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Which of the following lock is incompatible with all lock modes?

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+1 vote
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in SQL Server by (80.5k points)
Which of the following lock is incompatible with all lock modes?

(a) Intent exclusive (IX)

(b) Schema stability

(c) Schema modification

(d) Bulk update

The question was asked in an internship interview.

My question comes from Locking in portion Performance Tuning and Optimization of SQL Server

1 Answer

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Best answer
The correct option is (c) Schema modification

Easiest explanation: SQL Server allows only one Sch-M lock on an object at a time.

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