What is the difference in an abstract class and an interface?
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Which object needs to be closed?
what is data access layer?
What are the different layers of ado.net?
How to identify the updated rows in a dataset?
What are the different row versions available?
make a login control??
What are the different namespaces used in the project to connect the database?
How do you filter the data in datagrid?
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How many major types of connection objects in ADO.NET?
feature of ADO.Net
How do we invoke queries from the application ?
What is a non query?