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1. 发明申请

US20080071812A1 Evolution of XML schemas involving partial data copy 有权
标题翻译：涉及部分数据复制的XML模式的演进
公开(公告)号：US20080071812A1
公开(公告)日：2008-03-20
申请号：US11521907
申请日：2006-09-15
申请人： Thomas Baby , Abhyudaya Agrawal , Sam Idicula , Nipun Agarwal
发明人： Thomas Baby , Abhyudaya Agrawal , Sam Idicula , Nipun Agarwal
IPC分类号： G06F7/00
CPC分类号： G06F17/2288 , G06F17/2211 , G06F17/2229 , G06F17/2247 , G06F17/30297
摘要： XML schema evolutions can be performed on an XML-type database using partial data copy techniques. The partial data copy techniques provide mechanisms to identify a minimal set of data in the database that needs be copied out in order for schema evolution operations to occur. Identifying the minimal set of data involves comparing an existing XML schema to a new XML schema and determining the differences between the two schemas. Based on those differences, a minimal set of data can be determined. That data can then be copied to a temporary storage location, while the XML schema and its associated database structure are updated to conform to the new XML schema. Then, the minimal set of data is copied back into the modified database structure.
摘要翻译：可以使用部分数据复制技术在XML类型数据库上执行XML模式演进。部分数据复制技术提供了识别数据库中需要复制出来以便模式演进操作发生的最小数据集的机制。识别最小数据集涉及将现有XML模式与新的XML模式进行比较，并确定两种架构之间的差异。基于这些差异，可以确定最小的数据集。然后可以将该数据复制到临时存储位置，同时更新XML模式及其关联的数据库结构以符合新的XML模式。然后，将最小数据集复制回修改后的数据库结构。

2. 发明授权

US07870163B2 Implementation of backward compatible XML schema evolution in a relational database system 有权
标题翻译：在关系数据库系统中实现向后兼容的XML模式演进
公开(公告)号：US07870163B2
公开(公告)日：2011-01-11
申请号：US11540341
申请日：2006-09-28
申请人： Abhyudaya Agrawal , Thomas Baby , Nipun Agarwal , Sam Idicula , Ravi Murthy , Eric Sedlar
发明人： Abhyudaya Agrawal , Thomas Baby , Nipun Agarwal , Sam Idicula , Ravi Murthy , Eric Sedlar
IPC分类号： G06F17/30
CPC分类号： G06F17/2247
摘要： In-place XML schema evolution occurs by evaluating an existing XML schema in a database system to see if it is compatible with a new XML schema. To determine if the old schema is compatible with the new schema, a lock-step traversal is performed on the two schemas. Each instruction in the old schema is compared to instructions in the new schema. Detected differences between the two schemas are evaluated to determine if existing XML documents are still compatible with the new schema. If they are, then an in-place schema evolution operation can take place. The in-place schema operation basically, involves appending the updated object information to the underlying object type and preserving the order of elements in a document by storing element mapping information on disk.
摘要翻译：通过评估数据库系统中的现有XML模式来查看是否与新的XML模式兼容，就会发生就地XML模式演进。为了确定旧模式是否与新模式兼容，在两个模式上执行锁步遍历。将旧模式中的每个指令与新模式中的指令进行比较。对两个模式之间的检测差异进行评估，以确定现有XML文档是否仍然与新模式兼容。如果它们是，则可以进行就地模式演进操作。就地模式操作基本上包括将更新的对象信息附加到底层对象类型，并通过在盘上存储元素映射信息来保留文档中元素的顺序。

3. 发明申请

US20080082560A1 Implementation of backward compatible XML schema evolution 有权
标题翻译：实现向后兼容的XML模式演进
公开(公告)号：US20080082560A1
公开(公告)日：2008-04-03
申请号：US11540341
申请日：2006-09-28
申请人： Abhyudaya Agrawal , Thomas Baby , Nipun Agarwal , Sam Idicula , Ravi Murthy , Eric Sedlar
发明人： Abhyudaya Agrawal , Thomas Baby , Nipun Agarwal , Sam Idicula , Ravi Murthy , Eric Sedlar
IPC分类号： G06F7/00
CPC分类号： G06F17/2247
摘要： In-place XML schema evolution occurs by evaluating an existing XML schema in a database system to see if it is compatible with a new XML schema. To determine if the old schema is compatible with the new schema, a lock-step traversal is performed on the two schemas. Each instruction in the old schema is compared to instructions in the new schema. Detected differences between the two schemas are evaluated to determine if existing XML documents are still compatible with the new schema. If they are, then an in-place schema evolution operation can take place. The in-place schema operation basically, involves appending the updated object information to the underlying object type and preserving the order of elements in a document by storing element mapping information on disk.
摘要翻译：通过评估数据库系统中的现有XML模式来查看是否与新的XML模式兼容，就会发生就地XML模式演进。为了确定旧模式是否与新模式兼容，在两个模式上执行锁步遍历。将旧模式中的每个指令与新模式中的指令进行比较。对两个模式之间的检测差异进行评估，以确定现有XML文档是否仍然与新模式兼容。如果它们是，则可以进行就地模式演进操作。就地模式操作基本上包括将更新的对象信息附加到底层对象类型，并通过在盘上存储元素映射信息来保留文档中元素的顺序。

4. 发明授权

US08346725B2 Evolution of XML schemas involving partial data copy 有权
标题翻译：涉及部分数据复制的XML模式的演进
公开(公告)号：US08346725B2
公开(公告)日：2013-01-01
申请号：US11521907
申请日：2006-09-15
申请人： Thomas Baby , Abhyudaya Agrawal , Sam Idicula , Nipun Agarwal
发明人： Thomas Baby , Abhyudaya Agrawal , Sam Idicula , Nipun Agarwal
IPC分类号： G06F7/00
CPC分类号： G06F17/2288 , G06F17/2211 , G06F17/2229 , G06F17/2247 , G06F17/30297
摘要： XML schema evolutions can be performed on an XML-type database using partial data copy techniques. The partial data copy techniques provide mechanisms to identify a minimal set of data in the database that needs be copied out in order for schema evolution operations to occur. Identifying the minimal set of data involves comparing an existing XML schema to a new XML schema and determining the differences between the two schemas. Based on those differences, a minimal set of data can be determined. That data can then be copied to a temporary storage location, while the XML schema and its associated database structure are updated to conform to the new XML schema. Then, the minimal set of data is copied back into the modified database structure.
摘要翻译：可以使用部分数据复制技术在XML类型数据库上执行XML模式演进。部分数据复制技术提供了识别数据库中需要复制出来以便模式演进操作发生的最小数据集的机制。识别最小数据集涉及将现有XML模式与新的XML模式进行比较，并确定两种架构之间的差异。基于这些差异，可以确定最小的数据集。然后可以将该数据复制到临时存储位置，同时更新XML模式及其关联的数据库结构以符合新的XML模式。然后，将最小数据集复制回修改后的数据库结构。

5. 发明授权

US07761479B2 Management of complex XML schemas in a database system 有权
标题翻译：在数据库系统中管理复杂的XML模式
公开(公告)号：US07761479B2
公开(公告)日：2010-07-20
申请号：US11519720
申请日：2006-09-11
申请人： Abhyudaya Agrawal , Thomas Baby , Ravi Murthy , Nipun Agarwal
发明人： Abhyudaya Agrawal , Thomas Baby , Ravi Murthy , Nipun Agarwal
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30917 , Y10S707/954
摘要： Techniques manage the presence of repeated constructs within a complex type at the time of schema registration. At registration, techniques detect repeated elements in the XML schema and analyze whether the repeated elements are from the same complex type. If so, techniques perform additional analysis to determine a minimal common ancestor. Within the context of a minimal common ancestor, techniques determine the maximum number of times an element may occur in the schema. In a choice content model, the largest maximum occurrence value is selected. In other content models, the maximum occurrence value is determined by adding together the occurrence values for the repeated elements. Then, when an object relational table is generated for the XML schema, the maximum number of times that an element appears in the schema is this value. Techniques retain the advantages of object relational storage, even after a schema evolution.
摘要翻译：技术在模式注册时管理复杂类型中重复构造的存在。在注册时，技术会检测XML模式中的重复元素，并分析重复的元素是否来自相同的复杂类型。如果是这样，技术将进行额外的分析，以确定一个最小的共同祖先。在最小共同祖先的上下文中，技术确定元素在模式中可能发生的最大次数。在选择内容模型中，选择最大的最大出现值。在其他内容模型中，通过将重复元素的出现值相加来确定最大出现值。然后，当为XML模式生成对象关系表时，元素在模式中出现的最大次数是此值。技术保留对象关系存储的优点，即使在模式演进之后。

6. 发明申请

US20080065654A1 Management of complex XML schemas in a database system 有权
标题翻译：在数据库系统中管理复杂的XML模式
公开(公告)号：US20080065654A1
公开(公告)日：2008-03-13
申请号：US11519720
申请日：2006-09-11
申请人： Abhyudaya Agrawal , Thomas Baby , Ravi Murthy , Nipun Agarwal
发明人： Abhyudaya Agrawal , Thomas Baby , Ravi Murthy , Nipun Agarwal
IPC分类号： G06F7/00
CPC分类号： G06F17/30917 , Y10S707/954
摘要： Techniques manage the presence of repeated constructs within a complex type at the time of schema registration. At registration, techniques detect repeated elements in the XML schema and analyze whether the repeated elements are from the same complex type. If so, techniques perform additional analysis to determine a minimal common ancestor. Within the context of a minimal common ancestor, techniques determine the maximum number of times an element may occur in the schema. In a choice content model, the largest maximum occurrence value is selected. In other content models, the maximum occurrence value is determined by adding together the occurrence values for the repeated elements. Then, when an object relational table is generated for the XML schema, the maximum number of times that an element appears in the schema is this value. Techniques retain the advantages of object relational storage, even after a schema evolution.
摘要翻译：技术在模式注册时管理复杂类型中重复构造的存在。在注册时，技术会检测XML模式中的重复元素，并分析重复的元素是否来自相同的复杂类型。如果是这样，技术将进行额外的分析，以确定一个最小的共同祖先。在最小共同祖先的上下文中，技术确定元素在模式中可能发生的最大次数。在选择内容模型中，选择最大的最大出现值。在其他内容模型中，通过将重复元素的出现值相加来确定最大出现值。然后，当为XML模式生成对象关系表时，元素在模式中出现的最大次数是此值。技术保留对象关系存储的优点，即使在模式演进之后。

7. 发明授权

US07472140B2 Label-aware index for efficient queries in a versioning system 有权
标题翻译：标签感知索引，用于版本控制系统中的高效查询
公开(公告)号：US07472140B2
公开(公告)日：2008-12-30
申请号：US11313526
申请日：2005-12-20
申请人： Nipun Agarwal , Sam Idicula , Thomas Baby , Eric Sedlar
发明人： Nipun Agarwal , Sam Idicula , Thomas Baby , Eric Sedlar
IPC分类号： G06F17/30
CPC分类号： G06F17/30625 , Y10S707/99931 , Y10S707/99932 , Y10S707/99933 , Y10S707/99942 , Y10S707/99954
摘要： A mechanism for querying a label-aware index in the context of versioning is provided. The key of the label-aware index is a composite key and includes a unique label identifier, corresponding to a specific label, and the key of the original index, which key itself may be a composite key. The label-aware index may be implemented as an index-organized table. The label-aware index is organized on disk first by the label identifier and then by the original index key so that queries of versions of resources within a particular label are as efficient as queries on an index of an unversioned repository with the same number of resources.
摘要翻译：提供了一种用于在版本控制的上下文中查询标签感知索引的机制。标签感知索引的密钥是复合密钥，并且包括对应于特定标签的唯一标签标识符和原始索引的密钥，该密钥本身可以是复合密钥。标签感知索引可以被实现为索引组织表。标签感知索引首先由标签标识符组织，然后由原始索引键组织，以便特定标签内的资源版本的查询与具有相同数量资源的未版本化存储库的索引上的查询一样有效。

8. 发明申请

US20070208946A1 High performance secure caching in the mid-tier 审中-公开
标题翻译：中层高性能安全缓存
公开(公告)号：US20070208946A1
公开(公告)日：2007-09-06
申请号：US11359236
申请日：2006-02-21
申请人： Thomas Baby , Asha Tarachandani , Naveen Zalpuri , Sam Idicula , Nipun Agarwal , Gary Ling , Ravi Murthy , Fredric Goell , Eric Sedlar
发明人： Thomas Baby , Asha Tarachandani , Naveen Zalpuri , Sam Idicula , Nipun Agarwal , Gary Ling , Ravi Murthy , Fredric Goell , Eric Sedlar
IPC分类号： H04L9/00
CPC分类号： H04L63/101 , G06F12/0813 , G06F12/0875 , G06F21/6218 , G06F2221/2141 , H04L63/20 , H04L67/14 , H04L67/142 , H04L67/145 , H04L67/28 , H04L67/2819 , H04L67/2842
摘要： In a multi-tier data server system, data from the first tier is cached in a mid-tier cache of the middle tier. Access control information from the first tier for the data is also cached within the mid-tier cache. Caching the security information in the middle tier allows the middle tier to make access control decisions regarding requests for data made by clients in the outer tier.
摘要翻译：在多层数据服务器系统中，来自第一层的数据被缓存在中间层的中间层缓存中。来自数据的第一层的访问控制信息也缓存在中间层缓存中。缓存中间层的安全信息允许中间层对外层客户端的数据请求进行访问控制决策。

9. 发明申请

US20070156687A1 Efficient implementation of multiple work areas in a file system like repository that supports file versioning 有权
标题翻译：在文件系统（如支持文件版本控制的存储库）中有效实施多个工作区域
公开(公告)号：US20070156687A1
公开(公告)日：2007-07-05
申请号：US11316777
申请日：2005-12-22
申请人： Sam Idicula , Thomas Baby , Vikram Kapoor , Nipun Agarwal , Eric Sedlar
发明人： Sam Idicula , Thomas Baby , Vikram Kapoor , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F17/30
CPC分类号： G06F17/3023 , G06F8/71 , Y10S707/99938 , Y10S707/99954
摘要： A shared workspace is associated with a group of users who share the workspace, which isolates a set of shared resources from other resources stored in a repository that supports versioning of resources. The content of a shared workspace is maintained using a set of shared references, to the set of resources associated with the shared workspace. A virtual workspace is created for a user by generating a personal mapping for the user, where the personal mapping indicates which resources from the set of shared resources the user has made personal, e.g., by checking out such resources from the repository. If the user submits a query on the repository, the particular version of each resource involved in the query is readily determinable from the shared workspace and the user's virtual workspace.
摘要翻译：共享工作区与共享工作空间的一组用户相关联，该组将共享资源与存储在支持资源版本控制的存储库中的其他资源隔离。使用一组共享引用来维护共享工作空间的内容到与共享工作空间相关联的一组资源。通过为用户生成个人映射来为用户创建虚拟工作空间，其中个人映射指示用户已经做出个人的共享资源集合中的哪些资源，例如通过从存储库检出这些资源。如果用户在存储库中提交查询，则可以从共享工作空间和用户的虚拟工作区轻松确定查询中涉及的每个资源的特定版本。

10. 发明申请

US20070043783A1 Handling uniqueness constraints in a database system with versioned data 有权
标题翻译：在具有版本化数据的数据库系统中处理唯一性约束
公开(公告)号：US20070043783A1
公开(公告)日：2007-02-22
申请号：US11295310
申请日：2005-12-05
申请人： Sam Idicula , Nipun Agarwal , Ravi Murthy , Thomas Baby
发明人： Sam Idicula , Nipun Agarwal , Ravi Murthy , Thomas Baby
IPC分类号： G06F17/30
CPC分类号： G06F17/30312 , Y10S707/99953 , Y10S707/99954
摘要： A version history of each of a plurality of resources is stored in a table. The version history for each resource comprises a set of one or more values for the resource, wherein each value in the version history of a resource indicates the value that the resource had in a particular version of the resource. In response to a request to perform an operation that causes a given resource that is subject to a uniqueness constraint to have a particular value, it is determined whether the uniqueness constraint is violated based on whether any version of any resource other than the given resource has the particular value. The uniqueness constraint is determined to be violated if any version of any resource other than the given resource has the particular value. The uniqueness constraint is not violated by existence of a version of the given resource that has the particular value.
摘要翻译：多个资源中的每一个的版本历史被存储在表中。每个资源的版本历史包括用于资源的一个或多个值的集合，其中资源的版本历史中的每个值指示资源在资源的特定版本中具有的值。响应于执行导致受到唯一性约束的给定资源具有特定值的操作的请求，基于是否具有给定资源的任何资源的任何版本的任何版本是否被确定是否违反唯一性约束具体的价值。如果给定资源以外的任何资源的任何版本具有特定值，则唯一性约束被确定为违反。唯一性约束不被存在具有特定值的给定资源的版本所抵触。

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