Flight-Distance Database FLIGHT (Flight#, Origin, Destination, Mileage) FLIGHT Flight# DL507 DL123 DL723 DL577 DL5219 DL357 DL555 DL5237 DL5271 Origin Seattle Chicago Boston Denver Minneapolis Chicago Denver Cleveland Chicago Destination Denver Dallas St. Louis Los Angeles St. Louis Dallas Houston St. Louis Cleveland Mileage 1537 1058 1214 1100 580 1058 1100 580 300 Business Rules 1. Each flight has an origin and a destination 2. The mileage for each trip is calculated by the distance between the origin and the destination

Q: Display the list of students who are involved in the IT club Display the details of all the…

A: First get the studid from Club table and then get those Student details This can be done using inner…

Q: N:M relationships  a.) require that the primary key from each table is deleted.   b.) require that a…

A: Here is the solution;

Q: Please look at this schema. Please convert this into a relational schema (you can give the answer as…

A: Solution- Data Model Diagram to Relational Database Conversion Rules: 1. Each entity in Data Model…

Q: 4. In a company, employees involved in many projects, and each project may have many employees…

A: Please refer below for your reference:

Q: indicate the changes(using the shorthand representation)that you would need to make to the original…

A: ITEM_ID which is unique and primary key in ITEM table can act as a identifier for ITEM. Using…

Q: What is the role of a "self-referencing" table in a relational database model?

A: A relational database model "self-referencing" table is one that has a foreign key column that…

Q: Computer Engineering / Salesforce Design a general Salesforce query to fetch all fields of a object…

A: query: SELECT FIELDS(ALL) FROM OBJECT LIMIT 200

Q: What data types would you use for the attributes in this entity? How would you code a CREATE TABLE…

A: In a database management system (DBMS), an attribute is a piece of data that describes an entity.…

Q: What features do normalization procedures that use functional dependencies have?

A: Functional reliance: Between two characteristics—primary key attributes and non-key attributes…

Q: What are the benefits of normalisation methods that use functional dependencies?

A: Normalization is the process of organizing the data in the database. Normalization is used to…

Q: PLZ help with the following: Translate your ER diagram into a relational schema in the form of SQL…

A: E-R diagram is given with different attributes. From this we will create tables

Q: domain relational calculus;

A: Domain Relational calculus: It is a non procedural query language that describes a query but does…

Q: How does a view maintain data abstraction in a relational database?

A: In a relational database, data abstraction refers to hiding specific details of storing and…

Q: b) Consider the relational table PARTSUPP of the TPCHR sample database. Find SELECT statements that…

A: The solution is given below:

Q: In the Testa EV database described in the previous question, fill in the blanks in the following…

A: The solution is given below for the above given question:

Q: All parts of this question use the following database schema: Flights(flno, from, to, distance)…

A: SELECT MIN(salary),e.ename FROM Aircraft a JOIN Certified c ON a.aid=c.aid JOIN Employees  e ON…

Approaches used in acquiring Information System

An Information System (IS) is the combination of hardware, communication network, people, software, and data resources that collects, manipulates, and disseminates information to provide feedback to address the objective. For organizations and businesses, the information system is a vital component.