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公开(公告)号：US20080092037A1
公开(公告)日：2008-04-17
申请号：US11729943
申请日：2007-03-28
CPC分类号： G06F17/2725 , G06F17/2247
摘要： A method and apparatus for validating XML documents in a streaming fashion is provided. A streaming validator validates an XML document by comparing the contents of the XML document to an XML schema. Tokens are generated for each element or attribute of the XML schema and for each element or attribute of the XML document using the same generator token function. The elements and attributes of the XML document and XML schema are compared using tokens rather than string comparisons to perform the validation more efficiently.
摘要翻译： 提供了以流式方式验证XML文档的方法和装置。 流验证器通过将XML文档的内容与XML模式进行比较来验证XML文档。 使用相同的生成器令牌函数为XML模式的每个元素或属性以及XML文档的每个元素或属性生成令牌。 使用令牌而不是字符串比较来比较XML文档和XML模式的元素和属性，以更有效地执行验证。
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92.发明申请公开(公告)号：US20070083542A1
公开(公告)日：2007-04-12
申请号：US11246039
申请日：2005-10-07
IPC分类号： G06F7/00
CPC分类号： G06F17/30923 , G06F7/00
摘要： A database server determines, on an element-level of granularity, what form of VARRAY storage to map collections of elements defined by a XML schema. A collection element may be mapped to an in-line VARRAY or an out-of-line VARRAY. The determination may based on a variety of factors, including the database type mapped to the collection element, database limitations that limit the form storage for certain database types, and annotations (“mapping annotations”) embedded within that XML schema that specifying a database type for database representation of a collection element or a form of VARRAY storage.
摘要翻译： 数据库服务器根据粒度级别确定使用什么形式的VARRAY存储来映射由XML模式定义的元素集合。 集合元素可以映射到串行VARRAY或行外VARRAY。 该确定可以基于各种因素，包括映射到集合元素的数据库类型，限制特定数据库类型的表单存储的数据库限制以及嵌入在指定数据库类型的XML模式中的注释（“映射注释”） 用于收集元素或VARRAY存储的形式的数据库表示。
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公开(公告)号：US20060080345A1
公开(公告)日：2006-04-13
申请号：US11286873
申请日：2005-11-22
IPC分类号： G06F17/30
CPC分类号： G06F17/30938 , G06F17/2205 , G06F17/2229 , G06F17/2247 , G06F17/30321 , G06F17/30911 , G06F17/30917
摘要： A method and apparatus for efficiently maintaining XML index structures in a database system is provided. Instead of immediately synchronizing the XML index structures for every change submitted to the database, the changes are stored in a PENDING table. The XML index structures are periodically synchronized, based on certain criteria or at a user's discretion. Between synchronizations, the XML index structures may be in stale mode or current mode. If in stale mode, a request to access indexed information will use the XML index structures to find the desired indexed information without checking the PENDING table. If in current mode, a request to access indexed information will search the XML index structures and also check the PENDING table to determine 1) whether the indexed information has been updated or deleted, and 2) whether information relevant to the request has been inserted or updated.
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公开(公告)号：US20050228828A1
公开(公告)日：2005-10-13
申请号：US11059612
申请日：2005-02-15
申请人： Sivasankaran Chandrasekar , Ashish Thusoo , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla
发明人： Sivasankaran Chandrasekar , Ashish Thusoo , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla
CPC分类号： G06F17/30914 , G06F17/30911 , G06F17/30929 , Y10S707/99942 , Y10S707/99943 , Y10S707/99945 , Y10S707/99948
摘要： A method and system are provided for extracting a valid, self-contained fragment for a node in a XML document stored in a database management system. An XML index is used to identify a location in which XML fragment data corresponding to the node is located. Ancestors of the node are identified and examined for any information needed for the proper interpretation of the fragment. If an ancestor node contains such needed information, this information is patched into the XML fragment to ensure that the fragment is a valid, self-contained XML fragment.
摘要翻译： 提供了一种用于提取存储在数据库管理系统中的XML文档中的节点的有效的，独立的片段的方法和系统。 XML索引用于标识与节点对应的XML片段数据所在的位置。 识别和检查节点的祖先，以便适当解释片段所需的任何信息。 如果祖先节点包含这些所需的信息，则将该信息修补到XML片段中，以确保该片段是有效的，独立的XML片段。
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95.发明申请Efficient queribility and manageability of an XML index with path subsetting 有权具有路径子集的XML索引的高效可及性和可管理性公开(公告)号：US20050228791A1
公开(公告)日：2005-10-13
申请号：US11059665
申请日：2005-02-15
申请人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla , Reema Koo
发明人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla , Reema Koo
IPC分类号： G06F7/00
CPC分类号： G06F17/30911 , G06F17/30935 , G06F17/30938 , Y10S707/99932 , Y10S707/99942
摘要： A method and system are provided for determining whether a given path is an indexed path of XML documents stored in a database management system. A finite state machine is built using the path subsetting rules specified by a user. The finite state machine is traversed using the given path. If any accepting states are reached during the traversal of the finite state machine, the given path is determined to matching the path subsetting rules.
摘要翻译： 提供了一种用于确定给定路径是否存储在数据库管理系统中的XML文档的索引路径的方法和系统。 使用用户指定的路径子集规则构建有限状态机。 使用给定的路径遍历有限状态机。 如果在遍历有限状态机期间达到任何接受状态，则确定给定路径以匹配路径子集规则。
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公开(公告)号：US20050050056A1
公开(公告)日：2005-03-03
申请号：US10648497
申请日：2003-08-25
CPC分类号： G06F17/30914 , G06F17/2247 , G06F17/227 , Y10S707/99932 , Y10S707/99943 , Y10S707/99944
摘要： A method and system for evolving XML-schema-based data to conform to an evolved XML schema is disclosed. Based on an existing XML schema and an instance document that is based on the existing XML schema, an XML-schema-independent form of the instance document is generated. Based on a set of specified transformations and the XML-schema-independent form of the instance document, an evolved instance document is generated. The evolved instance document conforms to an evolved XML schema that incorporates changes to the existing XML schema. Techniques described herein are flexible enough to accommodate a wide variety of evolutions to XML schemas.
摘要翻译： 公开了一种用于演进基于XML模式的数据以符合演进的XML模式的方法和系统。 基于现有XML模式和基于现有XML模式的实例文档，生成实例文档的与XML模式无关的形式。 基于一组指定的转换和实例文档的与XML模式无关的形式，生成了演进的实例文档。 演进的实例文档符合演进的XML模式，其中包含对现有XML模式的更改。 本文描述的技术足够灵活，以适应各种演进到XML模式。
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公开(公告)号：US09953103B2
公开(公告)日：2018-04-24
申请号：US11601118
申请日：2006-11-16
CPC分类号： G06F17/30914 , G06F17/2217 , H03M7/30
摘要： Techniques are provided for encoding/decoding binary XML data in a client program before sending/receiving the XML to/from a database server. By encoding the binary XML at the client, the overhead of parsing the XML text is avoided by the database server, thus improving database server scalability. Also, the XML data is sent by the server to the client in the binary form, and the binary format is decoded by the client program to perform the necessary operations.
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公开(公告)号：US09069878B2
公开(公告)日：2015-06-30
申请号：US11246039
申请日：2005-10-07
IPC分类号： G06F17/30
摘要： A database server determines, on an element-level of granularity, what form of VARRAY storage to map collections of elements defined by a XML schema. A collection element may be mapped to an in-line VARRAY or an out-of-line VARRAY. The determination may based on a variety of factors, including the database type mapped to the collection element, database limitations that limit the form storage for certain database types, and annotations (“mapping annotations”) embedded within that XML schema that specifying a database type for database representation of a collection element or a form of VARRAY storage.
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公开(公告)号：US08554789B2
公开(公告)日：2013-10-08
申请号：US11246001
申请日：2005-10-07
CPC分类号： G06F17/2247 , G06F17/30917
摘要： A database system automatically detects a cyclic construct in a XML schema, determines a database representation for the cyclic construct, and maps the XML schema and elements involved in the cyclic construct to the database representation.
摘要翻译： 数据库系统自动检测XML模式中的循环结构，确定循环结构的数据库表示，并将循环结构中涉及的XML模式和元素映射到数据库表示。
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100.发明授权Techniques for more efficient generation of XML events from XML data sources 有权从XML数据源更有效地生成XML事件的技术公开(公告)号：US08543898B2
公开(公告)日：2013-09-24
申请号：US11938020
申请日：2007-11-09
IPC分类号： G06F17/00
CPC分类号： G06F17/272 , G06F17/2247 , G06F17/30938
摘要： One may increase the efficiency of an XML event-generating process by reducing the number of requests to allocate or deallocate system memory. Such reduction may occur as the result of pre-allocating a memory chunk of sufficient size to contain all of the memory buffers required by a particular event-generating process. Instead of allocating new memory chunks for new memory buffers, an application may store any required buffers within the pre-allocated memory chunk. A sufficient memory size may be estimated by performing the event-generating process on a training set of XML documents. Also, an application may re-use buffers during the process or between different iterations of the process, thus avoiding the need to deallocate and reallocate memory that is essentially being used for the same purpose.
摘要翻译： 可以通过减少分配或释放系统内存的请求数来提高XML事件生成过程的效率。 这种减少可以作为预先分配足够大小的存储器块以包含特定事件生成过程所需的所有存储器缓冲器的结果而发生。 代替为新的内存缓冲区分配新的内存块，应用程序可以在预先分配的内存块内存储任何所需的缓冲区。 可以通过对XML文档的训练集执行事件生成过程来估计足够的存储器大小。 此外，应用程序可能会在进程期间或在进程的不同迭代之间重新使用缓冲区，从而避免需要重新分配和重新分配基本上用于相同目的的内存。
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