What is a deadlock in SQL? How can you prevent it?
A deadlock occurs when two or more transactions hold locks that the other needs, causing them to wait indefinitely.
Ways to prevent deadlocks:
• Use consistent lock ordering.
• Keep transactions short and fast.
• Use lower isolation levels when possible.
• Implement deadlock detection mechanisms.
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Which of the following is not a database object TABLESPACE TABLE INDEX NONE
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