Contents: CS W186 Fall 2019 Midterm 1 Do not turn this page until instructed to start the exam. • You should receive one single-sided answer sheet and a 20-page exam packet. • The midterm has 6 questions, each with multiple parts, and worth a total of 79 points. Taking the exam: • You have 110 […]
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CS 186/286 Fall 2017 Final Exam • Do not turn this page until instructed to start the exam. • You should receive 1 answer sheet and a 15-page exam packet. • All answers should be written on the answer sheet. The exam packet will be collected but not graded. • You have 3 hours to
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CS W186 Fall 2019 DB Design 1 Introduction So far, we’ve learned how to use already built databases: SQL queries! We also learned the internals of a database management system which includes many abstraction levels. But what happens if we are given a high-level description of what data we want to store with our database?
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Contents: CS W186 Fall 2019 Midterm 2 Do not turn this page until instructed to start the exam. • You should receive one single-sided answer sheet and a 21-page exam packet. • The midterm has 6 questions, each with multiple parts, and worth a total of 74 points. Taking the exam: • You have 110
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Contents: CS W186 Spring 2019 Final Do not turn this page until instructed to start the exam. • You should receive one double-sided answer sheet and a 24-page exam packet. • The midterm has 9 questions, each with multiple parts. • The midterm is worth a total of 125.5 points. Taking the exam: • You
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CS W186 Spring 2020 Sorting In CS61B, you learned about many different sorting algorithms. Why are we learning yet another new one in this class? All of the traditional sorting algorithms (i.e. quick sort, insertion sort, etc.) rely on us being able to store all of the data in memory. This is a luxury we
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CS W186 Spring 2020 Query Optimization 1 Introduction When we covered SQL, we gave you a helpful mental model for how queries are executed. First you get all the rows in the FROM clause, then you filter out columns you don’t need in the WHERE clause, and so on. This was useful because it guarantees
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CS 186/286 Fall 2017 Final Exam • Do not turn this page until instructed to start the exam. • You should receive 1 answer sheet and a 25-page exam packet. • All answers should be written on the answer sheet. The exam packet will be collected but not graded. • You have 3 hours to
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CS W186 Introduction to Database Systems Spring 2020 Josh Hug, Michael Ball DIS 10 1 ER Diagrams We want to store sports teams and their players in our database. Draw an ER diagram correspond- ing to data given below: • Every Team in our database will have a unique team_name and a stadium where they
CS W186 Introduction to Database Systems Spring 2020 Josh Hug, Michael Ball DIS 10 1 ER Diagrams We want to store sports teams and their players in our database. Draw an ER diagram correspond- ing to data given below: • Every Team in our database will have a unique team_name and a stadium where they