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DATABASE QUERYING APPARATUSES, METHODS FOR QUERYING A DATABASE, AND NON-TRANSITORY TANGIBLE MACHINE-READABLE MEDIA THEREOF
DATABASE QUERYING APPARATUSES, METHODS FOR QUERYING A DATABASE, AND NON-TRANSITORY TANGIBLE MACHINE-READABLE MEDIA THEREOF
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机译：数据库查询装置，数据库查询方法及其非暂时性可识别机器可读介质
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摘要
Database querying apparatuses, methods for querying a database, and non-transitory tangible machine-readable media thereof are provided. The database querying apparatus includes receives a query including an adjective, an attribute, and a dataset name. The database querying apparatuses is stored with a fact dataset, which is defined with the attribute and at least one data field. The fact dataset includes at least one fact record. Each fact record includes an attribute value corresponding to the attribute and a list of data corresponding to the at least one data field. The database querying apparatuses accesses the fact dataset according to the dataset name, divides the fact dataset into several groups according to the attribute values, apply the operation corresponding to the adjective to each group to derive several sub-results, and generate the final result for the query from the sub-results. The operation corresponds to the adjective.
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