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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
4 10561once data is fetched into dataset connection gets closed. but in datareader connection is always maintained...then why datareader is fast and mainly recommended ?
2 5908how to create a quiz software using 4 options to answer and how to check with answers in the database and award marks....
Ford,
1 4448What is the difference between a Dataset and DataReader? Can dataReader hold data from multiple tables?
3 9333I 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.
2 8223i 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 6083
What is Data Provider?
Explain the difference in an abstract class and an interface?
What is ado.net and its features?
What are the types of databinding?
Define data access layer?
Explain ado.net features? Benefits? Drawbacks?
What are the important features of ado.net 2.0?
What is ado.net full form?
How to generate a single aggregate?
How can we save all data from dataset?
Explain why canot we use multiple inheritance and garbage collector paralelly in .net?
What are the different methods by which we can populate a dataset?
Explain how to bind the controls(best practice) comboboxes to the data in the dataset?
Which method in OLEDBAdapter is used to populate dataset with records?
What is data reader in ado.net?
