Evolution of XML schemas involving partial data copy
    1.
    发明申请
    Evolution of XML schemas involving partial data copy 有权
    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

    IPC分类号: G06F7/00

    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。

    Implementation of backward compatible XML schema evolution in a relational database system
    2.
    发明授权
    Implementation of backward compatible XML schema evolution in a relational database system 有权
    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

    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。

    Implementation of backward compatible XML schema evolution
    3.
    发明申请
    Implementation of backward compatible XML schema evolution 有权
    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

    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。

    Evolution of XML schemas involving partial data copy
    4.
    发明授权
    Evolution of XML schemas involving partial data copy 有权
    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

    IPC分类号: G06F7/00

    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。

    Management of complex XML schemas in a database system
    5.
    发明授权
    Management of complex XML schemas in a database system 有权
    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

    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。

    Management of complex XML schemas in a database system
    6.
    发明申请
    Management of complex XML schemas in a database system 有权
    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

    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。

    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。

    Flexible storage of XML collections within an object-relational database
    10.
    发明授权
    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:US09367642B2

    公开(公告)日:2016-06-14

    申请号:US11246039

    申请日:2005-10-07

    IPC分类号: G06F17/30 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。 集合元素可以被映射到串联的VARRAY或者行外的VARRAY。 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,限制某些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。