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Abstract Query Processing Using Metadata on Multiple Complex Data Sources

机译:使用多个复杂数据源上的元数据进行抽象查询处理

摘要

Systems and methods for performing a query using abstracted metadata are described. As described, a metadata object that requests data from a plurality of data sources can be received from, for example, a user device. One or more queries for the one or more of the plurality of data sources based upon the metadata object can be generated. The queries can then be transmitted to the one or more data sources. Results of the queries, according to the method, can be stored in a block memory. In various embodiments, the metadata object may be user-generated and define one or more of a data source, filter conditions, sorting conditions, aggregations criteria, and an operation. Additionally, various embodiments describe updating the queries at pre-determined intervals which can be defined by the metadata object.
机译:描述了用于使用抽象的元数据执行查询的系统和方法。如所描述的,可以从例如用户设备接收从多个数据源请求数据的元数据对象。可以基于元数据对象生成针对多个数据源中的一个或多个的一个或多个查询。然后可以将查询传输到一个或多个数据源。根据该方法,查询结果可以存储在块存储器中。在各种实施例中,元数据对象可以是用户生成的,并且定义数据源,过滤条件,排序条件,聚合标准和操作中的一个或多个。另外,各种实施例描述了以可以由元数据对象定义的预定间隔来更新查询。

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