Take a look at the database structure for cities in nations below. There are numerous cities in a nation, and the same city name can be found in several countries.   Country (integer ID, string (unique) name)   (serialNo: integer (not null), CountryID: integer, CityName: string, Population: integer)   Is it possible for a city to have an unknown CityName? No, it's against the rules of the domain. Yes. No, infringe

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A: Answer is

Q: Task

A: Answer Taak 1:-     Output:-

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A: You question is regarding the error you are getting and the queries. Here is the explanation:

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