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STAFF_Meeting(EmployeeName, ProjectName, Date)
The rows of this table record the fact that an employee from a particular project attended a meeting on a given date. Assume that a project meets a most once per day. Also, assume that only one employee represents a given project, but that employees can be assigned to multiple projects.
a. State the functional dependencies in STAFF_MEETING
b. Transform this table into one or more tables in BCNF. State the primary keys, candidate keys, foreign keys, and referential integrity constraints.
c. Is your design in part B an improvement over the original table? What advantages and disadvantages does it have?
Give a primary key for each relation. Are there any relations for which there is an alternate candidate key which you have not chosen as the primary key? Why or why not?
Express given five loosely described problems carefully in { Instance, Question } form as utilized in "Computers and Intractability". Determine that a list of n numbers has no duplicates.
Assume that the value of attribute Z of the last record in the relation is changed from z3 to z2. Now list all the functional dependenciesthat this relation instance satis?es.
Write a CREATE TABLE statement for the EMPLOYEE TABLE. Email is required and is an alternate key, and the default value of Department is Human Resources. Cascade updates but not deletions from DEPARTMENT to EMPLOYEE.
hi there i need to start the assignment for data warehouse where i need to define assignmentyou are required to design
In short, there is a need for a more convenient database system. The machine on which the database is currently running is powerful enough to host the database server. The database should be accessible from four checkout stations that process rent..
a) Given a particular blog post, what are all of the comments associated with it?yes b) What are the blog posts for a particular user?
Create a link list in ADT c to maintain employee information like name,empid,basic salary and address.1.add employee info to the list if the empid is valid.
Instructions: You can use any source you prefer, the text, Internet, etc. The answers should not take more than 1 - 2 paragraphs of text, please submit a word processing document, please make sure it's compatible with MS Word.
identify and explain the differences between a stack and a queue data structure and provide examples of the basic
The title of the ?rst record in the previous set, and the primary key of the ?rst record in the previous set.
database systems1. list the acid properties. explain the usefulness of each.2. consider the following two transactions
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