Question

Aggregation

1. List the following about history books: number of history books, the minimum price, maximum price, and average sales. The format of output is: "Number" "Min Price" "Max Price" "Average Sale"

2. List the number of books and the average number of pages published by pub_id 01.

3. For each book type, list the the number of books and the average price. Sort the results by the number of books

Functions

4. List the name(s) of the publisher(s) that published the book with the shortest title name.

5. For each author, list the author id, area code, and the phone number without the area code.

6. List the author names in the form <first initial>, period, space, <last name>, e.g. K. Hull. Order the results first by last name, then by first name. Only list the authors who have both a first name and a last name in the database.

DROP TABLES IF EXISTS Artists,Genre, Members, Titles, Tracks,SalesPeople,Studios,XrefArtistsMembers; DROP TABLES IF EXISTS Authors,Publishers,Titles,Title_Authors,Royalties; DROP TABLES IF EXISTS Products,Customers,Orders,Order_details; DROP TABLES IF EXISTS Sailors,Boats,Reserves; CREATE TABLE Authors ( au_id CHAR(3) NOT NULL, au_fname VARCHAR(15) NOT NULL, au_lname VARCHAR(15) NOT NULL, phone VARCHAR(12) , address VARCHAR(20) , city VARCHAR(15) , state CHAR(2) , zip CHAR(5) , CONSTRAINT pk_Authors PRIMARY KEY (au_id) ); CREATE TABLE Publishers ( pub_id CHAR(3) NOT NULL, pub_name VARCHAR(20) NOT NULL, city VARCHAR(15) NOT NULL, state CHAR(2) , country VARCHAR(15) NOT NULL, CONSTRAINT pk_Publishers PRIMARY KEY (pub_id) ); CREATE TABLE Titles ( title_id CHAR(3) NOT NULL, title_name VARCHAR(40) NOT NULL, type VARCHAR(10) , pub_id CHAR(3) NOT NULL, pages INTEGER , price DECIMAL(5,2) , sales INTEGER , pubdate DATE , contract SMALLINT NOT NULL, CONSTRAINT pk_Titles PRIMARY KEY (title_id) ); CREATE TABLE Title_Authors ( title_id CHAR(3) NOT NULL, au_id CHAR(3) NOT NULL, au_order SMALLINT NOT NULL, royalty_share DECIMAL(5,2) NOT NULL, CONSTRAINT pk_Title_Authors PRIMARY KEY (title_id, au_id) ); CREATE TABLE Royalties ( title_id CHAR(3) NOT NULL, advance DECIMAL(9,2) , royalty_rate DECIMAL(5,2) , CONSTRAINT pk_Royalties PRIMARY KEY (title_id) ); INSERT INTO Authors VALUES('A01','Sarah','Buchman','718-496-7223', '75 West 205 St','Bronx','NY','10468'); INSERT INTO Authors VALUES('A02','Wendy','Heydemark','303-986-7020', '2922 Baseline Rd','Boulder','CO','80303'); INSERT INTO Authors VALUES('A03','Hallie','Hull','415-549-4278', '3800 Waldo Ave, #14F','San Francisco','CA','94123'); INSERT INTO Authors VALUES('A04','Klee','Hull','415-549-4278', '3800 Waldo Ave, #14F','San Francisco','CA','94123'); INSERT INTO Authors VALUES('A05','Christian','Kells','212-771-4680', '114 Horatio St','New York','NY','10014'); INSERT INTO Authors VALUES('A06','','Kellsey','650-836-7128', '390 Serra Mall','Palo Alto','CA','94305'); INSERT INTO Authors VALUES('A07','Paddy','O''Furniture','941-925-0752', '1442 Main St','Sarasota','FL','34236'); INSERT INTO Publishers VALUES('P01','Abatis Publishers','New York','NY','USA'); INSERT INTO Publishers VALUES('P02','Core Dump Books','San Francisco','CA','USA'); INSERT INTO Publishers VALUES('P03','Schadenfreude Press','Hamburg',NULL,'Germany'); INSERT INTO Publishers VALUES('P04','Tenterhooks Press','Berkeley','CA','USA'); INSERT INTO Publishers VALUES('P05','PTR Press','Los Angeles','CA','USA'); INSERT INTO Titles VALUES('T01','1977!','history','P01', 107,21.99,566,'2000-08-01',1); INSERT INTO Titles VALUES('T02','200 Years of German Humor','history','P03', 14,19.95,9566,'1998-04-01',1); INSERT INTO Titles VALUES('T03','Ask Your System Administrator','computer','P02', 1226,39.95,25667,'2000-09-01',1); INSERT INTO Titles VALUES('T04','But I Did It Unconsciously','psychology','P04', 510,12.99,13001,'1999-05-31',1); INSERT INTO Titles VALUES('T05','Exchange of Platitudes','psychology','P04', 201,6.95,201440,'2001-01-01',1); INSERT INTO Titles VALUES('T06','How About Never?','biography','P01', 473,19.95,11320,'2000-07-31',1); INSERT INTO Titles VALUES('T07','I Blame My Mother','biography','P03', 333,23.95,1500200,'1999-10-01',1); INSERT INTO Titles VALUES('T08','Just Wait Until After School','children','P04', 86,10.00,4095,'2001-06-01',1); INSERT INTO Titles VALUES('T09','Kiss My Boo-Boo','children','P04', 22,13.95,5000,'2002-05-31',1); INSERT INTO Titles VALUES('T10','Not Without My Faberge Egg','biography','P01', NULL,NULL,NULL,NULL,0); INSERT INTO Titles VALUES('T11','Perhaps It''s a Glandular Problem','psychology','P04', 826,7.99,94123,'2000-11-30',1); INSERT INTO Titles VALUES('T12','Spontaneous, Not Annoying','biography','P01', 507,12.99,100001,'2000-08-31',1); INSERT INTO Titles VALUES('T13','What Are The Civilian Applications?','history','P03', 802,29.99,10467,'1999-05-31',1); INSERT INTO Title_Authors VALUES('T01','A01',1,1.0); INSERT INTO Title_Authors VALUES('T02','A01',1,1.0); INSERT INTO Title_Authors VALUES('T03','A05',1,1.0); INSERT INTO Title_Authors VALUES('T04','A03',1,0.6); INSERT INTO Title_Authors VALUES('T04','A04',2,0.4); INSERT INTO Title_Authors VALUES('T05','A04',1,1.0); INSERT INTO Title_Authors VALUES('T06','A02',1,1.0); INSERT INTO Title_Authors VALUES('T07','A02',1,0.5); INSERT INTO Title_Authors VALUES('T07','A04',2,0.5); INSERT INTO Title_Authors VALUES('T08','A06',1,1.0); INSERT INTO Title_Authors VALUES('T09','A06',1,1.0); INSERT INTO Title_Authors VALUES('T10','A02',1,1.0); INSERT INTO Title_Authors VALUES('T11','A03',2,0.3); INSERT INTO Title_Authors VALUES('T11','A04',3,0.3); INSERT INTO Title_Authors VALUES('T11','A06',1,0.4); INSERT INTO Title_Authors VALUES('T12','A02',1,1.0); INSERT INTO Title_Authors VALUES('T13','A01',1,1.0); INSERT INTO Royalties VALUES('T01',10000,0.05); INSERT INTO Royalties VALUES('T02',1000,0.06); INSERT INTO Royalties VALUES('T03',15000,0.07); INSERT INTO Royalties VALUES('T04',20000,0.08); INSERT INTO Royalties VALUES('T05',100000,0.09); INSERT INTO Royalties VALUES('T06',20000,0.08); INSERT INTO Royalties VALUES('T07',1000000,0.11); INSERT INTO Royalties VALUES('T08',0,0.04); INSERT INTO Royalties VALUES('T09',0,0.05); INSERT INTO Royalties VALUES('T10',NULL,NULL); INSERT INTO Royalties VALUES('T11',100000,0.07); INSERT INTO Royalties VALUES('T12',50000,0.09); INSERT INTO Royalties VALUES('T13',20000,0.06); show tables;

Answer 1

1.List the following about history books: number of history books, the minimum price, maximum price, and average sales. The format of output is: "Number" "Min Price" "Max Price" "Average Sale"

query ====

SELECT COUNT(*) AS "Number" ,MIN(price) AS "Min Price", MAX(price) AS "Max Price", AVG(sales) as "Average sale"
FROM titles
WHERE type = "history"

2.List the number of books and the average number of pages published by pub_id 01.

query===

SELECT COUNT(title_id),AVG(pages)
FROM titles
WHERE pub_id = "P01"

3.For each book type, list the the number of books and the average price. Sort the results by the number of books.

query===

SELECT type,COUNT(*),AVG(price)
FROM titles
GROUP BY type
ORDER BY COUNT(*)

4. List the name(s) of the publisher(s) that published the book with the shortest title name.

query ==

SELECT pub_name
FROM publishers
WHERE pub_id = (SELECT pub_id
FROM titles
HAVING MIN(length(title_name)))

5.  For each author, list the author id, area code, and the phone number without the area code.

query ===

SELECT au_id, zip, phone
FROM authors

need detailed and clear mentioned questions what to do.

6. List the author names in the form <first initial>, period, space, <last name>, e.g. K. Hull. Order the results first by last name, then by first name. Only list the authors who have both a first name and a last name in the database.

query ===

order by lname

SELECT SUBSTRING(au_fname,1,1),au_lname
FROM authors
WHERE au_fname IS NOT NULL AND au_lname IS NOT NULL
ORDER BY au_lname

order by fname

SELECT SUBSTRING(au_fname,1,1),au_lname
FROM authors
WHERE au_fname IS NOT NULL AND au_lname IS NOT NULL
ORDER BY au_fname