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 12067

How would u connect to database using .NET?

TCS, Tesco,

5 11072

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

1 6138

Difference between OLEDB Provider and SqlClient ?

2 11543

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

3 8323

Difference between DataReader and DataAdapter / DataSet and DataAdapter?

TCS,

3 33279

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

4 12333

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

2 7948

What happens when we issue Dataset.ReadXml command?

1 6706

How to find the count of records in a dataset?

6 23322

How to check if a datareader is closed or opened?

1 19903

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

TCS,

1 20459

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 13715

Differences between dataset.clone and dataset.copy?

Ksb, TCS,

2 8508

What is the use of parameter object?

CDC, Ksb,

4 10834

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Un-Answered Questions { ADO.NET }

What is difference between Dataview and Datatable?

1121

Explain why canot we use multiple inheritance and garbage collector paralelly in .net?

1070

What is ado circle?

1189

What is an ADO.Net?

1046

What is a dynaset in access?

1109

What is the difference between executequery and executenonquery?

975

What is linq and entity framework?

1072

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

1192

What is sqldatasource?

981

What are dcl commands?

1051

What is the DataTableCollection?

1104

Does executenonquery return a value?

1005

What is the use of sqldatareader class?

1059

How is it possible to get 2 tables of data at a time by using data reader?

999

Which is faster ado.net or linq?

1069

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