ZuoTi.Pro
Question

Write relational algebra formulas what will satisfy the following queries: A- What are the names of...

Write relational algebra formulas what will satisf

Write relational algebra formulas what will satisfy the following queries:

A- What are the names of all the planes that participated in a dog fight in which Hard Luck (a name of a plane) also participated?

B- What are the names of all the dogfights that must have happened entirely under 30,000 feet?

engineering   Computer-Science   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Request Professional Answer

Request Answer!

We need at least 10 more requests to produce the answer.

0 / 10 have requested this problem solution

The more requests, the faster the answer.

Request! (Login Required)

All students who have requested the answer will be notified once they are available.
Know the answer?
Add Answer to:
Write relational algebra formulas what will satisfy the following queries: A- What are the names of...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Similar Homework Help Questions

  • Give the following queries in the relational algebra using the following relational schema: Student (sid, name,...

    Give the following queries in the relational algebra using the following relational schema: Student (sid, name, age, address, email, cgpa) enrolledIn (sid, modulecode, grade) module (modulecode, modulename, credits, lecturername) a) What are the names of students enrolled in module code “cs3020”? b) Give the module code of all the modules that are taught by the teacher named “Altaf”? c) Who teaches the module with code”cs1500”? d) Give the name of all the teachers teaching the student with id”12f6778”.

  • Relational algebra pls. Appreciate it！(Queries are detailed) Consider the following relational database that stores information about...

    Relational algebra pls. Appreciate it！(Queries are detailed) Consider the following relational database that stores information about bars and customers: Drinker (name, address) Bar (name, address) Beer (name, brewer) Frequents (drinker, bar, times a week) Likes (drinker, beer) Serves (bar, beer, price) Write the following queries in relational algebra: (5 points) Find all drinkers who frequent only those bars that serve some beers they like. 5 points) Find all drinkers who frequent every bar that serves some beers they like (10...

  • This is Relational Algebra NOT SQL!!! I need the following 3 queries written in relational algebra....

    This is Relational Algebra NOT SQL!!! I need the following 3 queries written in relational algebra. Retrieve the title of all the Movies in Japanese that don't have any comment. (The language_id for Japanese is 3) Find all the movie titles where an actor called “TOM” OR an actor called “BEN" acted, AND there was another actor called “MARY” acting too. Find the actors that have movies in all the categories. (category IDs are numbered 1-16) actor actor_id number first_name...

  • Write the following queries in Relational Algebra, for the following bank schema: account (ano, bname, balance)...

    Write the following queries in Relational Algebra, for the following bank schema: account (ano, bname, balance) branch (bname, bcity, assest) customer (Cname, cstreet, ccity) loan (lno, bname, amount) deposit (cname, ano) borrower (cname, ino) -Select all loan tuples where branch name is Abha. -Select all loan tuples where branch name is Abha and loan amount less than 200000.   Please type the solution on the keyboard so that I can copy and paste

  • Express the following SQL queries in relational algebra: 2) What are the singers who have never...

    Express the following SQL queries in relational algebra: 2) What are the singers who have never scheduled the concert at Saint-Denis 2? SELECT singer FROM Show WHERE singer NOT IN (SELECT singer FROM Show S, Hall H WHERE S.hall_id = H.hall_id AND H.name = 'Saint-Denis 2')

  • Using the relational schema for the College Applications database, write relational algebra expressions that perform the...

    Using the relational schema for the College Applications database, write relational algebra expressions that perform the following problems. Complete 5 out of 6 for full credit. Apply(sID, cName, major, decision) Student(sID, sName, GPA, sizeHS) College(cName, state, enrollment) 1. List the ids and names of the students that applied to the CS Dept at MIT. 2. For students that have applied to a college, list the student’s id, name and number of different colleges the students has applied to. 3. List...

  • Given the following relational schema, write queries in SQL to answer the English questions. The Access...

    Given the following relational schema, write queries in SQL to answer the English questions. The Access Database for the schema is available, as is a DDL file. It is also available on the MySQL server. You must only submit the SQL for your answers. You can get your answers without using a DBMS or by using Access or MySQL. Customer(cid: integer, cname: string, address: string, city: string, state: string) Product(pid: integer, pname: string, price: currency, inventory: integer) Shipment(sid: integer, cid:...

  • 1. Given the following database schema owner(owner_name, age) owns(owner_name, num_cats) Write relational algebra for the following:...

    1. Given the following database schema owner(owner_name, age) owns(owner_name, num_cats) Write relational algebra for the following: Find the name of all owners above the age of 50 Find the name of all owners who own fewer than 5 cats Find the name of all owners who are below the age of 24 and own more than 4 cats 2. Given the following database schema person(name, age, account_id) account(account_id, balance) Write a relational algebra for the following Find the name of...

  • Given the following relational schema, write queries in SQL to answer the English questions. There is...

    Given the following relational schema, write queries in SQL to answer the English questions. There is a shipment database on the MySQL server. You can also use the DDL for MySQL. You must only submit the SQL for your answers but you can include the query output as well to help the TA with marking. Customer(cid: integer, cname: string, address: string, city: string, state: string) Product(pid: integer, pname: string, price: currency, inventory: integer) Shipment(sid: integer, cid: integer, shipdate: Date/Time) ShippedProduct(sid:...

  • Given the following relational schema, write queries in SQL to answer the English questions. There is...

    Given the following relational schema, write queries in SQL to answer the English questions. There is a shipment database on the MySQL server. You can also use the DDL for MySQL. You must only submit the SQL for your answers but you can include the query output as well to help the TA with marking. Customer(cid: integer, cname: string, address: string, city: string, state: string) Product(pid: integer, pname: string, price: currency, inventory: integer) Shipment(sid: integer, cid: integer, shipdate: Date/Time) ShippedProduct(sid:...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT