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What's difference between "Optimistic" and "Pessimistic" locking?
In the pessimistic locking when user wants to update a data it locks the record and till then no one can update data. The Other user's can only view the data when there is a pessimistic locking.
In the optimistic locking many users can open the same record for updating,and hence increases maximum concurrency. The Record is only locked when updating the record. This is the most preferred way of locking practically. In today's time the browser based application is very common and having the pessimistic locking is not a practical solution.
How to clear a datagrid on a button click? You require to Clear the DataSource of the dadaGrid. So try this: dataSet1.Clear(); dataGrid1.DataSource = dataSet1.TableNam
Project Description: Need help to answer questions of VB.NET Skills required are .NET, Software Development, C# Programming, Visual Basic, Windows Desktop
What is a Hash Table? You can access an array using the INDEX value of that array, but how many times you know the real value of the index. The Hashtable provides a way of acce
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