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What is the difference between a conceptual, a logical, and a physical data model? Where do relationship diagrams (RDs) and entity/relationship diagrams (ERDs) fit in?
in the response to this forum note that you have successfully installed the product and what you experienced in the
Explain the statement that relational algebra operators can be com-posed. Why is the ability to compose operators important?
Select an appropriate statistical measure to compare consistency of sales. Make the calculations and write a report. In your calculations, include the mean sales for each salesperson.
Write a program that- Reads the data from the file into an array of structure when the form is loaded
1. design an relational model rm model of a database db that will be useful for each of the chosen enterprises. hint
What is a subquery? When is it used? Does the RDBMS deal with subqueries any differently from normal queries? Illustrate with examples different types of sub-query and co-related subqueries (nested etc).
use the contents of figure 1 to work problems 1-3.1.write the business rules that govern the relationship between agent
Complete development of a relational database. Create the tables in 3NF needed to implement your DB schema.
What type of entertainment events are the most popular? Has this always been the case or has there been a shift in recent years - Which area of venues used for organizing events is most popular in past 10 years?
Excplain Data Collection and Management Techniques for a Qualitative Research Plan
Speculate the data exchange and data management trends that may take place in the next five to ten (5-10) years
how to optimizing sql server query performance? when optimizing your database server you need to tune the performance
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