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A transaction is made to wait until all ________ locks held on the item are released

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A transaction is made to wait until all ________ locks held on the item are released

(a) Compatible

(b) Incompatible

(c) Concurrent

(d) Equivalent

I got this question by my school principal while I was bunking the class.

Asked question is from Lock Based Protocols topic in section Concurrency Control of RDBMS

1 Answer

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Correct option is (a) Compatible

To explain I would say: A transaction is made to wait until all compatible locks held on the item are released. This ensures that no other transaction is concurrently accessing the same item.

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