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Q1) Express given five loosely described problems carefully in { Instance, Question } form as utilized in "Computers and Intractability". For each problem discuss the best time and space complexity you are aware of for solving the problem (from scratch) along with a few words naming or describing the method.
(i) Determine the median of n = 2 k + 1 integers.
(ii) Determine the 2 largest and 2 smallest of n integers.
(iii) Determine that a graph is not a forest (not acyclic).
(iv) Determine that a list of n numbers has no duplicates.
(v) Determine that maximum number of edge disjoint paths between vertices v and w in a graph is less than k.
Explain why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?
CAR (Serial-No, ModConsider the given relations for database which keeps track of auto sales in car dealership.
Course: data mining. Require a 7 page essay on subjects: Warehouse Architectures: the paper requires to contain information about centralized, federated, and tiered data warehouse.
Database Questions: What do you mean by data base scheme? What do you mean by cardinality ratio? What do you mean by degree of relation?
Did the corresponding lines for invoices 1001 and 1008 in table LINE get deleted automatically? Can you explain why?
Suppose a database has tables given below. Write the names and e-mail addresses for all customers who have had stove repair which cost more than $50.
Controls which need a database to either execute transaction completely or not at all.
What are the functional dependencies among the data represented in this first normal form relation?
Illustrate relational algebra expressions for names of all salespeople, names of all salespeople having ORDER row and names of salespeople not having ORDER row.
Draw an ER diagram for database scenario. Design a set of 3NF tables for your database scenario.
Draw the E/R diagrams for the business rules
Write an SQL query to get the author of the book "The Alchemist"
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