Repeatable Read isolation is the most restrictive level of isolation.
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Q22: In general,optimistic locking is the preferred technique
Q23: Resource locking must be carefully planned because
Q24: Resources are locked for a shorter amount
Q25: Two-phased locking has a growing phase and
Q26: A static cursor processes a snapshot of
Q28: In two-phase locking,all locks are obtained during
Q29: Nonrepeatable reads occur when a transaction rereads
Q30: The goal of database security is to
Q31: Transaction level consistency means that all rows
Q32: A dynamic cursor saves primary key values
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