SQL (30 pts): Write SQL statements for the following query using the following database Classes(cclass, type, country, numguns, bore, displacement) Ships(sname, sclass, launched) Battles(sname, 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 and bc 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.

create table classes( cclass varchar2(30) primary key, type varchar2(2), country varchar2(30), numguns integer, bore integer, displacement integer );

create table ships( sname varchar2(20) primary key, sclass varchar2(30), launched integer );

create table battles( sname varchar2(30) primary key, bdate date );

create table outcomes( ship varchar2(30), battle varchar2(30), result varchar2(10), constraint outcomes_pk primary key (ship, battle)

);

insert into classes values('Bismarck','bb','Germany',8,15,42000); insert into classes values('Iowa','bb','USA',9,16,46000); insert into classes values('Kongo','bc','Japan',8,14,32000); insert into classes values('North Carolina','bb','USA',9,16,37000); insert into classes values('Renown','bc','Gt. Britain',6,15,32000); insert into classes values('Revenge','bb','Germany',8,15,29000); insert into classes values('Tennessee','bb','USA',12,14,32000); insert into classes values('Yamato','bb','Japan',9,18,65000);

insert into ships values ('California','Tennessee',1921); insert into ships values ('Haruna','Kongo',1915); insert into ships values ('Hiei','Kongo',1914); insert into ships values ('Iowa','Iowa',1943); insert into ships values ('Kirishima','Kongo',1915); insert into ships values ('Kongo','Kongo',1913); insert into ships values ('Missouri','Iowa',1944); insert into ships values ('Musashi','Yamato',1942); insert into ships values ('New Jersey','Iowa',1943); insert into ships values ('North Carolina','North Carolina',1941); insert into ships values ('Ramillies','Revenge',1917); insert into ships values ('Renown','Renown',1916); insert into ships values ('Repulse','Renown',1916); insert into ships values ('Rasolution','Revenge',1916); insert into ships values ('Revenge','Revenge',1916); insert into ships values ('Royal Oak','Revenge',1916); insert into ships values ('Royal Sovereign','Revenge',1916); insert into ships values ('South Dakota','Tennessee',1921); insert into ships values ('Tennessee','Tennessee',1920); insert into ships values ('Washington','North Carolina',1941); insert into ships values ('Wisconsin','Iowa',1944); insert into ships values ('Yamato','Yamato',1941);

insert into battles values ('North Atlantic','10-MAY-1924'); insert into battles values ('Guadalcanal','15-NOV-1942'); insert into battles values ('North Cape','26-DEC-1943'); insert into battles values ('Surigao Strait','25-OCT-1944');

insert into outcomes values ('Bismarck','North Atlantic','sunk'); insert into outcomes values ('California','Surigao Strait','ok'); insert into outcomes values ('Duke of York','North Cape','ok'); insert into outcomes values ('Fuso','Surigao Strait','sunk'); insert into outcomes values ('Hood','North Atlantic','sunk'); insert into outcomes values ('King George V','North Atlantic','ok'); insert into outcomes values ('Kirishima','Guadalcanal','sunk'); insert into outcomes values ('Prince of Wales','Guadalcanal','damaged'); insert into outcomes values ('Prince of Wales','North Atlantic','damaged'); insert into outcomes values ('Rodney','North Atlantic','damaged'); insert into outcomes values ('Scharnhorst','North Cape','sunk'); insert into outcomes values ('South Dakota','Guadalcanal','damaged'); insert into outcomes values ('Tennessee','Surigao Strait','ok'); insert into outcomes values ('Washington','Guadalcanal','ok'); insert into outcomes values ('West Virginia','Surigao Strait','ok'); insert into outcomes values ('Yamashiro','Surigao Strait','sunk');

(f) Find the battle in which the number of ships sunk is highest