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Using the class example database (SQLFUN), create the required SQL statements to produce the following results:
Use a cross join to create a table having all combinations of Ice cream: chocolate, vanilla, coffee, strawberry.
What about giving same name to attributes which are in different tables but are not same? For instance, "Description" in both a Course table and a Classroom table.
Determine how you will collect the data elements needed for this measure (i.e. how will you collect the data elements needed to calculate the measure). Describe what those data elements are, and how they will be collected.
Imagine that you have been hired to fulfill their need of enhancing the data repository for their current reservation processing system. Upon reviewing the system, you find that the data structure holds redundant data and that this structure lacks..
Prove that the algorithm for decomposing a relation schema with a set of FDs into a collection of BCNF relation schemas as described in Section 19.6.1 is correct (i.e., it produces a collection of BCNF relations, and is lossless-join) and terminates.
the task in this project is to design a normalized database that could be used to collect and store information for a
Explain the information-gathering techniques and design methods you would suggest to use for project. Recognize the key factors that help ensure the information required for the project.
Explain the statement that relational algebra operators can be com-posed. Why is the ability to compose operators important?
Map the ERD to create the relational model corresponding to the described application. Basically, list the CREATE TABLE statements with the attribute names, and appropriate data types.
Calculate a canonical cover for above set of functional dependencies (show each step of your derivation with an explanation).
List the first and last names of any customers who have bought all of the items. (This does not need to be as part of a single purchase).
Analyse and comprehend a provided ER diagram and Database Schema and to implement a database based on the provided ER diagram and Database Schema
Sketch hash table of length 11 which results from using hash function h(i) = (2i + 5) mod 11, to hash the keys 12, 44, 13, 88, 23, 94, 11, and 39,
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