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1. When building a database, an organization must carefully consider these topics: content, access, logical structure, and physical organization. Elaborate on these points.
2. Outline some specific steps an organization might take to perform data cleansing to ensure the accuracy and completeness of its customer database before adding this data to a data warehouse. How would you decide when the data is accurate enough?
vehiclerentaloz data warehousevehiclerentaloz is a large chain of vehicle rental company over 500 stores distributed
virtual private databasesearching web specially oracle and microsoft websites and via talking with any database
Formulate and list the functional and multi-valued dependencies. Show how you apply the steps to arrive at the tables and at each iteration, explain whether each derived table is already in BCNF and 4NF (if applicable).
Describe how you have represented weak entities, if any exist and describe how you have represented super type and subtype entities, if any exist.
Suppose that we replace the wait and signal operations of monitors with a single construct await(B), where B is a general Boolean expression. Write a monitor using this scheme to implement the readers--writers problem.
Create an ERD that shows the entities, attributes, relationships, cardinality and optionality that describe the booking of a room by a guest
MAN6905 - Databases and Business Intelligence - Choose TWO large datasets and analyse them with pivot tables. Document the insights and trends that you find during the analysis.
Assume that the minimum support threshold is equal to 10%. How many closed frequent itemsets will be discovered from data set 1 amd Which data set will produce frequent itemsets with high support?
Summarize your paper by describing the database systems in your workplace, identifying which database systems and architecture they fall under.
Please briefly explain whether the following schedule has a deadlock. Your grade depends on both your answer and explanation and please briefly explain which transactions satisfy two-phase locking protocol and which don't.
Create table design metadata specifications in a Microsoft® Excel® spreadsheet based on your ERD. Indicate primary keys, foreign keys, and new attributes as in the entity relationship diagram.
Create tables as necessary to eliminate multivalued dependencies, if any.
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