Mechanisms for storing content and properties of hierarchically organized resources
    1.
    发明授权
    Mechanisms for storing content and properties of hierarchically organized resources 有权
    存储层次组织资源的内容和属性的机制

    公开(公告)号:US07047253B1

    公开(公告)日:2006-05-16

    申请号:US10256524

    申请日:2002-09-27

    IPC分类号: G06R17/30

    摘要: Various techniques are provided for facilitating the management of hierarchical data within a relational database system. One such technique involves separating the storage structures used to store data that captures the information about the hierarchy (the “hierarchy structures”), from the storage structures used to store the content of the resources that belong to the hierarchy (the “content structures”). Techniques are also provided for allowing users to customize the metadata attributes associated with resources that belong to the information hierarchy. One technique involves registering XML schemas that specify the metadata attributes desired by a user. Another technique involves storing attributes that do not correspond to any declared field in a “catch-all” column within the resource table. Techniques are provided for determining how to store resources as they are added to the database. According to one technique, the database server searches the data of the resource to find content-type information. If content-type information is found, then the database server consults a content-type to content-structure mapping to determine where to store the content of the resource.

    摘要翻译: 提供了各种技术以便于关系数据库系统内的分级数据的管理。 一种这样的技术包括从用于存储属于层级的资源的内容的存储结构(“内容结构”)中分离用于存储捕获关于层级的信息的数据的存储结构(“层次结构”)。 )。 还提供了技术来允许用户定制与属于信息层级的资源相关联的元数据属性。 一种技术涉及注册指定用户所期望的元数据属性的XML模式。 另一种技术涉及存储与资源表中“catch-all”列中任何声明字段不相对应的属性。 提供了技术来确定如何在将资源添加到数据库时存储资源。 根据一种技术,数据库服务器搜索资源的数据以查找内容类型信息。 如果找到内容类型信息,则数据库服务器将查询内容类型到内容 - 结构映射,以确定在哪里存储资源的内容。

    Mechanism to efficiently index structured data that provides hierarchical access in a relational database system
    2.
    发明授权
    Mechanism to efficiently index structured data that provides hierarchical access in a relational database system 有权
    在关系数据库系统中有效地索引提供分层访问的结构化数据的机制

    公开(公告)号:US07366708B2

    公开(公告)日:2008-04-29

    申请号:US10260381

    申请日:2002-09-27

    IPC分类号: G06F7/00 G06F17/30

    摘要: Described is a hierarchical index that captures the hierarchical relationship of a hierarchy emulated by a relational database system. The hierarchical index is implemented, using a database table which contains rows that serve as entries of the hierarchical index. Another table has rows that are associated with nodes in the hierarchy. Each entry in the hierarchal index maps to a row that corresponds to a node in the hierarchy. A node in the hierarchy may be a parent node with one or more child nodes. In this case, the corresponding entry in the hierarchical index contains identifiers which identify other entries in the index, where the other entries correspond to rows associated with child nodes of the parent node.

    摘要翻译: 描述了一种层次索引,其捕获由关系数据库系统模拟的层次结构的层次关系。 使用包含用作层次索引条目的行的数据库表来实现层次索引。 另一个表具有与层次结构中的节点相关联的行。 层级索引中的每个条目映射到与层次结构中的节点对应的行。 层次结构中的节点可以是具有一个或多个子节点的父节点。 在这种情况下,分层索引中的相应条目包含标识索引中的其他条目的标识符,其中条目对应于与父节点的子节点相关联的行。

    Techniques for changing XML content in a relational database
    3.
    发明授权
    Techniques for changing XML content in a relational database 有权
    在关系数据库中更改XML内容的技术

    公开(公告)号:US07386567B2

    公开(公告)日:2008-06-10

    申请号:US10956300

    申请日:2004-09-30

    IPC分类号: G06F17/30

    摘要: Techniques are provided for changing data for an XML construct in an SQL/XML compliant database management system (DBMS). The DBMS allows instances of XML type to represent XML constructs, such as XML documents, XML elements, XML attributes, and fragments of XML documents. An SQL statement is received that includes an XML operator that operates on a particular component in an instance of XML type. During execution of the SQL statement, the XML operator is evaluated by modifying content for the component without modifying the entire instance. For example, an XML delete operator deletes the particular component from the instance. Other XML operators include an insert operator, an insert-before operator, an append-child operator, and an update operator. During execution, these operators may be rewritten to operate on existing SQL constructs, or evaluated by updating only some of the existing SQL constructs, or both.

    摘要翻译: 提供技术用于在符合SQL / XML的数据库管理系统(DBMS)中更改XML构造的数据。 DBMS允许XML类型的实例表示XML构造,例如XML文档,XML元素,XML属性和XML文档片段。 收到一条SQL语句,其中包含一个在XML类型的实例中对特定组件进行操作的XML运算符。 在执行SQL语句期间,通过修改组件的内容而不修改整个实例来评估XML运算符。 例如,XML删除运算符从实例中删除特定组件。 其他XML运算符包括一个插入运算符,一个insert-before运算符,一个append-child运算符和一个update运算符。 在执行期间,这些运算符可能被重写为对现有的SQL结构进行操作,或者只通过更新现有的SQL结构或两者来评估。

    Techniques for changing XML content in a relational database
    4.
    发明申请
    Techniques for changing XML content in a relational database 有权
    在关系数据库中更改XML内容的技术

    公开(公告)号:US20050044113A1

    公开(公告)日:2005-02-24

    申请号:US10956300

    申请日:2004-09-30

    IPC分类号: G06F17/30 G06F17/00

    摘要: Techniques are provided for changing data for an XML construct in an SQL/XML compliant database management system (DBMS). The DBMS allows instances of XML type to represent XML constructs, such as XML documents, XML elements, XML attributes, and fragments of XML documents. An SQL statement is received that includes an XML operator that operates on a particular component in an instance of XML type. During execution of the SQL statement, the XML operator is evaluated by modifying content for the component without modifying the entire instance. For example, an XML delete operator deletes the particular component from the instance. Other XML operators include an insert operator, an insert-before operator, an append-child operator, and an update operator. During execution, these operators may be rewritten to operate on existing SQL constructs, or evaluated by updating only some of the existing SQL constructs, or both.

    摘要翻译: 提供技术用于在符合SQL / XML的数据库管理系统(DBMS)中更改XML构造的数据。 DBMS允许XML类型的实例表示XML构造,例如XML文档,XML元素,XML属性和XML文档片段。 收到一条SQL语句,其中包含一个在XML类型的实例中对特定组件进行操作的XML运算符。 在执行SQL语句期间,通过修改组件的内容而不修改整个实例来评估XML运算符。 例如,XML删除运算符从实例中删除特定组件。 其他XML运算符包括一个插入运算符,一个insert-before运算符,一个append-child运算符和一个update运算符。 在执行期间,这些运算符可能被重写为对现有的SQL结构进行操作,或者只通过更新现有的SQL结构或两者来评估。

    Techniques for changing XML content in a relational database
    5.
    发明授权
    Techniques for changing XML content in a relational database 有权
    在关系数据库中更改XML内容的技术

    公开(公告)号:US06836778B2

    公开(公告)日:2004-12-28

    申请号:US10428445

    申请日:2003-05-01

    IPC分类号: G06F1730

    摘要: Techniques are provided for changing data for an XML construct in an SQL/XML compliant database management system (DBMS). The DBMS allows instances of XML type to represent XML constructs, such as XML documents, XML elements, XML attributes, and fragments of XML documents. An SQL statement is received that includes an XML operator that operates on a particular component in an instance of XML type. During execution of the SQL statement, the XML operator is evaluated by modifying content for the component without modifying the entire instance. For example, an XML delete operator deletes the particular component from the instance. Other XML operators include an insert operator, an insert-before operator, an append-child operator, and an update operator. During execution, these operators may be rewritten to operate on existing SQL constructs, or evaluated by updating only some of the existing SQL constructs, or both.

    摘要翻译: 提供技术用于在符合SQL / XML的数据库管理系统(DBMS)中更改XML构造的数据。 DBMS允许XML类型的实例表示XML构造,例如XML文档,XML元素,XML属性和XML文档片段。 收到一条SQL语句,其中包含一个在XML类型的实例中对特定组件进行操作的XML运算符。 在执行SQL语句期间,通过修改组件的内容而不修改整个实例来评估XML运算符。 例如,XML删除运算符从实例中删除特定组件。 其他XML运算符包括一个插入运算符,一个insert-before运算符,一个append-child运算符和一个update运算符。 在执行期间,这些运算符可能被重写为对现有的SQL结构进行操作,或者只通过更新现有的SQL结构或两者来评估。

    Path-caching mechanism to improve performance of path-related operations in a repository
    6.
    发明授权
    Path-caching mechanism to improve performance of path-related operations in a repository 有权
    路径缓存机制,以提高存储库中路径相关操作的性能

    公开(公告)号:US08949455B2

    公开(公告)日:2015-02-03

    申请号:US11284521

    申请日:2005-11-21

    IPC分类号: G06F15/173 G06F17/30

    摘要: A method and apparatus for processing path-based database operations is provided. According to one aspect, a path cache is maintained. For each hierarchical node that is traversed during a path-determining operation, it is determined whether a cache entry corresponding to that node is already contained in the path cache. If such a cache entry is already contained in the path cache, then the path indicated in that cache entry is used to complete the pathname for the node for which the operation is being performed. As a result, hierarchically higher nodes do not need to be traversed to complete the operation. Alternatively, if such a cache entry is not already contained in the path cache, then a cache entry for the node currently being traversed is generated and inserted into the path cache for use in subsequent path-determining operations.

    摘要翻译: 提供了一种用于处理基于路径的数据库操作的方法和装置。 根据一个方面,维护路径高速缓存。 对于在路径确定操作期间遍历的每个分级节点,确定与该节点相对应的高速缓存条目是否已经包含在路径高速缓存中。 如果这样的缓存条目已经包含在路径缓存中,则使用该缓存条目中指示的路径来完成正在执行该操作的节点的路径名。 因此,不需要遍历层次更高的节点来完成操作。 或者,如果这样的高速缓存条目尚未包含在路径高速缓存中,则生成用于当前正在遍历的节点的高速缓存条目并将其插入到路径高速缓存中以用于随后的路径确定操作。

    Flexible storage of XML collections within an object-relational database
    8.
    发明申请
    Flexible storage of XML collections within an object-relational database 有权
    将XML集合灵活存储在对象关系数据库中

    公开(公告)号:US20070083542A1

    公开(公告)日:2007-04-12

    申请号:US11246039

    申请日:2005-10-07

    IPC分类号: G06F7/00

    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。 集合元素可以映射到串行VARRAY或行外VARRAY。 该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,限制特定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。

    Performing an action in response to a file system event
    10.
    发明申请
    Performing an action in response to a file system event 有权
    执行响应文件系统事件的操作

    公开(公告)号:US20060129584A1

    公开(公告)日:2006-06-15

    申请号:US11014502

    申请日:2004-12-15

    IPC分类号: G06F17/00

    CPC分类号: G06F17/30067 G06F9/542

    摘要: A method and apparatus for performing an action in response to a file system event is provided. According to one aspect, sets of “event listeners” are associated with a file hierarchy and/or the nodes thereof. Each event listener contains a set of “event handlers.” Each event handler corresponds to a separate type of event that may occur relative to the file hierarchy's nodes. When an event is going to occur relative to the hierarchy or a node thereof, all event listeners that are associated with that hierarchy/node are inspected to determine whether those event listeners contain any event handlers that correspond to the event's type. Those event handlers that correspond to the event's type are placed in an ordered list of event handlers to be invoked. As the event handlers in the list are invoked, programmatic mechanisms that correspond to those event handlers are executed to perform customized user-specified actions.

    摘要翻译: 提供了一种用于响应于文件系统事件执行动作的方法和装置。 根据一个方面,“事件监听器”的集合与文件层级和/或其节点相关联。 每个事件监听器包含一组“事件处理程序”。 每个事件处理程序对应于可能相对于文件层次结构节点发生的单独的事件类型。 当相对于层级或其节点将发生事件时,检查与该层级/节点相关联的所有事件监听器,以确定这些事件监听器是否包含与事件类型相对应的任何事件处理程序。 与事件类型相对应的事件处理程序被放置在要调用的事件处理程序的有序列表中。 在列表中的事件处理程序被调用时,执行与这些事件处理程序相对应的程序化机制来执行定制的用户指定的操作。