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1. 发明授权

US06961729B1 Processing in parallel units of work that perform DML operations on the same spanning rows 有权
标题翻译：在并行的工作单元中处理在相同跨度行上执行DML操作
公开(公告)号：US06961729B1
公开(公告)日：2005-11-01
申请号：US09771292
申请日：2001-01-25
申请人： Rosanne Park Toohey , Jonathan D. Klein , Amit Ganesh , Gary C. Ngai , Dmitry Mikhailovich Potapov
发明人： Rosanne Park Toohey , Jonathan D. Klein , Amit Ganesh , Gary C. Ngai , Dmitry Mikhailovich Potapov
IPC分类号： G06F17/30
CPC分类号： G06F17/30445 , Y10S707/99942 , Y10S707/99944
摘要： A mechanism is described for constructing work granules, where the work granules are constructed independently of whether two or more of the work granules are assigned to operate on a logical storage unit that contains a portion of the same row. A database system maintains transaction control data for data blocks in a manner that avoids self-deadlocks for slaves that follow a row collision protocol. A row collision protocol is a set of rules or steps that slaves follow to ensure that only one subtransaction in a distributed transaction updates a spanning row. Thus, for a particular spanning row, a single subtransaction modifies all the row pieces of the spanning row in any data block containing any row pieces of the spanning row. Consequently, a given data block may be affected by multiple subtransactions in a distributed transaction, one subtransaction affecting a row piece in the data block, another subtransaction affecting other rows in the data block.
摘要翻译：描述了用于构造工作颗粒的机构，其中工作颗粒被构造为独立于是否分配两个或更多个工作颗粒以在包含相同行的一部分的逻辑存储单元上操作。数据库系统以避免针对跟随行冲突协议的从站的自死锁的方式维护数据块的事务控制数据。行冲突协议是一组随后遵循的规则或步骤，以确保分布式事务中只有一个子事务更新跨越行。因此，对于特定的跨越行，单个子迁移修改包含跨越行的任何行的任何数据块中的跨越行的所有行。因此，给定的数据块可能受到分布式事务中的多个子事务的影响，影响数据块中的行块的一个子事务处理，影响数据块中的其他行的另一个子事务处理。

2. 发明授权

US07571173B2 Cross-platform transportable database 有权
标题翻译：跨平台可移植数据库
公开(公告)号：US07571173B2
公开(公告)日：2009-08-04
申请号：US10966961
申请日：2004-10-15
申请人： Wanli Yang , Bipul Sinha , Amit Ganesh , Wei Hu , Alok Pareek , Alexander H. Hwang , Steven Charles Wertheimer , Francisco M. Sanchez , Dmitry Mikhailovich Potapov , Shen-Ban Meng , Juan R. Loaiza , William H. Bridge , J. William Lee
发明人： Wanli Yang , Bipul Sinha , Amit Ganesh , Wei Hu , Alok Pareek , Alexander H. Hwang , Steven Charles Wertheimer , Francisco M. Sanchez , Dmitry Mikhailovich Potapov , Shen-Ban Meng , Juan R. Loaiza , William H. Bridge , J. William Lee
IPC分类号： G06F7/00
CPC分类号： G06F17/30569 , Y10S707/99942
摘要： A method and apparatus for creating a target database on a target platform based on a source database on a source platform is provided. A target database is created on the target platform based on data, metadata (for example, data in the system tablespace and control files), and external objects (for example, password files and externally stored tables) comprised within the source database. Data and metadata stored in tablespaces of the source database are converted to the format compatible with the target platform. The conversion of the data and metadata may be performed either at the source database or the target database. Redo information and undo information of the source database are not copied from the source database to the target database. Certain files, e.g., a password files, and links to externally stored object may be recreated on the target database.
摘要翻译：提供了一种用于在源平台上基于源数据库在目标平台上创建目标数据库的方法和装置。基于源数据库中包含的数据，元数据（例如，系统表空间和控制文件中的数据）以及外部对象（例如，密码文件和外部存储的表），在目标平台上创建目标数据库。存储在源数据库的表空间中的数据和元数据将转换为与目标平台兼容的格式。可以在源数据库或目标数据库执行数据和元数据的转换。源数据库的重做信息和撤消信息不会从源数据库复制到目标数据库。可以在目标数据库上重新创建某些文件，例如密码文件和到外部存储对象的链接。

3. 发明申请

US20130275402A1 Redistributing Computation Work Between Data Producers And Data Consumers 有权
标题翻译：在数据生产者和数据消费者之间重新分配计算工作
公开(公告)号：US20130275402A1
公开(公告)日：2013-10-17
申请号：US13449192
申请日：2012-04-17
申请人： Johnny Quan Zhou , Nilesh Choudhury , Juan R. Loaiza , Dmitry Mikhailovich Potapov , Alexander Tsukerman , Kothanda Umamageswaran
发明人： Johnny Quan Zhou , Nilesh Choudhury , Juan R. Loaiza , Dmitry Mikhailovich Potapov , Alexander Tsukerman , Kothanda Umamageswaran
IPC分类号： G06F17/30 , G06F15/173
CPC分类号： G06F17/30492 , G06F17/3048
摘要： In a consumer-producer distributed model of computing, consumers request data from producers and perform computing work on the data received from the producers, thereby transforming the data. At least some of the computing work performed by a consumer on data provided by the producer is commutable between the consumer and producer, that is, either the producer as well as the consumer can perform the computing work on the data. A producer redistributes commutable based on the work load of the producer and consumer as well as other factors.
摘要翻译：在消费者生产者分布式计算模式中，消费者从生产者那里请求数据，并对从生产者接收的数据执行计算工作，从而转换数据。消费者对生产者提供的数据执行的至少一些计算工作在消费者和生产者之间是可交换的，也就是说，生产者以及消费者可以对数据执行计算工作。生产者根据生产者和消费者的工作量以及其他因素重新分配可交换的生产者和消费者。

4. 发明授权

US08935227B2 Redistributing computation work between data producers and data consumers 有权
标题翻译：在数据生成器和数据消费者之间重新分配计算工作
公开(公告)号：US08935227B2
公开(公告)日：2015-01-13
申请号：US13449192
申请日：2012-04-17
申请人： Johnny Quan Zhou , Nilesh Choudhury , Juan R. Loaiza , Dmitry Mikhailovich Potapov , Alexander Tsukerman , Kothanda Umamageswaran
发明人： Johnny Quan Zhou , Nilesh Choudhury , Juan R. Loaiza , Dmitry Mikhailovich Potapov , Alexander Tsukerman , Kothanda Umamageswaran
IPC分类号： G06F17/30
CPC分类号： G06F17/30492 , G06F17/3048
摘要： In a consumer-producer distributed model of computing, consumers request data from producers and perform computing work on the data received from the producers, thereby transforming the data. At least some of the computing work performed by a consumer on data provided by the producer is commutable between the consumer and producer, that is, either the producer as well as the consumer can perform the computing work on the data. A producer redistributes commutable based on the work load of the producer and consumer as well as other factors.
摘要翻译：在消费者生产者分布式计算模式中，消费者从生产者那里请求数据，并对从生产者接收的数据执行计算工作，从而转换数据。消费者对生产者提供的数据执行的至少一些计算工作在消费者和生产者之间是可交换的，也就是说，生产者以及消费者可以对数据执行计算工作。生产者根据生产者和消费者的工作量以及其他因素重新分配可交换的生产者和消费者。

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