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Completed transactions are always: Finalized or Unfinalized.
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If there isn't enough memory, more than one block for the outer relation (R) can be used
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Virtual machines virtualize both the operating system kernel and the application layer
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Asynchronous replication can result in data inconsistencies between nodes
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The Consistency of a transaction refers to the fact that a transaction transforms a consistent DB into another consistent DB.
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Finalized transactions (commit) are permanent changes in the DB.
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In MySQL, you can create databases using interfaces other than the command line.
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The security of multilevel databases cannot be increased through poly instantiation
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Horizontal fragmentation splits data based on tuple sets, whereas vertical fragmentation splits data based on attributes
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SQL injections are a type of security exploit in which attackers can "inject" SQL commands into an SQL statement via web page input.
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