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In this class, we've stressed the importance of various system analysis and design tools and techniques. By now you should have a "toolbox" full of useful design and analysis tools. List the tools in your toolbox and then write one short paragraph on how you can/will apply them in your careers, lives, etc.
Assume that data warehouse consists of three dimensions time, customer, and cell phone plan, and two measures number of calls and cell phone bill. Sketch a schema diagram for above data warehouse using star schema.
The relations given below keep track of airline flight information:Flights(flno: integer, from: string, to: string, distance:integer, departs: time, arrives: time, price: real)Aircraft(aid: integer, aflame: string, cruisingrange: integer)
Estimate the height of the B+ tree. (Giving a range of heights is fine.) Also estimate the amount of memory needed to store the tree, including leaves but not including the posting lists themselves.
Investigate how databases solve multiple concurrent data management issues comprising lost updates, deadlocks and different kinds of lock management styles.
Create a report which identifies five most expensive bicycles. The report must list bicycles in descending order from most expensive to lease expensive, the quantity on hand for each, and the markup percentage for each.
Construct a scenario leading to the worst-case performance of the FIFO buffer replacement policy - determine if it is conflict serializable or not
You are asked to create a GIS database of information about Vietnam at scale of 1:100,000. Database will include the following: Which of these features are best represented by raster model? Explain why?
Consider a video game store. For each game, the database contains information about title, producing company name, designer(s) name(s), version of the game, type of the game and characters in the game.
What is the functionality of the tool and what is the actual running environment (software and hardware) of the tool - how will you evaluate the tool based on your own experience?
Give examples of binary 1:N relationships, for (a) an optional-to-optional relationship, (b) an optional-to-mandatory relationship,
Print to screen the 'below average' if minimum unit_cost is 10 for the same product (use sh.costs table)
Determine the technical provisions that would be required to ensure data integrity. Evaluate whether the use of a distributed DBMS structure is appropriate.
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