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The situation in which each pair of transactions has read a data written by the other, but there is no data written by the transactions is called as _______

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The situation in which each pair of transactions has read a data written by the other, but there is no data written by the transactions is called as _______

(a) Deadlock

(b) Read skew

(c) Deadlock skew

(d) Write skew

The question was asked during an online interview.

The query is from Multiversion Schemes, Snapshot Isolation in portion Concurrency Control of RDBMS

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The correct choice is (d) Write skew

The explanation: The situation in which each pair of transactions has read a data written by the other, but there is no data written by the transactions is called as write skew.

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