ADO.NET Interview Questions
Questions Answers Views Company eMail

Advantage of ADO.Net?

QualSoft, TCS,

2 9079

How would u connect to database using .NET?

Tesco, TCS,

5 6645

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

1 4018




Difference between OLEDB Provider and SqlClient ?

2 8690

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

3 4978

Difference between DataReader and DataAdapter / DataSet and DataAdapter?

TCS,

3 29586

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

4 7801

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

2 5361




What happens when we issue Dataset.ReadXml command?

1 4664

How to find the count of records in a dataset?

6 18129

How to check if a datareader is closed or opened?

1 16025

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

TCS,

1 17866

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 9392

Differences between dataset.clone and dataset.copy?

TCS, Ksb,

2 5619

What is the use of parameter object?

Ksb, CDC,

4 7002


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Un-Answered Questions { ADO.NET }

What is the difference between the clone() and copy() methods of the dataset class?

65


How to generate a single aggregate?

50


What are three methods for displaying data in a syncfusion datagrid

119


Define bubbled event?

40


If a table contains 20000 records . In a page at each time 100 records to be displayed what are the steps you will take to improve performance? Will you use dataset or datareader?

66






Explain ado.net features?

41


What is the executescalar method?

58


What is sqldatareader?

22


Describe datareader object of ado.net with example.

48


What is the provider being used to access oracle database?

43


What is the use of data grid?

28


What is sql connection in ado.net?

22


What is the difference between Datareader and Dataset?

75


Which is better ole db or odbc?

21


What is ado.net full form?

28