Progressive refinement of a federated query plan during query execution
    1.
    发明授权
    Progressive refinement of a federated query plan during query execution 失效
    查询执行期间联合查询计划的逐步细化

    公开(公告)号:US07877381B2

    公开(公告)日:2011-01-25

    申请号:US11389596

    申请日:2006-03-24

    IPC分类号: G06F7/00 G06F17/00

    CPC分类号: G06F17/30463

    摘要: A way for progressively refining a query execution plan during query execution in a federated data system is provided. Re-optimization constraints are placed in the query execution plan during query compilation. When a re-optimization constraint is violated during query execution, a model of the query execution plan is refined using a partially executed query to form a new query execution plan. The new query execution plan is compiled. The compiled new query execution plan is executed.

    摘要翻译: 提供了一种在联合数据系统中查询执行期间逐步完善查询执行计划的方法。 在查询编译期间,重新优化约束被放置在查询执行计划中。 当在查询执行期间违反重新优化约束时,使用部分执行的查询来改进查询执行计划的模型以形成新的查询执行计划。 新的查询执行计划被编译。 执行编译的新查询执行计划。

    AUTOMATICALLY AND ADAPTIVELY DETERMINING EXECUTION PLANS FOR QUERIES WITH PARAMETER MARKERS
    3.
    发明申请
    AUTOMATICALLY AND ADAPTIVELY DETERMINING EXECUTION PLANS FOR QUERIES WITH PARAMETER MARKERS 失效
    自动和自适应地确定具有参数标记的查询的执行计划

    公开(公告)号:US20080222093A1

    公开(公告)日:2008-09-11

    申请号:US12125221

    申请日:2008-05-22

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30469

    摘要: A method and system for automatically and adaptively determining query execution plans for parametric queries. A first classifier trained by an initial set of training points is generated. A query workload and/or database statistics are dynamically updated. A new set of training points is collected off-line. Using the new set of training points, the first classifier is modified into a second classifier. A database query is received at a runtime subsequent to the off-line phase. The query includes predicates having parameter markers bound to actual values. The predicates are associated with selectivities. A mapping of the selectivities into a plan determines the query execution plan. The determined query execution plan is included in an augmented set of training points, where the augmented set includes the initial set and the new set.

    摘要翻译: 一种用于自动和自适应地确定参数查询的查询执行计划的方法和系统。 产生由初始训练点训练的第一分类器。 动态更新查询工作负载和/或数据库统计信息。 离线收集了一套新的培训点。 使用新的一组训练点,第一个分类器被修改为第二个分类器。 在离线阶段之后的运行时间接收数据库查询。 该查询包括具有绑定到实际值的参数标记的谓词。 谓词与选择性相关联。 将选择性映射到计划中确定查询执行计划。 确定的查询执行计划被包括在增强的训练点集合中,其中增强集合包括初始集合和新集合。

    Automatically and adaptively determining execution plans for queries with parameter markers
    4.
    发明授权
    Automatically and adaptively determining execution plans for queries with parameter markers 失效
    自动和自适应地确定具有参数标记的查询的执行计划

    公开(公告)号:US07958113B2

    公开(公告)日:2011-06-07

    申请号:US12125221

    申请日:2008-05-22

    IPC分类号: G06F7/00 G06F17/30 G06F15/16

    CPC分类号: G06F17/30469

    摘要: A method and system for automatically and adaptively determining query execution plans for parametric queries. A first classifier trained by an initial set of training points is generated. A query workload and/or database statistics are dynamically updated. A new set of training points is collected off-line. Using the new set of training points, the first classifier is modified into a second classifier. A database query is received at a runtime subsequent to the off-line phase. The query includes predicates having parameter markers bound to actual values. The predicates are associated with selectivities. A mapping of the selectivities into a plan determines the query execution plan. The determined query execution plan is included in an augmented set of training points, where the augmented set includes the initial set and the new set.

    摘要翻译: 一种用于自动和自适应地确定参数查询的查询执行计划的方法和系统。 产生由初始训练点训练的第一分类器。 动态更新查询工作负载和/或数据库统计信息。 离线收集了一套新的培训点。 使用新的一组训练点,第一个分类器被修改为第二个分类器。 在离线阶段之后的运行时间接收数据库查询。 该查询包括具有绑定到实际值的参数标记的谓词。 谓词与选择性相关联。 将选择性映射到计划中确定查询执行计划。 确定的查询执行计划被包括在增强的训练点集合中,其中增强集合包括初始集合和新集合。

    SQL query problem determination tool
    5.
    发明授权
    SQL query problem determination tool 失效
    SQL查询问题确定工具

    公开(公告)号:US07765200B2

    公开(公告)日:2010-07-27

    申请号:US11089677

    申请日:2005-03-25

    IPC分类号: G06F7/00 G06F17/30

    CPC分类号: G06F11/362

    摘要: A method and system for query problem determination have been disclosed. The method includes receiving a database query; creating a query execution plan for the database query comprising a plurality of query plan operators; and executing the query execution plan, wherein a progress indicator is displayed for each query plan operator. The system includes a query progress monitor, which collects progress information for each query plan operator during the execution of the query execution plan. This progress information is then communicated to a query progress visualizer and a query progress analyzer, which graphically displays the progress information as a progress indicator for each query plan operator and performs debugger type operations, respectively. In this manner, information concerning the progress of the query execution is provided at a query operator level, such that the information may be used to more efficiently debug any problems with the query.

    摘要翻译: 已经公开了一种用于查询问题确定的方法和系统。 该方法包括接收数据库查询; 为包括多个查询计划运算符的数据库查询创建查询执行计划; 以及执行所述查询执行计划,其中针对每个查询计划运算符显示进度指示符。 该系统包括查询进度监视器,它在执行查询执行计划期间收集每个查询计划运算符的进度信息。 然后将该进度信息传递给查询进度可视化器和查询进度分析器,该分析器以图形方式将进度信息显示为每个查询计划操作符的进度指示符,并分别执行调试器类型操作。 以这种方式,在查询操作者级别提供关于查询执行进度的信息,使得可以使用该信息来更有效地调试查询的任何问题。

    SQL query problem determination tool
    9.
    发明申请
    SQL query problem determination tool 失效
    SQL查询问题确定工具

    公开(公告)号:US20060218125A1

    公开(公告)日:2006-09-28

    申请号:US11089677

    申请日:2005-03-25

    IPC分类号: G06F17/30

    CPC分类号: G06F11/362

    摘要: A method and system for query problem determination have been disclosed. The method includes receiving a database query; creating a query execution plan for the database query comprising a plurality of query plan operators; and executing the query execution plan, wherein a progress indicator is displayed for each query plan operator. The system includes a query progress monitor, which collects progress information for each query plan operator during the execution of the query execution plan. This progress information is then communicated to a query progress visualizer and a query progress analyzer, which graphically displays the progress information as a progress indicator for each query plan operator and performs debugger type operations, respectively. In this manner, information concerning the progress of the query execution is provided at a query operator level, such that the information may be used to more efficiently debug any problems with the query.

    摘要翻译: 已经公开了一种用于查询问题确定的方法和系统。 该方法包括接收数据库查询; 为包括多个查询计划运算符的数据库查询创建查询执行计划; 以及执行所述查询执行计划,其中针对每个查询计划运算符显示进度指示符。 该系统包括查询进度监视器,它在执行查询执行计划期间收集每个查询计划运算符的进度信息。 然后将该进度信息传递给查询进度可视化器和查询进度分析器,该分析器以图形方式将进度信息显示为每个查询计划操作符的进度指示符,并分别执行调试器类型操作。 以这种方式,在查询操作者级别提供关于查询执行进度的信息,使得可以使用该信息来更有效地调试查询的任何问题。

    Process for the production of compounds based on silanes containing
epoxy groups
    10.
    发明授权
    Process for the production of compounds based on silanes containing epoxy groups 失效
    用于生产基于含有环氧基硅烷的化合物的方法

    公开(公告)号:US6008285A

    公开(公告)日:1999-12-28

    申请号:US635955

    申请日:1996-05-06

    摘要: A process is disclosed for the production of compounds based on hydrolyzable silanes containing epoxy groups. The process involves adding one of the following substances to a pre-hydrolyzed silicon compound A with at least one hydrolytically non-separable group which includes an epoxy ring in the presence of an alcoholate of zirconium or aluminum: i) a particulate substance B which can be selected from oxides, oxyhydrates, nitrides or carbides of Si, Al and B, and of transition metals, the particle size being 1-100 nm;ii) a surface-active agent, preferably non-ionic;iii) an aromatic polyol with an average molecular weight not exceeding 1000, the resulting compounds being useful to produce coatings and molded bodies with a range of properties, in particular high scratch resistance, lasting hydrophilic characteristics, corrosion resistance, good adhesion and transparency.

    摘要翻译: PCT No.PCT / EP94 / 03336 Sec。 371日期:1996年5月6日 102(e)日期1996年5月6日PCT 1994年10月10日PCT PCT。 公开号WO95 / 13326 日期1995年5月18日公开了基于含有环氧基的可水解硅烷的化合物的生产方法。 该方法包括在锆或铝的醇化物存在下,将至少一种包含环氧环的至少一个水解不可分离基团加入到预水解硅化合物A中的下列物质之一:i)颗粒物质B,其可以 选自Si,Al和B以及过渡金属的氧化物,氧化合物,氮化物或碳化物,粒度为1-100nm; ii)表面活性剂,优选非离子的; iii)平均分子量不超过1000的芳族多元醇,所得化合物可用于生产具有一定范围性质,特别是高耐刮擦性,持久的亲水性,耐腐蚀性,良好的粘附性和透明性的涂料和成型体。