Every night, AT&T has to update its database of every customer's telephone number. To enable fast lookup the database includes an index that is a sorted list of all its phone numbers. This index must be rebu each night by re-sorting the contents of the database. AT&T has hired you as a consultant to analyze their computing needs for the nightly sorting run. Aft carefully checking GitHub, you have found three sorting algorithms – A, B, and C - that can sort n pho numbers in 3 × 10-7n², 10-5n log2 n, and 1.2 x 10-4n seconds respectively on a single processor. - 11. 12. 13. 14. What is the smallest problem size no such that algorithm B is strictly faster than algorithm for all n ≥ no? (Hint: Plugging in values for n or using Newton's method are acceptable ways to sol the problem, and you are welcome to use online tools such as Wolfram Alpha and Desmos.) Expla your reasoning. What is the smallest problem size n₁ for which algorithm C is strictly faster than algorithm for all n ≥n₁? Explain your reasoning. Describe how to construct a sorting algorithm that always achieves the best running time any of algorithms A, B, or C for a given n. Suppose the phone database contains 108 phone numbers. The updated information arriv at 4 AM, and the company demands that the new database be ready for use by 5 AM, i.e. one ho later. To meet this deadline, you may split the database evenly across k processors and sort ea part separately. (For this problem, ignore the cost of putting the pieces back together.) How ma processors do you need to meet your deadline with each of algorithms A. B. and C?

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Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.