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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 10727once data is fetched into dataset connection gets closed. but in datareader connection is always maintained...then why datareader is fast and mainly recommended ?
2 6017how to create a quiz software using 4 options to answer and how to check with answers in the database and award marks....
Ford,
1 4532What is the difference between a Dataset and DataReader? Can dataReader hold data from multiple tables?
3 9468I 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 8354i 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 6157
What do you know about ado.net's methods?
What is the default provider in ado.net?
If we are not returning any records from the database, which method is to be used?
What is datasource in ado.net?
What is an ado connection?
How do you implement locking concept for dataset?
Why do we serialize data?
Explain the DataAdapter.Update() and DataSetAcceptChanges() methods.
If a table contains 20000 records. In a page at each time 100 records to be displayed.
What are the namespaces used in ADO.Net to connect to a database?
What is an ADO.Net?
Which is faster datareader or dataadapter?
How can we serialize the dataset object?
How we can provide data to ado.net?
What provider ado.net use by default? Explain the role of data provider in ado.net?
