通过验证复制中的所有参与方都具有与主控复制定义匹配的表和复制的列属性，确保数据完整性。
Ensures data integrity by verifying that all participants in the replicate have table and replicated column attributes that match the master replicate definition.
除了这些表，我们使用一个视图(图5)简化了获取一个完整服务定义的数据库访问。
In addition to these tables, we are using a view (Figure 5), allowing us to simplify database access for getting a complete service definition.
我们还要实现另外一些任务：让这个表包含完整的结构定义；还要确保这个数组前面没有空项，这样就不会浪费空间。
A little extra work would also allow tables containing full struct definitions; a little more would ensure that space isn't wasted at the front of the array with useless empty entries.
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