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

ADO.NET Interview Questions

Questions Answers Views Company eMail

FetCh Records No 5 to 10 From Dataset

4 8581

When multiple users attempt to modify data at the same time Ex user 1 is updating record at same time user2 deleted record sucessfully.now user1 has press update button . how to handle concurrency

Digital Group,

4 10578

What is the main difference between ADO and ADO.Net

HCL,

4 10037

once data is fetched into dataset connection gets closed. but in datareader connection is always maintained...then why datareader is fast and mainly recommended ?

2 5917

what is different between SqlCommand object and Command Behaviour Object

3 12946

what is bubbled event can u pls explain

Wipro,

3 8095

What are the three Objects of ADO.

10 12286

how would i implement dropdownlist in gridview using c#

2 6826

what is meant by connection pooling and event pumbling in ado.net

TCS,

3 10073

how to create a quiz software using 4 options to answer and how to check with answers in the database and award marks....

Ford,

1 4456

What is the difference between a Dataset and DataReader? Can dataReader hold data from multiple tables?

Fulcrum Logic, Merrill Lynch,

3 9337

I loaded the dataset with a table of 10 records. One of the records is deleted from the backend, How do you check whether all the 10 records were present while updating the data(Which event and steps) and throw the exception.

Fulcrum Logic, Satyam,

2 8249

What are the ADO.NET Controls?

6 8702

i making a project using windows application c#, i want to show user name, password, and one button login. i wanna make it with sealed class .how its possible . when i clicked my login button all project should be open. pls cleare me.

1 6088

what is typed and untyped dataset

3 19062

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Un-Answered Questions { ADO.NET }

What are all the different methods under sqlcommand?

986

What is difference in record set and dataset?

1077

What are all the classes that are available in System.Data Namespace?

1013

What is ado.net in mvc?

928

What is concurrency? How will you avoid concurrency when dealing with dataset? (One user deleted one row after that another user through his dataset was trying to update same row. What will happen? How will you avoid the problem?)

1000

What is the difference between Data adaptor and Data set?

1041

oledbdataadpter with ms access in c#.net giving exception System.Data.OleDb.OleDbException while writing adapter.update(dataset,"tabname"); how to update the database from dataset?

2382

What is bubbled event can you please explain?

1049

How to bind the controls(best practice) comboboxes to the data in the dataset?

1049

Which architecture does Datasets follow?

1039

What is disconnected data?

1044

How can you add or remove rows from the datatable object of dataset?

1025

Explain how to find the given query is optimised one or not?

1034

How to copy the contents from one table to another table and how to delete the source table in ado.net?

1039

What is the difference between OLEDB Provider and SqlClient?

987

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