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1. 发明申请

US20050091255A1 System and method for storing and retrieving a field of a user defined type outside of a database store in which the type is defined 有权
公开(公告)号：US20050091255A1
公开(公告)日：2005-04-28
申请号：US10692227
申请日：2003-10-23
申请人： Rajeev Rajan , Balan Raman , Kangrong Yan
发明人： Rajeev Rajan , Balan Raman , Kangrong Yan
IPC分类号： G06F7/00 , G06F17/00 , G06F17/30
CPC分类号： G06F17/30286 , G06F17/30607 , Y10S707/99932 , Y10S707/99934 , Y10S707/99939 , Y10S707/99943 , Y10S707/99944 , Y10S707/99953
摘要： A type of an object that can be persisted in a database store is defined by a user. The type definition comprises fields and behaviors, each field having a respective data type. One or more fields of the type definition may be designated as containing data of a type that is to be stored as a file outside of the database store and separately from the other fields of the type definition. When a request is received to store an object that is an instance of the user defined type, the data in any so designated field of the object is stored in a file outside of the database store, preferably within a file system of the computer on which the database store is implemented. The data in each of the other fields of the object is stored within the database store in the usual manner. The database store maintains a link, or reference, between the persisted object and the data of the field that is stored as a file outside of the database store. Applications are provided “out of band” access, via the file system of the computer, to the file in which the data of given field is stored outside the database store.

2. 发明申请

US20080010285A1 SYSTEM AND METHOD FOR STORING AND RETRIEVING A FIELD OF A USER DEFINED TYPE OUTSIDE OF A DATABASE STORE IN WHICH THE TYPE IS DEFINED 有权
标题翻译：用于存储和检索类型定义的数据库存储区域之外的用户定义类型的区域的系统和方法
公开(公告)号：US20080010285A1
公开(公告)日：2008-01-10
申请号：US11861391
申请日：2007-09-26
申请人： Rajeev Rajan , Balan Raman , Kangrong Yan
发明人： Rajeev Rajan , Balan Raman , Kangrong Yan
IPC分类号： G06F17/30 , G06F17/00
CPC分类号： G06F17/30286 , G06F17/30607 , Y10S707/99932 , Y10S707/99934 , Y10S707/99939 , Y10S707/99943 , Y10S707/99944 , Y10S707/99953
摘要： In a database system that supports user-defined types, one or more fields of a user-defined type may be designated as containing data that is to be stored as a file outside of a database store, separate from the other fields of the type which are stored within the database. Instead of being stored within the database, the data in such a designated field of an instance of the user-defined type is stored as a file within the file system of a computer. Applications are provided “out of band” access, via the file system of the computer, to the file in which the data of such a field is stored outside the database store. A component of the system intercepts file system open requests and checks security against the database store before allowing the open request to proceed. The component also notifies the database when file system close requests are received.
摘要翻译：在支持用户定义类型的数据库系统中，可以将用户定义类型的一个或多个字段指定为包含要作为文件存储在数据库存储之外的数据，该数据库与其他类型的字段分开，存储在数据库中。代替存储在数据库中，用户定义类型的实例的这种指定字段中的数据作为文件存储在计算机的文件系统内。通过计算机的文件系统将应用程序“带外”访问提供到数据库存储之外的这种字段的数据的文件。系统的一个组件在允许开放请求继续之前拦截文件系统打开请求并检查数据库存储的安全性。当接收到文件系统关闭请求时，组件还通知数据库。

3. 发明申请

US20060253502A1 Maintenance of link level consistency between database and file system 有权
标题翻译：维护数据库和文件系统之间的链路级一致性
公开(公告)号：US20060253502A1
公开(公告)日：2006-11-09
申请号：US11123563
申请日：2005-05-06
申请人： Balan Raman , Kangrong Yan , Rajeev Rajan
发明人： Balan Raman , Kangrong Yan , Rajeev Rajan
IPC分类号： G06F17/30
CPC分类号： G06F17/30008
摘要： Methods and computer-readable media for maintaining transactional link-level consistency between a database and a file system. A file system change is logged in a record of a database log and a file corresponding to the file system change is created in a file system folder. During a restart recovery process, an analysis operation and a conditional redo operation are performed based on the database log, and a conditional redo operation and an undo operation are performed based on the files in the file system folder. An undo operation is then performed based on the database log.
摘要翻译：用于维护数据库和文件系统之间的事务链路级一致性的方法和计算机可读介质。文件系统更改记录在数据库日志的记录中，文件系统文件夹中创建与文件系统更改对应的文件。在重新启动恢复过程中，基于数据库日志执行分析操作和条件重做操作，并且基于文件系统文件夹中的文件执行条件重做操作和撤销操作。然后基于数据库日志执行撤消操作。

4. 发明申请

US20050203950A1 System and method for storing and retrieving a field of a user defined type outside of a database store in which the type is defined 有权
标题翻译：用于存储和检索在定义类型的数据库存储之外的用户定义类型的字段的系统和方法
公开(公告)号：US20050203950A1
公开(公告)日：2005-09-15
申请号：US11121882
申请日：2005-05-04
申请人： Rajeev Rajan , Balan Raman , Kangrong Yan
发明人： Rajeev Rajan , Balan Raman , Kangrong Yan
IPC分类号： G06F7/00 , G06F17/00 , G06F17/30
CPC分类号： G06F17/30286 , G06F17/30607 , Y10S707/99932 , Y10S707/99934 , Y10S707/99939 , Y10S707/99943 , Y10S707/99944 , Y10S707/99953
摘要： A type of an object that can be persisted in a database store is defined by a user. The type definition comprises fields and behaviors, each field having a respective data type. One or more fields of the type definition may be designated as containing data of a type that is to be stored as a file outside of the database store and separately from the other fields of the type definition. When a request is received to store an object that is an instance of the user defined type, the data in any so designated field of the object is stored in a file outside of the database store, preferably within a file system of the computer on which the database store is implemented. The data in each of the other fields of the object is stored within the database store in the usual manner. The database store maintains a link, or reference, between the persisted object and the data of the field that is stored as a file outside of the database store. Applications are provided “out of band” access, via the file system of the computer, to the file in which the data of given field is stored outside the database store.
摘要翻译：可以在数据库存储中保存的对象的类型由用户定义。类型定义包括字段和行为，每个字段具有相应的数据类型。类型定义的一个或多个字段可以被指定为包含要作为数据库存储之外的文件存储的类型的数据，并且与类型定义的其他字段分开。当接收到用于存储作为用户定义类型的实例的对象的请求时，对象的任何这样指定的字段中的数据被存储在数据库存储之外的文件中，优选地在计算机的文件系统内实现数据库存储。对象的每个其他字段中的数据以通常的方式存储在数据库存储中。数据库存储在持久对象和作为数据库存储之外的文件存储的字段的数据之间维护一个链接或引用。通过计算机的文件系统将应用程序“带外”访问提供给数据库存储之外的给定字段数据的文件。

5. 发明授权

US07395278B2 Transaction consistent copy-on-write database 有权
标题翻译：事务一致的写时复制数据库
公开(公告)号：US07395278B2
公开(公告)日：2008-07-01
申请号：US10611774
申请日：2003-06-30
申请人： Michael J. Zwilling , Lewis S. Bruck , Sameet H. Agarwal , Kangrong Yan
发明人： Michael J. Zwilling , Lewis S. Bruck , Sameet H. Agarwal , Kangrong Yan
IPC分类号： G06F12/00 , G06F9/34
CPC分类号： G06F17/30595 , G06F11/1451 , G06F17/30492 , G06F17/30551 , G06F2201/80 , Y10S707/99952 , Y10S707/99953
摘要： A database view of a database is created which provides a transaction-consistent view of an existing database at a previous time. Each database view contains all the information needed to, along with the primary database, determine the contents of the primary database at a previous time. The database view consists of a side file corresponding to each data file in the primary database. The side files contain a copy of all data from the corresponding data file which has been changed since the database view was created. Sparse files may be used for the side files in order to conserve space. Page table data is kept in order to allow a quick determination as to whether the page from the primary database has been modified and the old version stored in the database view side file.
摘要翻译：创建数据库的数据库视图，该数据库视图在以前的时间提供了现有数据库的事务一致视图。每个数据库视图包含与主数据库一起确定先前时间的主数据库的内容所需的所有信息。数据库视图包含与主数据库中每个数据文件对应的副文件。副文件包含自创建数据库视图以来已更改的相应数据文件的所有数据的副本。为了节省空间，稀疏文件可能用于侧面文件。保留页表数据以便快速确定来自主数据库的页面是否已被修改，并且旧版本存储在数据库视图侧文件中。

6. 发明授权

US08145686B2 Maintenance of link level consistency between database and file system 有权
标题翻译：维护数据库和文件系统之间的链路级一致性
公开(公告)号：US08145686B2
公开(公告)日：2012-03-27
申请号：US11123563
申请日：2005-05-06
申请人： Balan Sethu Raman , Kangrong Yan , Rajeev B. Rajan
发明人： Balan Sethu Raman , Kangrong Yan , Rajeev B. Rajan
IPC分类号： G06F12/00 , G06F17/30
CPC分类号： G06F17/30008
摘要： Methods and computer-readable media for maintaining transactional link-level consistency between a database and a file system. A file system change is logged in a record of a database log and a file corresponding to the file system change is created in a file system folder. During a restart recovery process, an analysis operation and a conditional redo operation are performed based on the database log, and a conditional redo operation and an undo operation are performed based on the files in the file system folder. An undo operation is then performed based on the database log.
摘要翻译：用于维护数据库和文件系统之间的事务链路级一致性的方法和计算机可读介质。文件系统更改记录在数据库日志的记录中，文件系统文件夹中创建与文件系统更改对应的文件。在重新启动恢复过程中，基于数据库日志执行分析操作和条件重做操作，并且基于文件系统文件夹中的文件执行条件重做操作和撤销操作。然后基于数据库日志执行撤消操作。

7. 发明授权

US07287039B2 System and method for storing and retrieving a field of a user defined type outside of a database store in which the type is defined 有权
标题翻译：用于存储和检索在定义类型的数据库存储之外的用户定义类型的字段的系统和方法
公开(公告)号：US07287039B2
公开(公告)日：2007-10-23
申请号：US11121882
申请日：2005-05-04
申请人： Rajeev B. Rajan , Balan Sethu Raman , Kangrong Yan
发明人： Rajeev B. Rajan , Balan Sethu Raman , Kangrong Yan
IPC分类号： G06F17/00
CPC分类号： G06F17/30286 , G06F17/30607 , Y10S707/99932 , Y10S707/99934 , Y10S707/99939 , Y10S707/99943 , Y10S707/99944 , Y10S707/99953
摘要： A type of an object that can be persisted in a database store is defined by a user. The type definition comprises fields and behaviors, each field having a respective data type. One or more fields of the type definition may be designated as containing data of a type that is to be stored as a file outside of the database store and separately from the other fields of the type definition. When a request is received to store an object that is an instance of the user defined type, the data in any so designated field of the object is stored in a file outside of the database store, preferably within a file system of the computer on which the database store is implemented. The data in each of the other fields of the object is stored within the database store in the usual manner. The database store maintains a link, or reference, between the persisted object and the data of the field that is stored as a file outside of the database store. Applications are provided “out of band” access, via the file system of the computer, to the file in which the data of given field is stored outside the database store.
摘要翻译：可以在数据库存储中保存的对象的类型由用户定义。类型定义包括字段和行为，每个字段具有相应的数据类型。类型定义的一个或多个字段可以被指定为包含要作为数据库存储之外的文件存储的类型的数据，并且与类型定义的其他字段分开。当接收到用于存储作为用户定义类型的实例的对象的请求时，对象的任何这样指定的字段中的数据被存储在数据库存储之外的文件中，优选地在计算机的文件系统内实现数据库存储。对象的每个其他字段中的数据以通常的方式存储在数据库存储中。数据库存储在持久对象和作为数据库存储之外的文件存储的字段的数据之间维护一个链接或引用。通过计算机的文件系统将应用程序“带外”访问提供给数据库存储之外的给定字段数据的文件。

8. 发明授权

US07284010B2 System and method for storing and retrieving a field of a user defined type outside of a database store in which the type is defined 有权
公开(公告)号：US07284010B2
公开(公告)日：2007-10-16
申请号：US10692227
申请日：2003-10-23
申请人： Rajeev B. Rajan , Balan Sethu Raman , Kangrong Yan
发明人： Rajeev B. Rajan , Balan Sethu Raman , Kangrong Yan
IPC分类号： G06F17/00
CPC分类号： G06F17/30286 , G06F17/30607 , Y10S707/99932 , Y10S707/99934 , Y10S707/99939 , Y10S707/99943 , Y10S707/99944 , Y10S707/99953
摘要： A type of an object that can be persisted in a database store is defined by a user. The type definition comprises fields and behaviors, each field having a respective data type. One or more fields of the type definition may be designated as containing data of a type that is to be stored as a file outside of the database store and separately from the other fields of the type definition. When a request is received to store an object that is an instance of the user defined type, the data in any so designated field of the object is stored in a file outside of the database store, preferably within a file system of the computer on which the database store is implemented. The data in each of the other fields of the object is stored within the database store in the usual manner. The database store maintains a link, or reference, between the persisted object and the data of the field that is stored as a file outside of the database store. Applications are provided “out of band” access, via the file system of the computer, to the file in which the data of given field is stored outside the database store.

9. 发明授权

US07765239B2 System and method for storing and retrieving a field of a user defined type outside of a database store in which the type is defined 有权
标题翻译：用于存储和检索在定义类型的数据库存储之外的用户定义类型的字段的系统和方法
公开(公告)号：US07765239B2
公开(公告)日：2010-07-27
申请号：US11861391
申请日：2007-09-26
申请人： Rajeev B. Rajan , Balan Sethu Raman , Kangrong Yan
发明人： Rajeev B. Rajan , Balan Sethu Raman , Kangrong Yan
IPC分类号： G06F17/30
CPC分类号： G06F17/30286 , G06F17/30607 , Y10S707/99932 , Y10S707/99934 , Y10S707/99939 , Y10S707/99943 , Y10S707/99944 , Y10S707/99953
摘要： In a database system that supports user-defined types, one or more fields of a user-defined type may be designated as containing data that is to be stored as a file outside of a database store, separate from the other fields of the type which are stored within the database. Instead of being stored within the database, the data in such a designated field of an instance of the user-defined type is stored as a file within the file system of a computer. Applications are provided “out of band” access, via the file system of the computer, to the file in which the data of such a field is stored outside the database store. A component of the system intercepts file system open requests and checks security against the database store before allowing the open request to proceed. The component also notifies the database when file system close requests are received.
摘要翻译：在支持用户定义类型的数据库系统中，可以将用户定义类型的一个或多个字段指定为包含要作为文件存储在数据库存储之外的数据，该数据库与其他类型的字段分开，存储在数据库中。代替存储在数据库中，用户定义类型的实例的这种指定字段中的数据作为文件存储在计算机的文件系统内。通过计算机的文件系统将应用程序“带外”访问提供到数据库存储之外的这种字段的数据的文件。系统的一个组件在允许开放请求继续之前拦截文件系统打开请求并检查数据库存储的安全性。当接收到文件系统关闭请求时，组件还通知数据库。

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