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ADO.NET Interview Questions
Questions Answers Views Company eMail

Advantage of ADO.Net?

QualSoft, TCS,

2 9272

How would u connect to database using .NET?

TCS, Tesco,

5 6996

What are relation objects in dataset and how & where to use them?

1 4169

Difference between OLEDB Provider and SqlClient ?

2 8941

What are the different namespaces used in the project to connect the database?

3 5241

Difference between DataReader and DataAdapter / DataSet and DataAdapter?


3 29930

Which method do you invoke on the DataAdapter control to load your generated dataset with data?

4 8166

Explain different methods and Properties of DataReader which you have used in your project?

2 5558

What happens when we issue Dataset.ReadXml command?

1 4826

How to find the count of records in a dataset?

6 18654

How to check if a datareader is closed or opened?

1 16413

What are the differences between RAW, AUTO and Explicit modes in retrieving data from SQL Server in XML format?


1 18196

What happens when u try to update data in a dataset in .NET while the record is already deleted in SQL SERVER as backend?

5 9724

Differences between dataset.clone and dataset.copy?

Ksb, TCS,

2 5865

What is the use of parameter object?

CDC, Ksb,

4 7310

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Un-Answered Questions { ADO.NET }

Explain About components/objects. Usage of data adapters and tell the steps to retrieve data.


Explain the role of data provider in What is the role of data provider in


What is the default Timeout for SqlCommand.CommandTimeout property?


Explain sqlconnection object?


What does executequery return?


Define Execute Reader?


What is data adapter in with example?


What are the different namespaces?


What is the return type of executescalar?


How to pass values into a datatable?


What is oledb connection?


What do you know about ADO.NET's objects and methods?


What is the difference between ADO and ADO.Net?


What two types of data providers does ADO.NET supply? What determines which one you should use?


What is difference in record set and dataset?