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Engineering · Computer Science
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Lets suppose there are twenty shop stores and 50,000 students in Wuhan University, and we want to build a database based on MySQL to maintain the daily purchase businesses in Wuhan University. Please use SQL to realize the following targets a) 1. Please build a schema including at least two entities, saying Store and Student, and a relationship Purchase, such that the main purse details and the main characters of stores (including their department region number) and students (including their names, country name, student number, etc.) can be modeled properly Query the three tables to extract the total purchase amount of a shop store with its name Zigiang chaoshi in the department region Technology Region. Query the three tables to extract your total purchase amount in all shop stores in the year 2018. Query the three tables to extract the yearly purchase amounts of all the shop stores in the department region Technology Region and group and sort the amounts by year b) e) d)
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