Enterprise Database Management Assignment #1 - The Structured Query Language
Consider the following database schema, which is concerned with World War II capital ships.
It involves the following relations:
Classes(class, type, country, numGuns, bore, displacement)
Ships(name, class, launched)
Battles(name, date)
Outcomes(ship, battle, result)
Ships are built in "classes" from the same design, and the class is usually named for the first ship of that class. The relation Classes records the name of the class, the type ('bb' for battleship or 'be' for battlecruiser), the country that built the ship, the number of main guns, the bore (diameter of the gun barrel, in inches) of the main guns, and the displacement (weight, in tons). Relation Ships records the name of the ship, the name of its class, and the year in which the ship was launched. Relation Battles gives the name and date of battles involving these ships, and relation Outcomes gives the result (sunk, damaged, or ok) for each ship in each battle.
Some sample data for these relations is shown on the last two pages of this document.
Furthermore, assume that the data types of the above attributes are consistent with the following Standard SQL declarations:
CREATE TABLE Classes (
class CHAR(20),
type CHAR(5),
country CHAR(20),
numGuns INTEGER,
bore DECIMAL(3,1),
displacement INTEGER
);
CREATE TABLE Ships (
name CHAR(30),
class CHAR(20),
launched INTEGER
);
CREATE TABLE Battles (
name CHAR(30),
date DATE
);
CREATE TABLE Outcomes (
ship CHAR(30),
battle CHAR(30),
result CHAR(10)
);
1) Using MySQL, create the above four relations and populate them with the sample data given on the last two pages of this document.
2) Write the following queries and apply them to the above database:
a) Find the names of all ships launched prior to 1918, but call the resulting column ShipName.
b) Find the names of ships sunk in battle and the name of the battle in which they were sunk.
c) Find the names of all ships that begin with the letter "R".
d) Find the names of all ships whose name consists of three or more words (e.g., King George V).
e) Find the ships heavier than 35,000 tons.
f) List the name, displacement, and number of guns of the ships engaged in the battle of Guadalcanal.
g) List all the ships mentioned in the database. (Remember that all these ships may not appear in the Ships relation.)
h) Find the names of the ships with a 16-inch bore.
i) Find the battles in which ships of the Kongo class participated.
j) Find the countries whose ships had the largest number of guns.
Create one pdf document demonstrating your answers to the above ten MySQL queries and show the results of those queries when applied to the sample data given below.
Format your assignment according to the following formatting requirements:
1. The answer should be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides.
2. The response also include a cover page containing the title of the assignment, the student's name, the course title, and the date. The cover page is not included in the required page length.
3. Also Include a reference page. The Citations and references should follow APA format. The reference page is not included in the required page length.