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CS315x - CS471 Advanced Database Systems
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A transaction is well-formed if it:
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Binary lock values 0 and 1 correspond to:
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Unlock(X) makes X:
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The conflict matrix in the slides indicates read-read pairs are:
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In the slides, a lock is defined as:
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The write_lock(X) pseudo-code waits until:
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Serializability means concurrent execution is equivalent to:
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The two basic lock modes are:
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With an exclusive lock on X:
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With a shared lock on X:
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