公开(公告)号：US20140280047A1

公开(公告)日：2014-09-18

申请号：US13828229

申请日：2013-03-14

申请人： MICROSOFT CORPORATION

发明人： Dharma Shukla ,  Madhan Gajendran ,  Quetzalcoatl Bradley ,  Shireesh Kumar Thota ,  Li Zhang ,  Mihai Dan Budiu ,  Yuan Yu

IPC分类号： G06F17/30

CPC分类号： G06F17/30011 ,  G06F17/30321 ,  G06F17/30486 ,  G06F17/30554 ,  G06F17/30964

摘要： Query models for document sets (such as XML documents or records in a relational database) typically involve a schema defining the structure of the documents. However, rigidly defined schemas often raise difficulties with document validation with even inconsequential structural variations. Additionally, queries developed against schema-constrained documents are often sensitive to structural details and variations that are not inconsequential to the query, resulting in inaccurate results and development complications, and that may break upon schema changes. Instead, query models for hierarchically structured documents that enable “twig” queries specifying only the structural details of document nodes that are relevant to the query (e.g., students in a student database having a sibling named “Lee” and a teacher named “Smith,” irrespective of unrelated structural details of the document). Such “twig” query models may enable a more natural query development, and continued accuracy of queries in the event of unrelated schema variations and changes.

摘要翻译： 文档集（如关系数据库中的XML文档或记录）的查询模型通常涉及定义文档结构的模式。 然而，刚性定义的模式通常会导致文档验证的困难，甚至无关紧要的结构变化。 另外，针对模式约束的文档开发的查询通常对结构细节和对查询不重要的变体敏感，导致不准确的结果和开发复杂性，并且可能会破坏模式更改。 相反，用于分层结构化文档的查询模型，使得“twig”查询仅指定与查询相关的文档节点的结构细节（例如，具有名为“Lee”的兄弟姐妹的学生数据库中的学生和名为“Smith”的教师， “不管文件的不相关的结构细节如何）。 这种“twig”查询模型可以实现更自然的查询开发，以及在不相关的模式变化和变化的情况下，查询的持续准确性。

公开(公告)号：US09230040B2

公开(公告)日：2016-01-05

申请号：US13828229

申请日：2013-03-14

申请人： Microsoft Corporation

发明人： Dharma Shukla ,  Madhan Gajendran ,  Quetzalcoatl Bradley ,  Shireesh Kumar Thota ,  Li Zhang ,  Mihai Dan Budiu ,  Yuan Yu

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： G06F17/30011 ,  G06F17/30321 ,  G06F17/30486 ,  G06F17/30554 ,  G06F17/30964

摘要： Query models for document sets (such as XML documents or records in a relational database) typically involve a schema defining the structure of the documents. However, rigidly defined schemas often raise difficulties with document validation with even inconsequential structural variations. Additionally, queries developed against schema-constrained documents are often sensitive to structural details and variations that are not inconsequential to the query, resulting in inaccurate results and development complications, and that may break upon schema changes. Instead, query models for hierarchically structured documents that enable “twig” queries specifying only the structural details of document nodes that are relevant to the query (e.g., students in a student database having a sibling named “Lee” and a teacher named “Smith,” irrespective of unrelated structural details of the document). Such “twig” query models may enable a more natural query development, and continued accuracy of queries in the event of unrelated schema variations and changes.

摘要翻译： 文档集（如关系数据库中的XML文档或记录）的查询模型通常涉及定义文档结构的模式。 然而，刚性定义的模式通常会导致文档验证的困难，甚至无关紧要的结构变化。 另外，针对模式约束的文档开发的查询通常对结构细节和对查询不重要的变体敏感，导致不准确的结果和开发复杂性，并且可能会破坏模式更改。 相反，用于分层结构化文档的查询模型，使得“twig”查询仅指定与查询相关的文档节点的结构细节（例如，具有名为“Lee”的兄弟姐妹的学生数据库中的学生和名为“Smith”的教师， “不管文件的不相关的结构细节如何）。 这种“twig”查询模型可以实现更自然的查询开发，以及在不相关的模式变化和变化的情况下，查询的持续准确性。