如何在Hyperledger编程中使用stub.CreateTable

Question

A chaincode based on Hyperledger uses stub.PutState and stub.GetState to interact with the data base. However, if I have a struct with more than one attibutes, for example :

person { "ID": "123", "firstname":"joe", "lastname":"doe", "age":"34", }

Then if I want to update the age, what arguments should I send to the method ?

I noticed that there is stub.CreateTable method which seems to be more convenient for my case, however, I couldn't find any document or explication about how to use this method. Would you please give me a link to the document or some brief explication please ?

Thanks.

Answer 1

You can not change anything on the ledger.The only way you can update the person infomation is insert a new line to cover the old.