Calculation method based on dynamic tree structured expression
The invention relates to the technical field of table data processing, in particular to a calculation method based on a dynamic tree structured expression, which comprises the following steps of: analyzing inclusion relationships in a data table, and constructing a dynamic tree structure reflecting...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of table data processing, in particular to a calculation method based on a dynamic tree structured expression, which comprises the following steps of: analyzing inclusion relationships in a data table, and constructing a dynamic tree structure reflecting multi-dimensional data mapping based on the relationships, and each branch tree represents an independent data dimension. According to the method, the optimal path is selected by separating the query target and calculating the branch query complexity, and the optimized path expression is obtained by intelligently splicing the branch target path expressions, so that the efficiency and the accuracy of performing data retrieval through the expression are effectively improved. Judgment and calculation are carried out according to the total query complexity of the expressions, the query target of the node with the highest complexity is extracted to generate the optimal branch tree, so that the retrieval complexity is re |
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