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Q1) The relations given below keep track of airline flight information:
Flights(flno: integer, from: string, to: string, distance: integer, departs: time, arrives: time, price: real) Aircraft(aid: integer, aflame: string, cruisingrange: integer) Certifled( eid: integer, aid: integer) Employees( eid: integer, ename: string, salary: integer)
Note that the Employees relation describes pilots and other kinds of employees as well; every pilot is certified for some aircraft, and only pilots are certified to fly. Write each of the following queries in SQL.
You have a company, specializing in managing technology solutions. you have ben just hired by big firm to execute a well-planned strategy.
Assignment 5: Logical Design, Part II, Explain the problems associated with data redundancy as it pertains to effectively using information for reporting and analysis.
Start with LAN on RTA and proceed clockwise. Determine the number that how many total valid host addresses will be wasted on WAN links?
Compute the functional dependencies which exist in following table. After determining the functional dependencies, transform this table to an equivalent collection of the tables which are in third normal form.
MGMT321 Group Project : You were hired as an analyst to develop a new information system to automate the payroll transactions in a mid-size organization. The proposed system will contain employees’ data and interface with the organization’s General ..
Create a function that returns the day of the week for a specified date. Create a trigger that displays the message "Emp table updated" when an update to the employee table increases the employee's basic salary.
At this point in the design process, you would have a detailed physical schema created for a database. How would you approach converting your schema into a database, complete with sample data? Explain your approach in two to three paragraphs.
Create a database from scratch that contains, at a minimum, the elements listed below
Implement a database of courses and students for a school.
Practice on topic of Normalization
Explain why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?
Create and run the following sql queries and submit the screen shot of your result. Also submit the file lab_06_03. sql
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