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- This paper proposes DBXI (DTD-based XML Indexing), a XML indexing method that utilizes the DTD information to speed up the evaluation of XML path query. 本文提出一种XML索引方法DBXI(DTD-Based XMLIndexing),其中心思想是发掘DTD中隐含的结构信息,提高XML文档路径查询的效率。
- The first index on an XML column is the primary XML index. XML列的第一个索引是主XML索引。
- Type column in a table can have its own primary XML index. 类型列可以有自己的主XML索引。
- Creates a secondary XML index on columns (PK, path and node value) of the primary XML index where PK is the primary key of the base table. 为PK为基表主键的主XML索引列(PK、路径值和节点值)创建辅助XML索引。
- A primary XML index can be created on a single xml type column. 您可以对单个xml类型列创建主XML索引。
- Although a primary XML index avoids having to shred the XML binary large objects at run time, it may not provide the best performance for queries based on path expressions. 虽然主XML索引避免了在运行时拆分XML二进制大型对象,但是它不会为基于路径表达式的查询提供最好的性能。
- A Java based XML driven framework providing developers with easy access to database stored procedures and with a minimum of code. 驱动框架,为开发者提供了使用最少的代码,简单访问数据库存储进程的方法。
- XML indexes are not supported in this view. 此视图不支持XML索引。
- Based XML,this paper introduces a mode for heterogeneous data exchange system,discusses the function of every module in system and its workflow. 基于XML该文提出了一个异构数据交换的系统模型并探讨了该系统中各模块的功能和工作流程。
- A PRIMARY KEY constraint cannot be dropped if an XML index exists on the table. 如果表中存在XML索引,则不能删除PRIMARY KEY约束。
- XML index maintenance cost during data modification must be considered. 必须考虑数据修改过程中的XML索引维护开销。
- XML index type, primary or secondary, and the secondary type and description. XML索引类型:主要和次要,以及次要类型和说明。
- However, only one primary XML index per xml type column is permitted. 但是,一个xml类型列只允许有一个主XML索引。
- DTD based ICS proforma and generation method 基于文档类型定义的实现一致性声明文稿及生成方法
- The first index on the xml type column must be the primary XML index. xml类型列的第一个索引必须是主XML索引。
- This query returns the column name on which the specified XML index is created. 此查询返回为其创建指定的XML索引的列的名称。
- The user must drop the XML indexes first and then re-create them. 用户必须首先删除XML索引,然后再重新创建它们。
- XML indexes use the same partitioning scheme and partitioning function of the base table. XML索引使用基表的相同分区方案和分区函数。
- A Generation Method of DTD Based on Object-oriented Data Models 一种基于对象模型的DTD生成方法
- Therefore, you cannot have an XML index and a non-XML index on the same table with the same name. 因此,同一表的XML索引和非XML索引不能具有相同的名称。