改进了安全级比较的规则，使得更适合现实中空间数据存取控制的需求。
Improve the rules of comparing the security label, which meet the practical demand of the Access Control for spatial database.
这儿的问题是现有应用通过实现数据存取和验证逻辑有效控制了企业数据的访问。
The issue here is that existing applications effectively control enterprise data access through implementation of the data access and validation logic.
Rub on Rails开发者明白有一个高效的控制器和数据库存取是多么的重要。
Ruby on Rails developers know how critical it is to have an efficient controller and database access.
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