如果不可能设置复制,那么仍然可以使用昵称作为源来填充相关联的空间表,并在组合视图中联结这两者。
If replication is not possible, you can still populate an associated spatial table using the nickname as the source, and join the two in a combined view.
联结和用户谓词的结果应该以(联结)AND(用户谓词)的形式组合在一起。
The result of the join and user predicates should be ANDed together in the form (joins) and (user predicates).
原生 XML 数据库一个很大的优点是,可以运行能够将包含在多个 XML 文档中的信息组合在一起的查询(或者按 SQL 的说法称为联结)。
One big advantage of a native XML database is that it can run queries that combine (or join, in SQL parlance) information contained in multiple XML documents.
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