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How to realize the flexible query of blockchain?

2022-02-03 20:54:00 Q & A of Denglian community

I want to store the user's behavior log data on the private chain , Then you can view the data by specifying the time range specified by the user . for example : To view the user XXXX Of 2020 Log data for the year . How can I write the contract data structure ?

Take the answer 1:

Whether this application blockchain can be developed into “ Specific application chain ”, That is, there is a special processing flow and storage data structure . For field flexibility, refer to K/V as well as mongo Characteristics of .

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