This abstraction retains many of the basic relational features of the JDBC interface, but simplifies them in such a way that makes it very easy to use.
这种抽象保留了JDBC接口的很多基本关系型功能，但对其进行了简化，从而让使用非常地方便。
For instance, MySQL doesn't offer full support for foreign keys, meaning it doesn't have all the relational features of Informix, which is a complete relational database.
例如，MySQL不提供全面的外键支持，这意味着它不具有Informix的所有关系特性，而Informix是一个完整的关系数据库。
For instance, MySQL doesn't offer full support for foreign keys, meaning it doesn't have all the relational features of Informix, which is a complete relational database.
例如，MySQL不提供全面的外键支持，这意味着它不具有Informix的所有关系特性，而Informix是一个完整的关系数据库。
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