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1. Multilevel Index:
i. What is the fan-out value if multi-level index is used?
ii. How many levels are there so that top level index fits on a single block in multilevel index?
iii. How many block accesses are needed to fetch a record by using multilevel index?
iv. What is the key value of the 4th index record on the top level, assuming each index record points to the record with the highest key value in a block of the next level down?
Using your knowledge of the college environment, determine the functional dependencies that exist in the following?
CAR (Serial-No, ModConsider the given relations for database which keeps track of auto sales in car dealership.
You should choose a data storage problem of your interest and identify the different pieces of data that should be stored in database.
First, specify the foreign keys for this schema, stating any assumptions you make. Next, populate the relations with a few example tuples.
Assume a game with two players, A and B, who raise one or both hands concurrently. A wins if total number of hands raised is odd, and B wins in other way.Write down the matrix form of the game. Is there a pure strategy solution? Explain your answer..
Write a SELECT statement that returns two columns: VendorName and PaymentSum, where PaymentSum is the sum of the PaymentTotal column.
What are triggers used for, and why are they important in database systems? Provide an example of a situation where a trigger would be appropriate.
Pharmacy systems today are more efficient and user friendly when compared to the systems 20 years ago.
Input names of students from the user, terminated by ZZZ, and create a data file GRADES with records of the form.
It is not uncommon to have to access the data which reside in different tables, especially when formulating a report.
Course: data mining. Require a 7 page essay on subjects: Warehouse Architectures: the paper requires to contain information about centralized, federated, and tiered data warehouse.
Design a work breakdown structure for the task below: Designing the database, Working on the website content
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