I am not sure how to write the commands for these

. Consider the following relational schema and briefly answer the question that follows:

Emp(eid: integer, ename: string, age: integer, salary: real)

Works(eid: integer, did: integer, pct_time: integer)

Dept(did: integer, budget: real, managerid: integer)

Print the name of each employee whose salary exceeds the budget of all the departments that he or she works in.

Define a table constraint on Emp that will ensure that every employee makes at least

create table emp( eid numeric(9,0) primary key, ename varchar(30), age numeric(3,0), salary numeric(10,2) ); create table dept( did numeric(2,0) primary key, dname varchar(20), budget numeric(10,2), managerid numeric(9,0), foreign key(managerid) references emp(eid) ); create table works( eid numeric(9,0), did numeric(2,0), pct_time numeric(3,0), primary key(eid,did), foreign key(eid) references emp, foreign key(did) references dept );

INSERT INTO dept() VALUES (1,'Hardware',1048572.12,141582651); INSERT INTO dept() VALUES (2,'Operations',12099101.00,287321212); INSERT INTO dept() VALUES (3,'Legal',222988.13,248965255); INSERT INTO dept() VALUES (4,'Marketing',538099.54,548977562); INSERT INTO dept() VALUES (5,'Software',400011.12,141582651); INSERT INTO dept() VALUES (6,'Production',12099101.00,578875478); INSERT INTO dept() VALUES (7,'Shipping',5.00,489456522);

INSERT INTO emp () VALUES (142519864,"Susan Martin",39,56990); INSERT INTO emp () VALUES (242518965,"James Smith",68,27099); INSERT INTO emp () VALUES (141582651,"Mary Johnson",44,94011); INSERT INTO emp () VALUES (011564812,"John Williams",35,74098); INSERT INTO emp () VALUES (254099823,"Patricia Jones",28,42783); INSERT INTO emp () VALUES (356187925,"Robert Brown",28,35431); INSERT INTO emp () VALUES (489456522,"Linda Davis",26,25971); INSERT INTO emp () VALUES (287321212,"Michael Miller",62,131072); INSERT INTO emp () VALUES (248965255,"Barbara Wilson",48,95021); INSERT INTO emp () VALUES (159542516,"Matt Nelson",33,48990); INSERT INTO emp () VALUES (090873519,"Elizabeth Taylor",27,33055); INSERT INTO emp () VALUES (486512566,"David Anderson",20,25199); INSERT INTO emp () VALUES (619023588,"Jennifer Thomas",24,34654); INSERT INTO emp () VALUES (112348546,"Joseph Thompson",26,24998); INSERT INTO emp () VALUES (115987938,"Christopher Garcia",60,24998); INSERT INTO emp () VALUES (132977562,"Angela Martinez",31,24998); INSERT INTO emp () VALUES (269734834,"Rick Carter",38,24998); INSERT INTO emp () VALUES (280158572,"Margaret Clark",40,24998); INSERT INTO emp () VALUES (301221823,"Juan Rodriguez",30,32175); INSERT INTO emp () VALUES (318548912,"Ann Mitchell",23,32175); INSERT INTO emp () VALUES (320874981,"Daniel Lee",23,32175); INSERT INTO emp () VALUES (322654189,"Lisa Walker",38,32175); INSERT INTO emp () VALUES (348121549,"Trey Phillips",69,32175); INSERT INTO emp () VALUES (351565322,"Nancy Allen",30,39910); INSERT INTO emp () VALUES (451519864,"Mark Young",34,39910); INSERT INTO emp () VALUES (455798411,"Luis Hernandez",44,39910); INSERT INTO emp () VALUES (550156548,"George Wright",42,41008); INSERT INTO emp () VALUES (552455318,"Ana Lopez",35,41008); INSERT INTO emp () VALUES (556784565,"Kenneth Hill",81,41008); INSERT INTO emp () VALUES (567354612,"Karen Scott",70,39910); INSERT INTO emp () VALUES (573284895,"Steven Green",29,39910); INSERT INTO emp () VALUES (574489456,"Betty Adams",39,39910); INSERT INTO emp () VALUES (015645489,"Daniel Evans",25,40312); INSERT INTO emp () VALUES (015487874,"Gene Edwards",51,41008); INSERT INTO emp () VALUES (054879887,"Dorthy Lewis",33,41008); INSERT INTO emp () VALUES (098784544,"Eric Collins",23,41008); INSERT INTO emp () VALUES (074454898,"Scott Bell",23,70100); INSERT INTO emp () VALUES (156489494,"Gil Richardson",32,70100); INSERT INTO emp () VALUES (179887498,"Dorthy Howard",28,40312); INSERT INTO emp () VALUES (156465461,"Eric Cooper",26,24998); INSERT INTO emp () VALUES (128778823,"William Ward",33,24998); INSERT INTO emp () VALUES (178949844,"Chad Stewart",29,24998); INSERT INTO emp () VALUES (298489484,"Lisa Gray",31,24998); INSERT INTO emp () VALUES (274878974,"Harry Watson",30,24998); INSERT INTO emp () VALUES (267894232,"Paul Hall",25,24998); INSERT INTO emp () VALUES (254898318,"Gim Rogers",25,32175); INSERT INTO emp () VALUES (489221823,"Richard Jackson",33,32996); INSERT INTO emp () VALUES (548977562,"Donald King",43,92048); INSERT INTO emp () VALUES (289562686,"Thomas Robinson",34,32175); INSERT INTO emp () VALUES (291795563,"Haywood Kelly",36,32175); INSERT INTO emp () VALUES (578875478,"Edward Baker",50,101071); INSERT INTO emp () VALUES (051135593,"Maria White",22,24998); INSERT INTO emp () VALUES (060839453,"Charles Harris",24,24998); INSERT INTO emp () VALUES (334568786,"William Moore",32,32175); INSERT INTO emp () VALUES (355548984,"Tom Murphy",41,32175); INSERT INTO emp () VALUES (310454876,"Milo Brooks",22,39910); INSERT INTO emp () VALUES (390487451,"Mark Coleman",42,39910); INSERT INTO emp () VALUES (454565232,"Louis Jenkins",20,39910); INSERT INTO emp () VALUES (141582657,"Stanley Browne",23,14093);

INSERT INTO `works` () VALUES (142519864, 2, 100); INSERT INTO `works` () VALUES (242518965, 1, 100); INSERT INTO `works` () VALUES (141582651, 1, 50); INSERT INTO `works` () VALUES (141582651, 5, 50); INSERT INTO `works` () VALUES (141582657, 1, 25); INSERT INTO `works` () VALUES (141582657, 5, 75); INSERT INTO `works` () VALUES (011564812, 3, 100); INSERT INTO `works` () VALUES (254099823, 3, 100); INSERT INTO `works` () VALUES (356187925, 2, 100); INSERT INTO `works` () VALUES (489456522, 7, 100); INSERT INTO `works` () VALUES (287321212, 2, 100); INSERT INTO `works` () VALUES (248965255, 3, 100); INSERT INTO `works` () VALUES (159542516, 4, 100); INSERT INTO `works` () VALUES (090873519, 2, 100); INSERT INTO `works` () VALUES (486512566, 4, 100); INSERT INTO `works` () VALUES (619023588, 1, 100); INSERT INTO `works` () VALUES (489221823, 2, 100); INSERT INTO `works` () VALUES (548977562, 4, 100); INSERT INTO `works` () VALUES (578875478, 6, 100); INSERT INTO `works` () VALUES (051135593, 2, 100); INSERT INTO `works` () VALUES (060839453, 2, 100); INSERT INTO `works` () VALUES (112348546, 2, 100); INSERT INTO `works` () VALUES (115987938, 2, 100); INSERT INTO `works` () VALUES (132977562, 2, 100); INSERT INTO `works` () VALUES (269734834, 2, 100); INSERT INTO `works` () VALUES (280158572, 2, 100); INSERT INTO `works` () VALUES (301221823, 2, 100); INSERT INTO `works` () VALUES (318548912, 2, 100); INSERT INTO `works` () VALUES (320874981, 2, 100); INSERT INTO `works` () VALUES (322654189, 2, 100); INSERT INTO `works` () VALUES (348121549, 2, 100); INSERT INTO `works` () VALUES (351565322, 2, 100); INSERT INTO `works` () VALUES (451519864, 2, 100); INSERT INTO `works` () VALUES (455798411, 2, 100); INSERT INTO `works` () VALUES (550156548, 2, 50); INSERT INTO `works` () VALUES (552455318, 2, 25); INSERT INTO `works` () VALUES (556784565, 2, 25); INSERT INTO `works` () VALUES (567354612, 2, 75); INSERT INTO `works` () VALUES (573284895, 2, 50); INSERT INTO `works` () VALUES (574489456, 2, 50); INSERT INTO `works` () VALUES (015645489, 6, 100); INSERT INTO `works` () VALUES (015487874, 6, 100); INSERT INTO `works` () VALUES (054879887, 6, 100); INSERT INTO `works` () VALUES (098784544, 6, 100); INSERT INTO `works` () VALUES (074454898, 6, 100); INSERT INTO `works` () VALUES (156489494, 6, 100); INSERT INTO `works` () VALUES (179887498, 6, 100); INSERT INTO `works` () VALUES (156465461, 6, 100); INSERT INTO `works` () VALUES (128778823, 6, 100); INSERT INTO `works` () VALUES (178949844, 6, 100); INSERT INTO `works` () VALUES (298489484, 6, 100); INSERT INTO `works` () VALUES (274878974, 6, 100); INSERT INTO `works` () VALUES (267894232, 6, 100); INSERT INTO `works` () VALUES (254898318, 6, 100); INSERT INTO `works` () VALUES (289562686, 6, 100); INSERT INTO `works` () VALUES (291795563, 6, 100); INSERT INTO `works` () VALUES (334568786, 6, 100); INSERT INTO `works` () VALUES (355548984, 6, 100); INSERT INTO `works` () VALUES (310454876, 6, 100); INSERT INTO `works` () VALUES (390487451, 6, 100); INSERT INTO `works` () VALUES (454565232, 6, 50);

2. Consider the following relational schema and briefly answer the question that follows:

Flights(flno: integer, from: string, to: string, distance: integer, departs: time, arrives: time, price:integer)

Aircraft(aid: integer, aname: string, cruisingrange: integer)

Certified(eid: integer, aid: integer )

Employees(eid: integer, ename: string, salary: integer)

For all aircraft with cruisingrange over 1,000 miles, find the name of the aircraft and the

average salary of all pilots certified for this aircraft.

Find the names of pilots certified for some Boeing aircraft.

A customer wants to travel from Madison to New York with no more than two changes

of flight. List the choice of departure times from Madison if the customer wants to arrive

in New York by 6 p.m.

Compute the difference between the average salary of pilots and the average salary of all employees (including pilots).

For each pilot who is certified for more than three aircraft, find the eid and the maximum

cruisingrange of the aircraft that he or she is certified for.

Find the names of pilots whose salary is less than the price of the cheapest route from

Los Angeles to Honolulu.

create table flights( flno numeric(4,0) primary key, origin varchar(20), destination varchar(20), distance numeric(6,0), departs datetime, arrives datetime, price numeric(7,2) ); create table aircraft( aid numeric(9,0) primary key, aname varchar(30), cruisingrange numeric(6,0) ); create table employees( eid numeric(9,0) primary key, ename varchar(30), salary numeric(10,2) ); create table certified( eid numeric(9,0), aid numeric(9,0), primary key(eid,aid), foreign key(eid) references employees(eid), foreign key(aid) references aircraft(aid) );

INSERT INTO aircraft () VALUES (1,"Boeing 747-400",8430); INSERT INTO aircraft () VALUES (2,"Boeing 737-800",3383); INSERT INTO aircraft () VALUES (3,"Airbus A340-300",7120); INSERT INTO aircraft () VALUES (4,"British Aerospace Jetstream 41",1502); INSERT INTO aircraft () VALUES (5,"Embraer ERJ-145",1530); INSERT INTO aircraft () VALUES (6,"SAAB 340",2128); INSERT INTO aircraft () VALUES (7,"Piper Archer III",520); INSERT INTO aircraft () VALUES (8,"Tupolev 154",4103); INSERT INTO aircraft () VALUES (16,"Schwitzer 2-33",30); INSERT INTO aircraft () VALUES (9,"Lockheed L1011",6900); INSERT INTO aircraft () VALUES (10,"Boeing 757-300",4010); INSERT INTO aircraft () VALUES (11,"Boeing 777-300",6441); INSERT INTO aircraft () VALUES (12,"Boeing 767-400ER",6475); INSERT INTO aircraft () VALUES (13,"Airbus A320",2605); INSERT INTO aircraft () VALUES (14,"Airbus A319",1805); INSERT INTO aircraft () VALUES (15,"Boeing 727",1504);

INSERT INTO employees () VALUES (242518965,"James Smith",120433); INSERT INTO employees () VALUES (141582651,"Mary Johnson",178345); INSERT INTO employees () VALUES (011564812,"John Williams",153972); INSERT INTO employees () VALUES (567354612,"Lisa Walker",256481); INSERT INTO employees () VALUES (552455318,"Larry West",101745); INSERT INTO employees () VALUES (550156548,"Karen Scott",205187); INSERT INTO employees () VALUES (390487451,"Lawrence Sperry",212156); INSERT INTO employees () VALUES (274878974,"Michael Miller",99890); INSERT INTO employees () VALUES (254099823,"Patricia Jones",24450); INSERT INTO employees () VALUES (356187925,"Robert Brown",44740); INSERT INTO employees () VALUES (355548984,"Angela Martinez",212156); INSERT INTO employees () VALUES (310454876,"Joseph Thompson",212156); INSERT INTO employees () VALUES (489456522,"Linda Davis",127984); INSERT INTO employees () VALUES (489221823,"Richard Jackson",23980); INSERT INTO employees () VALUES (548977562,"William Ward",84476); INSERT INTO employees () VALUES (310454877,"Chad Stewart",33546); INSERT INTO employees () VALUES (142519864,"Betty Adams",227489); INSERT INTO employees () VALUES (269734834,"George Wright",289950); INSERT INTO employees () VALUES (287321212,"Michael Miller",48090); INSERT INTO employees () VALUES (552455348,"Dorthy Lewis",92013); INSERT INTO employees () VALUES (248965255,"Barbara Wilson",43723); INSERT INTO employees () VALUES (159542516,"William Moore",48250); INSERT INTO employees () VALUES (348121549,"Haywood Kelly",32899); INSERT INTO employees () VALUES (090873519,"Elizabeth Taylor",32021); INSERT INTO employees () VALUES (486512566,"David Anderson",743001); INSERT INTO employees () VALUES (619023588,"Jennifer Thomas",54921); INSERT INTO employees () VALUES (015645489,"Donald King",18050); INSERT INTO employees () VALUES (556784565,"Mark Young",205187); INSERT INTO employees () VALUES (573284895,"Eric Cooper",114323); INSERT INTO employees () VALUES (574489456,"William Jones",105743); INSERT INTO employees () VALUES (574489457,"Milo Brooks",20);

INSERT INTO flights () VALUES (99,"Los Angeles","Washington D.C.",2308,'2005/04/12 09:30','2005/04/12 21:40',235.98); INSERT INTO flights () VALUES (13,"Los Angeles","Chicago",1749,'2005/04/12 08:45','2005/04/12 20:45',220.98); INSERT INTO flights () VALUES (346,"Los Angeles","Dallas",1251,'2005/04/12 11:50','2005/04/12 19:05',225.43); INSERT INTO flights () VALUES (387,"Los Angeles","Boston",2606,'2005/04/12 07:03','2005/04/12 17:03',261.56); INSERT INTO flights () VALUES (7,"Los Angeles","Sydney",7487,'2005/04/12 22:30','2005/04/14 6:10',1278.56); INSERT INTO flights () VALUES (2,"Los Angeles","Tokyo",5478,'2005/04/12 12:30','2005/04/13 15:55',780.99); INSERT INTO flights () VALUES (33,"Los Angeles","Honolulu",2551,'2005/04/12 09:15','2005/04/12 11:15',375.23); INSERT INTO flights () VALUES (34,"Los Angeles","Honolulu",2551,'2005/04/12 12:45','2005/04/12 15:18',425.98); INSERT INTO flights () VALUES (76,"Chicago","Los Angeles",1749,'2005/04/12 08:32','2005/04/12 10:03',220.98); INSERT INTO flights () VALUES (68,"Chicago","New York",802,'2005/04/12 09:00','2005/04/12 12:02',202.45); INSERT INTO flights () VALUES (7789,"Madison","Detroit",319,'2005/04/12 06:15','2005/04/12 08:19',120.33); INSERT INTO flights () VALUES (701,"Detroit","New York",470,'2005/04/12 08:55','2005/04/12 10:26',180.56); INSERT INTO flights () VALUES (702,"Madison","New York",789,'2005/04/12 07:05','2005/04/12 10:12',202.34); INSERT INTO flights () VALUES (4884,"Madison","Chicago",84,'2005/04/12 22:12','2005/04/12 23:02',112.45); INSERT INTO flights () VALUES (2223,"Madison","Pittsburgh",517,'2005/04/12 08:02','2005/04/12 10:01',189.98); INSERT INTO flights () VALUES (5694,"Madison","Minneapolis",247,'2005/04/12 08:32','2005/04/12 09:33',120.11); INSERT INTO flights () VALUES (304,"Minneapolis","New York",991,'2005/04/12 10:00','2005/04/12 1:39',101.56); INSERT INTO flights () VALUES (149,"Pittsburgh","New York",303,'2005/04/12 09:42','2005/04/12 12:09',116.50);

INSERT INTO certified () VALUES (567354612,1); INSERT INTO certified () VALUES (567354612,2); INSERT INTO certified () VALUES (567354612,10); INSERT INTO certified () VALUES (567354612,11); INSERT INTO certified () VALUES (567354612,12); INSERT INTO certified () VALUES (567354612,15); INSERT INTO certified () VALUES (567354612,7); INSERT INTO certified () VALUES (567354612,9); INSERT INTO certified () VALUES (567354612,3); INSERT INTO certified () VALUES (567354612,4); INSERT INTO certified () VALUES (567354612,5); INSERT INTO certified () VALUES (552455318,2); INSERT INTO certified () VALUES (552455318,14); INSERT INTO certified () VALUES (550156548,1); INSERT INTO certified () VALUES (550156548,12); INSERT INTO certified () VALUES (390487451,3); INSERT INTO certified () VALUES (390487451,13); INSERT INTO certified () VALUES (390487451,14); INSERT INTO certified () VALUES (274878974,10); INSERT INTO certified () VALUES (274878974,12); INSERT INTO certified () VALUES (355548984,8); INSERT INTO certified () VALUES (355548984,9); INSERT INTO certified () VALUES (310454876,8); INSERT INTO certified () VALUES (310454876,9); INSERT INTO certified () VALUES (548977562,7); INSERT INTO certified () VALUES (142519864,1); INSERT INTO certified () VALUES (142519864,11); INSERT INTO certified () VALUES (142519864,12); INSERT INTO certified () VALUES (142519864,10); INSERT INTO certified () VALUES (142519864,3); INSERT INTO certified () VALUES (142519864,2); INSERT INTO certified () VALUES (142519864,13); INSERT INTO certified () VALUES (142519864,7); INSERT INTO certified () VALUES (269734834,1); INSERT INTO certified () VALUES (269734834,2); INSERT INTO certified () VALUES (269734834,3); INSERT INTO certified () VALUES (269734834,4); INSERT INTO certified () VALUES (269734834,5); INSERT INTO certified () VALUES (269734834,6); INSERT INTO certified () VALUES (269734834,7); INSERT INTO certified () VALUES (269734834,8); INSERT INTO certified () VALUES (269734834,9); INSERT INTO certified () VALUES (269734834,10); INSERT INTO certified () VALUES (269734834,11); INSERT INTO certified () VALUES (269734834,12); INSERT INTO certified () VALUES (269734834,13); INSERT INTO certified () VALUES (269734834,14); INSERT INTO certified () VALUES (269734834,15); INSERT INTO certified () VALUES (552455318,7); INSERT INTO certified () VALUES (556784565,5); INSERT INTO certified () VALUES (556784565,2); INSERT INTO certified () VALUES (556784565,3); INSERT INTO certified () VALUES (573284895,3); INSERT INTO certified () VALUES (573284895,4); INSERT INTO certified () VALUES (573284895,5); INSERT INTO certified () VALUES (574489456,8); INSERT INTO certified () VALUES (574489456,6); INSERT INTO certified () VALUES (574489457,7); INSERT INTO certified () VALUES (242518965,2); INSERT INTO certified () VALUES (242518965,10); INSERT INTO certified () VALUES (141582651,2); INSERT INTO certified () VALUES (141582651,10); INSERT INTO certified () VALUES (141582651,12); INSERT INTO certified () VALUES (011564812,2); INSERT INTO certified () VALUES (011564812,10); INSERT INTO certified () VALUES (356187925,6); INSERT INTO certified () VALUES (159542516,5); INSERT INTO certified () VALUES (159542516,7); INSERT INTO certified () VALUES (090873519,6);