Techniques for transferring a serialized image of XML data
    1.
    发明授权
    Techniques for transferring a serialized image of XML data 有权
    传输XML数据的序列化图像的技术

    公开(公告)号:US07051042B2

    公开(公告)日:2006-05-23

    申请号:US10428393

    申请日:2003-05-01

    IPC分类号: G06F17/30

    CPC分类号: G06F17/3092 Y10S707/99943

    摘要: Techniques for transferring a serialized image of data for an XML construct includes selecting a first format from multiple different XML serialization formats that represent, in a database system, data for XML constructs as a series of data units, such as a series of bytes representing characters, or a series of bits, bytes or octets representing binary values. A message is generated that includes a payload and a payload type field. The payload includes particular serialized data that represents particular data for a particular XML construct in the first format. The type field includes data that indicates the first format. The message is sent from a sending component of the database system to a different receiving component of the database system. These techniques allow the format selection to be based on characteristics of the sending or receiving components to make better use of the resources available to the two components.

    摘要翻译: 用于传送用于XML构造的数据的序列化图像的技术包括从多个不同的XML序列化格式中选择第一格式,所述XML序列化格式在数据库系统中表示作为一系列数据单元的XML结构的数据,诸如表示字符 或一系列表示二进制值的位,字节或八位位组。 生成包含有效载荷和有效载荷类型字段的消息。 有效载荷包括表示第一格式的特定XML构造的特定数据的特定序列化数据。 类型字段包括指示第一格式的数据。 消息从数据库系统的发送组件发送到数据库系统的其他接收组件。 这些技术允许格式选择基于发送或接收组件的特性,以更好地利用两个组件可用的资源。

    Techniques for changing XML content in a relational database
    2.
    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。

    Mechanism to efficiently index structured data that provides hierarchical access in a relational database system
    3.
    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
    4.
    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。

    Mechanisms for storing content and properties of hierarchically organized resources
    5.
    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。

    Techniques for changing XML content in a relational database
    6.
    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。