DB 2既可阻止此类操作被执行，也尝试以这种保护数据完整性的方式执行这些操作。
DB2 can either prevent such operations from being performed, or it can attempt to perform these actions in a way that will safeguard data integrity.
作者在可编程序计算器上编制了一个完整的程序，它既可用于岩体质量分类，又可用于判断采场稳定性。
The author has also worked out a complete programme on a programmable computer, which can either be used for rock-mass classification or for stability determination.
基于此框架，既可以实施多等级保密性安全政策，又可以实施多等级完整性安全政策。
Based on SLCF, both multilevel confidential policy and multilevel integrity policy can be expressed and enforced.
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