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公开(公告)号：US08090731B2
公开(公告)日：2012-01-03
申请号：US12180760
申请日：2008-07-28
申请人： Balasubramanyam Sthanikam , Sivasankaran Chandrasekar , Nipun Agarwal , Sam Idicula , Vijay Medi
发明人： Balasubramanyam Sthanikam , Sivasankaran Chandrasekar , Nipun Agarwal , Sam Idicula , Vijay Medi
IPC分类号： G06F17/30
CPC分类号： G06F17/30569 , G06F17/30908
摘要： Techniques are provided for ensuring lexical fidelity when an XML document is stored in a binary format. Operations, on the XML data, that would cause the loss of lexical fidelity between the original XML document and the binary-encoded version of the XML document are not performed. Such operations include the removal of unnecessary whitespace characters, certain data type conversions, CRLF normalization, the “collapsing” of two-tag empty elements into a single tag empty element, and the replacing of entity references or numeric character references with another value. An XML schema, to which the XML document conforms, may indicate that the XML document is to be stored in a lexical fidelity mode. Additionally, or alternatively, the database statement that (when executed) causes the XML document to be stored in a binary format may so indicate.
摘要翻译： 当XML文档以二进制格式存储时，提供了用于确保词汇保真度的技术。 不会执行对原始XML文档和XML文档的二进制编码版本之间的词法保真度的XML数据的操作。 这样的操作包括删除不必要的空白字符，某些数据类型转换，CRLF归一化，将双标签空元素“折叠”到单个标签空元素中，以及用另一个值替换实体引用或数字字符引用。 XML文档符合的XML模式可以指示XML文档将以词法保真模式存储。 另外或替代地，数据库语句（当被执行时）导致XML文档以二进制格式存储可能如此指示。
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2.发明申请TECHNIQUES FOR EFFICIENT AND SCALABLE PROCESSING OF COMPLEX SETS OF XML SCHEMAS 有权用于XML方案的复杂集合的有效和可扩展处理的技术公开(公告)号：US20110179089A1
公开(公告)日：2011-07-21
申请号：US12689729
申请日：2010-01-19
申请人： Sam Idicula , Asha Tarachandani , Sivasankaran Chandrasekar , Vijay Medi , Ali Tabar , Nipun Agarwal
发明人： Sam Idicula , Asha Tarachandani , Sivasankaran Chandrasekar , Vijay Medi , Ali Tabar , Nipun Agarwal
IPC分类号： G06F17/30
CPC分类号： G06F17/2247 , G06F17/2205 , G06F17/272
摘要： Techniques are described herein for efficient and scalable processing of complex sets of XML schemas. The techniques described herein provide for reducing duplication of schema elements in volatile memory by building an XML schema in-memory model that stores repeating schema elements in in-memory data structures that are separate from in-memory data structures that store the parent schema elements which logically include or otherwise refer to the repeating schema elements. The techniques described herein also provide for faster generation of an in-memory model of an XML schema by pre-loading, in data structures on persistent storage, of schema elements from dependent XML schemas that are referenced and/or incorporated by the XML schema. The techniques described herein also provide for efficient processing of inter-dependent XML schemas by tracking all unresolved schema elements from dependent XML schemas and freeing the portions of volatile memory, which are used to process schema elements from the dependent XML schemas, as soon as the dependent schema elements being processed are stored in data structures on persistent storage.
摘要翻译： 这里描述了用于复杂的XML模式集合的有效和可缩放处理的技术。 本文描述的技术提供了通过构建XML模式内存中模型来减少易失性存储器中的模式元素的重复，该模式将内存模型元素存储在与存储父模式元素的内存中数据结构分开的内存中数据结构中， 逻辑上包括或以其他方式引用重复的模式元素。 本文描述的技术还提供了通过在由XML模式引用和/或并入的依赖XML模式中预先加载在持久存储器上的模式元素的数据结构中来更快地生成XML模式的内存中模型。 本文描述的技术还提供了通过从依赖的XML模式跟踪所有未解决的模式元素并释放用于从依赖的XML模式处理模式元素的易失性存储器的部分的快速处理相互依赖的XML模式，一旦 正在处理的依赖模式元素存储在持久存储器上的数据结构中。
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公开(公告)号：US20090112902A1
公开(公告)日：2009-04-30
申请号：US12180760
申请日：2008-07-28
申请人： Balasubramanyam Sthanikam , Sivasankaran Chandrasekar , Nipun Agarwal , Sam Idicula , Vijay Medi
发明人： Balasubramanyam Sthanikam , Sivasankaran Chandrasekar , Nipun Agarwal , Sam Idicula , Vijay Medi
IPC分类号： G06F17/30
CPC分类号： G06F17/30569 , G06F17/30908
摘要： Techniques are provided for ensuring lexical fidelity when an XML document is stored in a binary format. Operations, on the XML data, that would cause the loss of lexical fidelity between the original XML document and the binary-encoded version of the XML document are not performed. Such operations include the removal of unnecessary whitespace characters, certain data type conversions, CRLF normalization, the “collapsing” of two-tag empty elements into a single tag empty element, and the replacing of entity references or numeric character references with another value. An XML schema, to which the XML document conforms, may indicate that the XML document is to be stored in a lexical fidelity mode. Additionally, or alternatively, the database statement that (when executed) causes the XML document to be stored in a binary format may so indicate.
摘要翻译： 当XML文档以二进制格式存储时，提供了用于确保词汇保真度的技术。 不会执行对原始XML文档和XML文档的二进制编码版本之间的词法保真度的XML数据的操作。 这样的操作包括删除不必要的空白字符，某些数据类型转换，CRLF归一化，将双标签空元素“折叠”到单个标签空元素中，以及用另一个值替换实体引用或数字字符引用。 XML文档符合的XML模式可以指示XML文档将以词法保真模式存储。 另外或替代地，数据库语句（当被执行时）导致XML文档以二进制格式存储可以这样表示。
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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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5.发明授权Techniques for efficient and scalable processing of complex sets of XML schemas 有权用于高效和可扩展处理复杂的XML模式集的技术公开(公告)号：US08209361B2
公开(公告)日：2012-06-26
申请号：US12689729
申请日：2010-01-19
申请人： Sam Idicula , Asha Tarachandani , Sivasankaran Chandrasekar , Vijay Medi , Ali Tabar , Nipun Agarwal
发明人： Sam Idicula , Asha Tarachandani , Sivasankaran Chandrasekar , Vijay Medi , Ali Tabar , Nipun Agarwal
IPC分类号： G06F17/30
CPC分类号： G06F17/2247 , G06F17/2205 , G06F17/272
摘要： Techniques are described herein for efficient and scalable processing of complex sets of XML schemas. The techniques described herein provide for reducing duplication of schema elements in volatile memory by building an XML schema in-memory model that stores repeating schema elements in in-memory data structures that are separate from in-memory data structures that store the parent schema elements which logically include or otherwise refer to the repeating schema elements. The techniques described herein also provide for faster generation of an in-memory model of an XML schema by pre-loading, in data structures on persistent storage, of schema elements from dependent XML schemas that are referenced and/or incorporated by the XML schema. The techniques described herein also provide for efficient processing of inter-dependent XML schemas by tracking all unresolved schema elements from dependent XML schemas and freeing the portions of volatile memory, which are used to process schema elements from the dependent XML schemas, as soon as the dependent schema elements being processed are stored in data structures on persistent storage.
摘要翻译： 这里描述了用于复杂的XML模式集合的有效和可缩放处理的技术。 本文描述的技术提供了通过构建XML模式内存中模型来减少易失性存储器中的模式元素的重复，该模式将内存模型元素存储在与存储父模式元素的内存中数据结构分开的内存中数据结构中， 逻辑上包括或以其他方式引用重复的模式元素。 本文描述的技术还提供了通过在由XML模式引用和/或并入的依赖XML模式中预先加载在持久存储器上的模式元素的数据结构中来更快地生成XML模式的内存中模型。 本文描述的技术还提供了通过从依赖的XML模式跟踪所有未解决的模式元素并释放用于从依赖的XML模式处理模式元素的易失性存储器的部分的快速处理相互依赖的XML模式，一旦 正在处理的依赖模式元素存储在持久存储器上的数据结构中。
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公开(公告)号：US07831540B2
公开(公告)日：2010-11-09
申请号：US11924556
申请日：2007-10-25
CPC分类号： G06F17/30923 , G06F17/30908
摘要： Various techniques are described hereafter for improving the efficiency of updating XML documents in a content repository, such as a database system. Specifically, techniques are described for updating an XML document by dynamically merging a stream of XML data from the document with update information. Techniques are also described for efficient validation of XML documents. Because of the manner of the updates, specifically because the XML data being updated is in the form of a stream, the database system validates only those portions of the stream of XML data that have been updated. In the alternative, the database system validates that portion of the XML data that is associated with the parent node of the portion of XML data that has been updated.
摘要翻译： 以下描述了用于提高在诸如数据库系统的内容存储库中更新XML文档的效率的各种技术。 具体来说，描述了通过动态地将来自文档的XML数据流与更新信息合并来更新XML文档的技术。 还描述了技术来有效验证XML文档。 由于更新的方式，因为正在更新的XML数据是流的形式，所以数据库系统仅验证已经更新的XML数据流的那些部分。 或者，数据库系统验证与已更新的XML数据部分的父节点相关联的部分XML数据。
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公开(公告)号：US20090112890A1
公开(公告)日：2009-04-30
申请号：US11924556
申请日：2007-10-25
IPC分类号： G06F17/30
CPC分类号： G06F17/30923 , G06F17/30908
摘要： Various techniques are described hereafter for improving the efficiency of updating XML documents in a content repository, such as a database system. Specifically, techniques are described for updating an XML document by dynamically merging a stream of XML data from the document with update information. Techniques are also described for efficient validation of XML documents. Because of the manner of the updates, specifically because the XML data being updated is in the form of a stream, the database system validates only those portions of the stream of XML data that have been updated. In the alternative, the database system validates that portion of the XML data that is associated with the parent node of the portion of XML data that has been updated.
摘要翻译： 以下描述了用于提高在诸如数据库系统的内容存储库中更新XML文档的效率的各种技术。 具体来说，描述了通过动态地将来自文档的XML数据流与更新信息合并来更新XML文档的技术。 还描述了技术来有效验证XML文档。 由于更新的方式，因为正在更新的XML数据是流的形式，所以数据库系统仅验证已经更新的XML数据流的那些部分。 或者，数据库系统验证与已更新的XML数据部分的父节点相关联的部分XML数据。
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公开(公告)号：US09667269B2
公开(公告)日：2017-05-30
申请号：US12791337
申请日：2010-06-01
CPC分类号： H03M7/30 , G06F17/30914
摘要： A database server exploits the power of compression and a form of storing relational data referred to as column-major format, to store XML documents in shredded form. The column values that are to be stored for shredded XML documents are separately analyzed for a XML document to determine whether to store a particular column in column-major format or row-major format, and what compression technique to use, if any.
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9.发明授权公开(公告)号：US09367642B2
公开(公告)日：2016-06-14
申请号：US11246039
申请日：2005-10-07
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。 集合元素可以被映射到串联的VARRAY或者行外的VARRAY。 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，限制某些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：US07836098B2
公开(公告)日：2010-11-16
申请号：US11827801
申请日：2007-07-13
CPC分类号： G06F17/30938
摘要： A method and apparatus for accelerating value-based lookups of XML documents in XQuery is provided. XML indices can help to optimize SQL queries of XML documents stored in object-relational databases. Certain SQL/XML functions such as XMLTABLE( ) use XQuery expressions to query XML documents. Previously, such queries could not use the XML index because the PATH table of the XML index was not defined for XQuery semantics. Techniques described herein extend the XML index for use with queries that require evaluation of XQuery expressions. Consequently, techniques described herein accelerate value-based lookups of XML documents in XQuery by introducing the possibility of an index-assisted evaluation of XQuery expressions.
摘要翻译： 提供了一种用于在XQuery中加速基于价值的XML文档查找的方法和装置。 XML索引可以帮助优化存储在对象关系数据库中的XML文档的SQL查询。 某些SQL / XML函数（如XMLTABLE（））使用XQuery表达式来查询XML文档。 以前，这样的查询无法使用XML索引，因为XML索引的PATH表未针对XQuery语义进行定义。 本文中描述的技术扩展了XML索引，以便与需要评估XQuery表达式的查询一起使用。 因此，本文描述的技术通过引入XQuery表达式的索引辅助评估的可能性来加速XQuery中的XML文档的基于值的查找。
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