ADO.NET Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

ADO.NET Interview Questions

Questions Answers Views Company eMail

Advantage of ADO.Net?

QualSoft, TCS,

2 11846

How would u connect to database using .NET?

TCS, Tesco,

5 10612

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

1 5954

Difference between OLEDB Provider and SqlClient ?

2 11249

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

3 7963

Difference between DataReader and DataAdapter / DataSet and DataAdapter?

TCS,

3 32922

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

4 11917

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

2 7703

What happens when we issue Dataset.ReadXml command?

1 6522

How to find the count of records in a dataset?

6 22769

How to check if a datareader is closed or opened?

1 19626

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

TCS,

1 20242

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 13230

Differences between dataset.clone and dataset.copy?

Ksb, TCS,

2 8208

What is the use of parameter object?

CDC, Ksb,

4 10418

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Un-Answered Questions { ADO.NET }

How to identify the controls which can be used for binding data?

951

What is difference between executenonquery and executequery?

904

Explain executenonquery?

1067

What is sqldatareader in ado.net?

871

What are dcl commands?

954

how can implement dropdownlist in particular of dataset when try to update?

2719

What is Dataset Object?

965

What is the difference between executequery and executenonquery?

866

Define different execute methods of ADO.NET command object ?

1003

What is typed dataset ?

1104

What is the executescalar method?

1017

Define the executescalar method?

876

What are the essential features of ado.net?

895

In how many ways we can retrieve table records count? How to find the count of records in a dataset?

956

What is executequery?

896

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