Classes (class, type, country, numGuns, bore, displacement) Ships (name, class, launched) Battles (name, date) Outcomes (ship, battle, result)   For the battleships database schema above (record examples attached), write the following as tuple-based CHECK constraints (ie. during the table creation): a) No ship can be in battle before it is launched.

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A: Here is the solution;

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A: The main reason for storing the data in relational database is  it enables users to store and…

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A: The reasons why null values might be introduced into the database. To show, <> ALL is…

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A: The term attribute in the relational database can be defined as a column of a table.

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A: The question has been solved in step2

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A: Er diagram or entity relationship diagram gives a brief lookout for all the entities present in a…

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A: Design a schema and show a sample database for that application, using the notation of Figure 1.…

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A: A weak entity in database design refers to an entity type that does not have a primary key or whose…

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A: Given: 1. The database stores information about houses, each with a house ID, address, and zip code.…

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A: A library database is a structured collection of information designed to manage and organize…

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