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公开(公告)号:US07805411B2
公开(公告)日:2010-09-28
申请号:US10935908
申请日:2004-09-07
申请人: Mohamed Ziauddin , Benoit Dageville , Mohamed Zait , Dinesh Das
发明人: Mohamed Ziauddin , Benoit Dageville , Mohamed Zait , Dinesh Das
CPC分类号: G06F17/30474 , G06F17/30306 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: Auto-tuning can be performed by receiving a database query language statement and performance information related to the statement, determining whether one or more performance statistics of the statement are available or missing in the performance information, and determining an auto-tuning hint for each missing statistic.
摘要翻译: 可以通过接收与该语句相关的数据库查询语言语句和性能信息来确定语句的一个或多个性能统计信息是否在性能信息中可用或丢失来执行自动调整,以及确定每个缺失的自动调整提示 统计。
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公开(公告)号:US20090106219A1
公开(公告)日:2009-04-23
申请号:US12188683
申请日:2008-08-08
申请人: Peter Belknap , Benoit Dageville , Dinesh Das , Khaled Yagoub , Mohamed Zait , Mohamed Ziauddin
发明人: Peter Belknap , Benoit Dageville , Dinesh Das , Khaled Yagoub , Mohamed Zait , Mohamed Ziauddin
IPC分类号: G06F17/30
CPC分类号: G06F17/30469 , G06F17/30463
摘要: Approaches, techniques, and mechanisms are disclosed for ensuring that a database command is executed according to a query plan that has been verified to be actually optimal. Except in rare circumstances, a database server does not execute a query plan unless it is first verified by the database server. The database server receives a request to execute a database command. The database server determines an unverified plan is the best plan for satisfying the request. Rather than risk the unknown behavior of an unverified plan, the database server instead satisfies the request according to a verified plan. Subsequently—for example as part of a scheduled job—the database server executes the unverified plan to determine performance statistics. Based at least on the performance statistics, the database server determines whether or not to verify the unverified plan. Techniques for concurrent and optimistic verifications are also disclosed.
摘要翻译: 公开了方法,技术和机制,以确保根据已被验证为实际最佳的查询计划来执行数据库命令。 除非在极少数情况下,数据库服务器不执行查询计划,除非数据库服务器首先进行了验证。 数据库服务器接收执行数据库命令的请求。 数据库服务器确定未验证的计划是满足请求的最佳方案。 而不是冒险未验证的计划的未知行为,数据库服务器而是根据验证的计划满足请求。 随后 - 例如作为计划作业的一部分 - 数据库服务器执行未验证的计划以确定性能统计信息。 至少基于性能统计,数据库服务器确定是否验证未验证的计划。 还公开了并发和乐观验证的技术。
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公开(公告)号:US20050125427A1
公开(公告)日:2005-06-09
申请号:US10936778
申请日:2004-09-07
申请人: Benoit Dageville , Mohamed Ziauddin , Khaled Yagoub , Mohamed Zait , Dinesh Das , Karl Dias , Mark Ramacher , Leng Tan
发明人: Benoit Dageville , Mohamed Ziauddin , Khaled Yagoub , Mohamed Zait , Dinesh Das , Karl Dias , Mark Ramacher , Leng Tan
CPC分类号: G06F17/30474 , G06F17/30306 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: A method for receiving a database query language statement and performance information about the statement at an optimizer and generating one or more tuning actions for the statement with the performance information is disclosed.
摘要翻译: 公开了一种用于在优化器处接收数据库查询语言语句和关于语句的性能信息的方法,并且针对具有性能信息的语句生成一个或多个调优操作。
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公开(公告)号:US20050138015A1
公开(公告)日:2005-06-23
申请号:US10936427
申请日:2004-09-07
申请人: Benoit Dageville , Mohamed Ziauddin , Mohamed Zait , Dinesh Das
发明人: Benoit Dageville , Mohamed Ziauddin , Mohamed Zait , Dinesh Das
CPC分类号: G06F16/24549 , G06F16/217 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: A method for receiving a database query language statement and statistics information about the statement at an optimizer, and identifying an inaccurate statistic for the statement, is disclosed.
摘要翻译: 公开了一种用于在优化器处接收数据库查询语言语句和关于语句的统计信息以及识别语句的不准确统计的方法。
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公开(公告)号:US20050119999A1
公开(公告)日:2005-06-02
申请号:US10935906
申请日:2004-09-07
申请人: Mohamed Zait , Benoit Dageville , Dinesh Das , Khaled Yagoub , Mohamed Ziauddin
发明人: Mohamed Zait , Benoit Dageville , Dinesh Das , Khaled Yagoub , Mohamed Ziauddin
CPC分类号: G06F16/24549 , G06F16/217 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: A method of gathering performance information about a workload, and automatically identifying a set of high-load database query language statements from the workload based on the performance information, is disclosed.
摘要翻译: 公开了一种收集有关工作负载的性能信息的方法,并且基于性能信息自动从工作负载中识别一组高负载数据库查询语言语句。
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公开(公告)号:US07747606B2
公开(公告)日:2010-06-29
申请号:US10936778
申请日:2004-09-07
申请人: Benoit Dageville , Mohamed Ziauddin , Khaled Yagoub , Mohamed Zait , Dinesh Das , Karl Dias , Mark Ramacher , Leng Leng Tan
发明人: Benoit Dageville , Mohamed Ziauddin , Khaled Yagoub , Mohamed Zait , Dinesh Das , Karl Dias , Mark Ramacher , Leng Leng Tan
CPC分类号: G06F17/30474 , G06F17/30306 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: A method for receiving a database query language statement and performance information about the statement at an optimizer and generating one or more tuning actions for the statement with the performance information is disclosed.
摘要翻译: 公开了一种用于在优化器处接收数据库查询语言语句和关于语句的性能信息的方法,并且针对具有性能信息的语句生成一个或多个调优操作。
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公开(公告)号:US20050120000A1
公开(公告)日:2005-06-02
申请号:US10935908
申请日:2004-09-07
申请人: Mohamed Ziauddin , Benoit Dageville , Mohamed Zait , Dinesh Das
发明人: Mohamed Ziauddin , Benoit Dageville , Mohamed Zait , Dinesh Das
CPC分类号: G06F17/30474 , G06F17/30306 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: Auto-tuning can be performed by receiving a database query language statement and performance information related to the statement, determining whether one or more performance statistics of the statement are available or missing in the performance information, and determining an auto-tuning hint for each missing statistic.
摘要翻译: 可以通过接收与该语句相关的数据库查询语言语句和性能信息来确定语句的一个或多个性能统计信息是否在性能信息中可用或丢失来执行自动调整,以及确定每个缺失的自动调整提示 统计。
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公开(公告)号:US08700608B2
公开(公告)日:2014-04-15
申请号:US12188683
申请日:2008-08-08
申请人: Peter Belknap , Benoit Dageville , Dinesh Das , Khaled Yagoub , Mohamed Zait , Mohamed Ziauddin
发明人: Peter Belknap , Benoit Dageville , Dinesh Das , Khaled Yagoub , Mohamed Zait , Mohamed Ziauddin
CPC分类号: G06F17/30469 , G06F17/30463
摘要: Approaches, techniques, and mechanisms are disclosed for ensuring that a database command is executed according to a query plan that has been verified to be actually optimal. Except in rare circumstances, a database server does not execute a query plan unless it is first verified by the database server. The database server receives a request to execute a database command. The database server determines an unverified plan is the best plan for satisfying the request. Rather than risk the unknown behavior of an unverified plan, the database server instead satisfies the request according to a verified plan. Subsequently—for example as part of a scheduled job—the database server executes the unverified plan to determine performance statistics. Based at least on the performance statistics, the database server determines whether or not to verify the unverified plan. Techniques for concurrent and optimistic verifications are also disclosed.
摘要翻译: 公开了方法,技术和机制,以确保根据已被验证为实际最佳的查询计划来执行数据库命令。 除非在极少数情况下,数据库服务器不执行查询计划,除非数据库服务器首先进行了验证。 数据库服务器接收执行数据库命令的请求。 数据库服务器确定未验证的计划是满足请求的最佳方案。 而不是冒险未验证的计划的未知行为,数据库服务器而是根据验证的计划满足请求。 随后 - 例如作为计划作业的一部分 - 数据库服务器执行未验证的计划以确定性能统计信息。 至少基于性能统计信息,数据库服务器确定是否验证未验证的计划。 还公开了并发和乐观验证的技术。
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公开(公告)号:US07739263B2
公开(公告)日:2010-06-15
申请号:US10936781
申请日:2004-09-07
申请人: Dinesh Das , Benoit Dageville , Mohamed Ziauddin , Mohamed Zait
发明人: Dinesh Das , Benoit Dageville , Mohamed Ziauddin , Mohamed Zait
IPC分类号: G06F17/30
CPC分类号: G06F17/30474 , G06F17/30306 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: A method for determining a name for a query block of a database query language statement, and associating one or more tuning hints with the query block using the name.
摘要翻译: 一种用于确定数据库查询语言语句的查询块的名称并使用该名称将一个或多个调优提示与查询块相关联的方法。
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公开(公告)号:US20050125398A1
公开(公告)日:2005-06-09
申请号:US10936781
申请日:2004-09-07
申请人: Dinesh Das , Benoit Dageville , Mohamed Ziauddin , Mohamed Zait
发明人: Dinesh Das , Benoit Dageville , Mohamed Ziauddin , Mohamed Zait
CPC分类号: G06F17/30474 , G06F17/30306 , Y10S707/99932 , Y10S707/99934 , Y10S707/99944
摘要: A method for determining a name for a query block of a database query language statement, and associating one or more tuning hints with the query block using the name, is disclosed.
摘要翻译: 公开了一种用于确定数据库查询语言语句的查询块的名称以及使用该名称将一个或多个调优提示与查询块相关联的方法。
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