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Consider the Notown database from Exercise 2.5. You have decided to recommend that Notown use a relational database system to store company data. Show the SQL statements for creating relations corresponding to the entity sets and relationship sets in your design. Identify any constraints in the ER diagram that you are unable to capture in the SQL statements and brie?y explain why you could not express them.
Describing the purpose of database an its functionality, plus a detailed E-R diagram.
Explain why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?
Create use case to describe a typical sales process. Then make a sequence diagram for use case.
let t1 have the operations rx wx ry wy and t2 have the operations rx wx. consider adding either a commit or abort to
Compute the closure sets of R, find all non-trivial dependencies and what are the candidate keys of R?
write a 2 page research paper excluding the title page on the turing and von neumann models. compare and contrast each
Draw an EER model for the requirements identified in Part 1. The EER Model should be accompanied with a data dictionary which includes entity type table, relationship type table and attribute table.
consider the following set of database tables same tables from assignment 6-1. please take note of foreign keys most of
Describe a minimum of three (3) heuristics to optimize Queries - provide the SQL code (and screen shots)
question 1. consider the relational schemapartpart-id name costsubpartpart-id subpart-id counta tuple p1 p2 3 in the
questionethical and legal considerations in marketing intellectual property and product safetyprepare a paper in which
Find the name and membership number of members who have borrowed more than five different books of that publisher.
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