Answer
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Work Step by Step
Exclusive access to an item in a database means that only one transaction can access and modify that item at a time, ensuring that no other transactions can interfere with it until the current transaction is completed.
On the other hand, shared access allows multiple transactions to read the item simultaneously, but only one transaction can modify it at any given time.
The distinction between exclusive and shared access is crucial for maintaining data integrity and preventing concurrency issues in a database. Exclusive access ensures that modifications to the data are performed atomically, avoiding conflicts that could arise from multiple transactions attempting to modify the same item simultaneously. Shared access, on the other hand, allows for efficient reading of data by multiple transactions without the risk of data corruption, but it still enforces exclusive access during write operations to maintain consistency and prevent conflicts.
