The distribution of transactions and unpredictability of transaction triggering make the transaction schedule more difficult in distributed active real-time database system (DARTDBS).

事务的分布性和事务触发的不可预测性使得分布式主动实时数据库系统中的事务调度变得较为复杂。

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Transaction scheduling system is affair schedule center, and the aim of transaction scheduling is to ensure real-time credibility of data in the real-time database and the reliability of run for DCS.

调度系统是事务调度中心，事务调度目的在于保证实时数据库中数据的实时有效性，从而保证DCS系统可靠的运行。

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Transaction scheduling system is affair schedule center, and the aim of transaction scheduling is to ensure real-time credibility of data in the real-time database and the reliability of run for DCS.

调度系统是事务调度中心，事务调度目的在于保证实时数据库中数据的实时有效性，从而保证DCS系统可靠的运行。

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