multi-database transaction

ZODB is a robust, multi-user, object-oriented database system capable of storing and managing arbitrarily complex Python objects with transaction support and concurrency control.

ZODB是一个健壮的、多用户的和面向对象的数据库系统，它能够存储和管理任意复杂的Python对象，并支持事务操作和并发控制。

By applying carefully the database functions of transaction handling and concurrent access, the platform guarantees data reliability and data integrity in multi user network environment.

该系统还利用了数据库自身的事务处理与并发控制功能，解决了在多用户网络环境下的数据完整性和可靠性问题。

The multi-propose connection strategy cannot control the database operation for the same transaction and cannot ensure the ACID attribute, etc.

使用的连接复用策略无法控制属于同一个事务的多个数据库操作，不能保证事务的ACID属性等。