Q1:- 1- Find superkeys, candidate keys, primary keys, alternative keys in the following CAR relation schema? CAR (State, Reg#, SerialNo, Model, Year) 2- Find superkeys, candidate keys, primary keys, alternative keys in the following relation? A1 Hh 101 D10 10 A2 Mm 200 D30 20 АЗ Ff 50 D90 30 A4 LI 60 D53 30 A1 Ff 70 D6 10

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A: Actually, database is a used to stored the data.

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Q: an example, suppose a eates a new relation ri with a foreign key pointing to anotner relation r2.…

A: this is about foreign key and its constarint.

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A: Below i have given query:

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A: primary key constraint in a relational database acts as a unique identifier for each row in a table.