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Q1) There are many kinds of relationships in a design model of a database. The most common are one-to-one (1:1), one-to-many (1:N), and many-to-many (N:M). Some of the entity types can be ID-Dependent, Strong, Weak, or Subtype Entities.
1. Why is it important to classify each of these types in an ERD Model?
What is meant by cardinality of a relationship? Your answer requires to be thorough and specific. Be sure to include the two types of cardinality
creating database structure using SQL
Write down the SQL code in order to carrying out the following requests. Display all the data in each of the four tables. Do not display the foreign key columns.
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?
Create a report which identifies five most expensive bicycles. The report must list bicycles in descending order from most expensive to lease expensive, the quantity on hand for each, and the markup percentage for each.
Design a Database schema
Assume a game with two players, A and B, who raise one or both hands concurrently. A wins if total number of hands raised is odd, and B wins in other way.Write down the matrix form of the game. Is there a pure strategy solution? Explain your answer..
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.
What criteria would you use in selecting a life-cycle model for the project?
Create a structurally sound relational database schema showing the minimum number of fields, tables, and relationships between the tables.
Design and build a prototype data warehouse using the data on Spend over £25,000 in the Science and Technology Facilities Council
ER diagram for the Baxter Aviation database
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