Relational Database Management System Mcqs
Page No. 52
In _______ schemes, each write operation creates a new version of Q
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State true or false: Exclusive locks are held until transaction commit in degree two consistency
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Which of the following does cursor stability ensure
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To prevent the phantom phenomenon, _______ is used
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State true or false: Key value locking provides increased concurrency
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Transactions that involve user interactions are called __________
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Which of the following is included in the operational mechanism of the index locking protocol?
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Which of the following does not lock the entire index
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________ deletes a data item from a database
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