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A file of student records contains name, gender (M or F), age (in years) and marital status (single or married) for each student. Design an algorithm that will read through the file and calculate the numbers of married men, single men, married women and single women. Print these numbers on a student summary report. If any single men are over 30 years of age, print their names and ages on a separate eligible bachelors report.
The first part is to create a database and some tables which will be appropriate for a home-budgeting application. That portion of the assignment should be completed from the MySQL console command line.
In talking about database security, some aspects to regard as are Data Integrity, Confidentiality, and Malicious Activity. Illustrate how does database security relate to data integrity?
Write the functional dependencies in the following table that concerns invoicing (an application Premiere Products in considering adding to its database), subject to the specified conditions.
Write a SELECT statement that returns three columns: InvoiceTotal From the Invoices table, 10% 10% of the value of InvoiceTotal.
Explain why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?
You are interested in analyzing some hard-to-obtain data from two separate databases. Each database contains n numerical values.
Consider the relational database described in Problem Give expressions in tuple relational calculus and domain relational calculus for each of the following queries: Find all the companies that have offices in all the cities in which company C2..
Explain thoughts on database design process this far. You have learned about first three phases of process: defining mission statement and mission objectives, analyzing current database, and creating data structures.
Design and build a prototype data warehouse using the data on Spend over £25,000 in the Science and Technology Facilities Council
Knowledge and Data Warehousing
Consider relation schema r(A,B,C,D,E, F) and a set of functional dependencies {A BCD,BCDE,BD,DA}. Calculate canonical cover for set of functional dependencies (show each step of your derivation with an explanation).
Create a database using Oracle packaged procedure
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