I created one data entity A and byod to export data to azure database, but somehow no data can be exported while the schema was successfully created. However, I was able to export the other data entity B. I see entity doesn't have any Key but B has a few keys in the data entity. Is it required to have a key when there is no primary key in the table which data entity is referencing to? I have no problem display all the data using url for both of data entities.
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