How to confirm a record

may be the question is not suitable :joy:
if I have two record use one predicate with different attributes ,will the first record will be covered by the second ? if that happen , I will lost a record. what should i do to prevent covered records ?

If you mutate one predicate with a new data. The whole predicate will be overwritten. To avoid this, your application has to collect the data from this predicate and then treat it and then mutate.

When you use a predicate it is predicted that there will be only a record there. The only thing you could do is use “List”. With List you have no problem of having more than two distincts Records. And you can see details of how to use list without having overwriten here Modifying predicate lists

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