with the database.

Which of the following is the object of .NET data provider?

A . NET data provider consists of the following core objects: The Connection object is used to connect to a specific data source. The Command object executes a command against a data source.

Which object does the data aware control bind to?

dataset
Answer: The data-aware control bind to dataset.

Which option is used to add database in VB net?

Select tab from top menu-bar PROJECT, then click Add New Data Source… Select the Database and click the Next button. Select Dataset and click the Next button.

What are the command object methods Mcq?

Command object has three methods:
  • Execute : Executes the queries, stored procedures etc.
  • Cancel : Stops the method execution.
  • CreateParameter : To create a parameter object. Next Page »

What is use of ExecuteReader () method Mcq?

– ExecuteReader: This method works on select SQL query. It returns the DataReader object. Use DataReader read () method to retrieve the rows.