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Explain Candidate key?
Candidate Key - A candidate key is a minimal superkey, that can be used to uniquely identify a tuple in the relation.
DBMS, Programming
Assignment A restaurant is designing a database to keep track of customer services. A customer is defined as a customer ID, name, address and a telephone number. Customers are served by employees. Each employee is define ...
Select * From E, D, P WHERE E.dept=D.dept AND D.city=P.city AND D.budget>1M AND P.priority=A; Assuming relations have the same size and uniform distributions, what is the best plan with Nested Loop joins only? Write it a ...
Students will select a situation or problem from their company as a course project that can be solved using a database system. Using MS Access, or MS SQL Server Express, students will create a relational database model o ...
Project Outline and Requirements Provide a brief description of the organization (can be hypothetical) that will be used as the basis for the projects in the course. Include company size, location(s), and other pertinent ...
Question : a) Suppose you are a marathon runner that can run a maximum of n miles on a single bottle of water. You are given a map of your marathon route with all the water stations marked. Design an efficient algorithm ...
SQL Assignment In these exercises, you'll enter and run your own SELECT statements. You will use the MyGuitarShop database for these queries. If you do not already have the MyGuitarShop database, the SQL script and the i ...
Real Time Analytics - Data Analytics Assignment - This is a business analytics project aimed at generating innovative analytics solutions for a Global Food Consulting firm working in the area of Animal agriculture and fa ...
Analytic Report: Purpose: The purpose of this task is to provide students with practical experience in working in teams to write a Data Analytical report to provide useful insights, pattern and trends in the chosen/given ...
SQL injection on a search The way Search performs its task is by executing the following query (in a php script): $var=stripslashes($_POST['search']); $query = "SELECT username from lab1_login where use ...
This is a starting out with visual basic programming problem, meaning its a basic programming nothing advanced. Question: Add a linq statement to the combo box text-changed event to dispaly the city field of the selected ...
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