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公开(公告)号:US09189521B2
公开(公告)日:2015-11-17
申请号:US14044657
申请日:2013-10-02
Applicant: salesforce.com, inc.
Inventor: Chirag Rajan , Jesse Collins , Seung-Yeoul Yang , Hoon Kim
CPC classification number: G06F17/30463 , G06F17/30442 , G06F17/30477
Abstract: Methods and systems are provided for querying a database. One exemplary method for obtaining data from an on-demand database supporting one or more tenants involves obtaining model database statistics based on expected utilization information for a tenant and providing the model database statistics to the on-demand database. The on-demand database utilizes the model database statistics to generate a query plan and executes the query plan to obtain data from the model database statistics.
Abstract translation: 提供了方法和系统来查询数据库。 从支持一个或多个租户的点播数据库获取数据的一个示例性方法包括基于租户的预期利用信息获取模型数据库统计信息,并将该模型数据库统计信息提供给按需数据库。 按需数据库利用模型数据库统计信息生成查询计划,并执行查询计划以从模型数据库统计信息中获取数据。
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公开(公告)号:US20140040235A1
公开(公告)日:2014-02-06
申请号:US14044657
申请日:2013-10-02
Applicant: salesforce.com, inc.
Inventor: Chirag Rajan , Jesse Collins , Seung-Yeoul Yang , Hoon Kim
IPC: G06F17/30
CPC classification number: G06F17/30463 , G06F17/30442 , G06F17/30477
Abstract: Methods and systems are provided for querying a database. One exemplary method for obtaining data from an on-demand database supporting one or more tenants involves obtaining model database statistics based on expected utilization information for a tenant and providing the model database statistics to the on-demand database. The on-demand database utilizes the model database statistics to generate a query plan and executes the query plan to obtain data from the model database statistics.
Abstract translation: 提供了方法和系统来查询数据库。 从支持一个或多个租户的点播数据库获取数据的一个示例性方法包括基于租户的预期利用信息获取模型数据库统计信息,并将该模型数据库统计信息提供给按需数据库。 按需数据库利用模型数据库统计信息生成查询计划,并执行查询计划以从模型数据库统计信息中获取数据。
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