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Database training
4.2.02. Guarenteeing serializability
Two phase locking protocol (2PL)
Growing/expanding
Acquisition of all locks
Or upgrading of existing locks
Shrinking
Release of locks
Or downgrading
Guarentees serializability
equivalency without checking schedules
‹ 4.2.01. Introduction
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4.2.03. A typical transaction pair ›
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