What is the difference between optimistic concurrency and pessimistic concurrency in ADO.NET?
- Optimistic concurrency assumes that conflicts between multiple users updating the same data are unlikely, so it allows multiple users to access and modify data concurrently without locking it.
- Optimistic concurrency locks the data when it's being accessed by one user to prevent other users from modifying it simultaneously.
- Pessimistic concurrency allows multiple users to access and modify data concurrently without locking it.
- Pessimistic concurrency assumes that conflicts between multiple users updating the same data are likely, so it locks the data when it's being accessed by one user to prevent other users from modifying it simultaneously.
Optimistic concurrency and pessimistic concurrency are two approaches to handling concurrent data access in ADO.NET. Optimistic concurrency assumes that conflicts between multiple users updating the same data are unlikely, so it allows multiple users to access and modify data concurrently without locking it. Pessimistic concurrency, on the other hand, assumes that conflicts are likely, so it locks the data when it's being accessed by one user to prevent other users from modifying it simultaneously.
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