Real-time calculation method and real-time calculation system
A technology of real-time calculation and calculation results, applied in the field of data processing, can solve problems such as low efficiency and high cost, achieve efficient real-time data services, simplify development costs, and omit learning costs
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[0055] Among them, the definition principle of the primary key: the principle of length, generally no more than 16 bytes; the principle of uniqueness, which is used to uniquely identify a row of records; the principle of hashing, to ensure the balanced distribution of data. For example: Example 1: In the personal identity information table, if personal identity information is queried, and the ID number can uniquely represent a row of data, then the ID number can be used as the primary key. Example 2: In the personal transaction information table, date + personal ID card can be used to query the customer's transaction information on a certain day, and the method of ID number_date can be used as the primary key.
[0056] In order to meet the requirements, the defined output rules can also meet different query requirements. In one embodiment of the present application, the output rules of the above data include the structure of the output table. For example, result tables with dif...
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