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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.
What is a Metadata? Metadata is information about a PE. In COM, metadata is communicated through non-standardized type libraries. In .NET, this data is contained in the header
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VB. Net & XML 1. Design a form based applications using labels, text boxes, and buttons to perform basic arithmetic operations on integers. 2. Explain the concept of Excepti
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How can we implement singleton pattern in .NET ? The Singleton pattern basically focuses on having one and only one instance of the object running. Lets take an e.g. a windows
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