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Prepare a memorandum examining use of databases in organization. Write database applications are used: Microsoft Access, DB2, Oracle, etc. Explain by proposing improvements. For large organizations, restrict scope of the paper to department in which you work.
You have been asked to design database design for BoingX Aircraft Company (BAC), that has two products: TRX-5A and TRX-5B HUD (heads-up display) units.
The DBA denormalized some of the data in the Premiere Products database to improve performance. Which field or fields cause the table to no longer be in third normal form? In which normal form is the denormalized table?
MCIS 630 Database Systems: - Write a recursive SQL query that outputs the names of all subparts of the part with part-id “P- 100”.
Pharmacy systems today are more efficient and user friendly when compared to the systems 20 years ago.
Implement a database of courses and students for a school.
Determine airports with late flights to Toronto on a big plane. "Late" means departing after 9:00pm; "big" means with capacity 150 passengers or more
Design a database for Ray. For each director, list his or her number and name and the year he or she was born. If the director is deceased, list the year of death.
Create an arff file with the following data types, flags, unit_id, names must be nominal and timestamps (ts) must be date
Write an SQL query to get the author of the book "The Alchemist"
Sketch an E-R diagram which reflects the above reuirements. Write a set of relational schemas and identify primary and foreign keys. Try not to include redundant schemas.
What is the order P of the B+-tree if B+-tree access structure on the key is constructed? What is the number of leaf-level blocks needed if blocks are approximately 69% full (round up for convenience)?
Compare activity (quite theoretical) of the disk (in number of bytes) required for each of both relational. Write down the advantages and inconveniences of new relational scheme.
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