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For each of the following descriptions:
a. A piano manufacturer wants to track all pianos it makes. Each piano has a unique serial number and a manufacturing completion date. Each instrument represents exactly one piano model, all of which have an identification number and model. The company produces thousands of pianos of a certain model, and the design is specified before any single piano exists.
b. A vendor builds multiple types of tablet computers. Each hs a type identification number and a name. The key specifications for each type include amount of storage and display type. The company uses multiple processor types, exactly one of which is used for a specific tablet type. The same processor can be used in multiple types of tablets. Each processor has a manufacturer and a manufacturer's unique code that identifies it.
Perform the following tasks:
1. Identify the degree and cardinalities of the relationship.
2. Express the relationships graphically with an E-R diagram.
database systems1. list the acid properties. explain the usefulness of each.2. consider the following two transactions
describe the challenges that an organization will face when changing business processes and how information systems
Explain why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?
It seems that every Internet search engine or electronic commerce Web site uses databases to provide dynamic content and structure to a Web site's content. Banks use databases to print off customer monthly statements.
Suppose we are to design a registrar's database to store information about students, courses, the courses students have taken. Convert the E/R diagram into a relational schema.
Implement a database of courses and students for a school.
Describe the following CLI's and Database Gateways and Describe their architecture, components and challenges.
your boss has just heard about some nefarious computer activities called ping sweeps and port scans. he wants to know
Describe a scenario in which discretionary access controls are required to enforce a security policy that cannot be enforced using onlymandatory controls.
Does the overall regression show a significant relationship between the predictors and the response variable? Which predictor (s) significantly contribute(s) to the explanation
Write the SQL code to delete the row for William Smithfield and write the SQL code that will save the changes
Determine the answer (expected result) based on your reading of from text book: - Just show the expected output when you run the syntax.
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