Question

1. Write a query to display the columns listed below. For each customer the query should show the current system date, the current day (when you do the problem the date and day will be different), the number of characters in the member last name, the last date the customer rented a video and how many total videos the person rented.

/* Database Systems, 9th Ed., Coronel/MOrris/Rob */
/* Type of SQL : MySQL */

CREATE SCHEMA IF NOT EXISTS TINY_VIDEO;

USE TINY_VIDEO;

DROP TABLE IF EXISTS detail_rental;
DROP TABLE IF EXISTS rental;
DROP TABLE IF EXISTS membership;
DROP TABLE IF EXISTS video;
DROP TABLE IF EXISTS movie;
DROP TABLE IF EXISTS price;

/*Create table price*/
CREATE TABLE price
(price_id INTEGER PRIMARY KEY AUTO_INCREMENT,
description VARCHAR(20) NOT NULL,
rental_fee DECIMAL(5,2),
daily_late_fee DECIMAL(5,2));

/*Insert data into price*/
INSERT INTO price VALUES(1,'Standard',2.5,1);
INSERT INTO price VALUES(2,'New Release',4.0,3);
INSERT INTO price VALUES(3,'Discount',2.0,1);
INSERT INTO price VALUES(4,'Weekly Special',1.5,.5);

/*Create table movie*/
CREATE TABLE movie
(movie_id INTEGER PRIMARY KEY AUTO_INCREMENT,
title VARCHAR(75) NOT NULL,
year_released INTEGER,
cost DECIMAL(5,2),
genre VARCHAR(50),
price_id INTEGER,
FOREIGN KEY(price_id) REFERENCES price(price_id));

/*Insert data into movie*/
INSERT INTO movie VALUES(1234,'The Cesar Family Christmas',2007,39.95,'FAMILY',2);
INSERT INTO movie VALUES(1235,'Smokey Mountain Wildlife',2004,59.95,'ACTION',3);
INSERT INTO movie VALUES(1236,'Richard Goodhope',2008,59.95,'DRAMA',2);
INSERT INTO movie VALUES(1237,'Beatnik Fever',2007,29.95,'COMEDY',2);
INSERT INTO movie VALUES(1238,'Constant Companion',2008,89.95,'DRAMA',NULL);
INSERT INTO movie VALUES(1239,'Where Hope Dies',1998,25.49,'DRAMA',3);
INSERT INTO movie VALUES(1245,'Time to Burn',2006,45.49,'ACTION',3);
INSERT INTO movie VALUES(1246,'What He Doesn''t Know',2006,58.29,'COMEDY',1);

/*Create table video*/
CREATE TABLE video
(video_id INTEGER PRIMARY KEY AUTO_INCREMENT,
purchase_date DATE,
movie_id INTEGER,
FOREIGN KEY(movie_id) REFERENCES movie(movie_id));

/*Insert data into video*/
INSERT INTO video VALUES(54321,'2008-06-18',1234);
INSERT INTO video VALUES(54324,'2008-06-18',1234);
INSERT INTO video VALUES(54325,'2008-06-18',1234);
INSERT INTO video VALUES(34341,'2007-01-22',1235);
INSERT INTO video VALUES(34342,'2007-01-22',1235);
INSERT INTO video VALUES(34366,'2009-03-02',1236);
INSERT INTO video VALUES(34367,'2009-03-02',1236);
INSERT INTO video VALUES(34368,'2009-03-02',1236);
INSERT INTO video VALUES(34369,'2009-03-02',1236);
INSERT INTO video VALUES(44392,'2008-10-21',1237);
INSERT INTO video VALUES(44397,'2008-10-21',1237);
INSERT INTO video VALUES(59237,'2009-02-14',1237);
INSERT INTO video VALUES(61388,'2007-01-25',1239);
INSERT INTO video VALUES(61353,'2006-01-28',1245);
INSERT INTO video VALUES(61354,'2006-01-28',1245);
INSERT INTO video VALUES(61367,'2008-07-30',1246);
INSERT INTO video VALUES(61369,'2008-07-30',1246);

/*Create table membership*/
CREATE TABLE membership
(membership_id INTEGER PRIMARY KEY AUTO_INCREMENT,
first_name VARCHAR(30) NOT NULL,
last_name VARCHAR(30) NOT NULL,
street VARCHAR(120),
city VARCHAR(50),
state VARCHAR(2),
zip VARCHAR(5),
balance DECIMAL(10,2));

/*Insert data into membership*/
INSERT INTO membership VALUES(102,'Tami','Dawson','2632 Takli Circle','Norene','TN','37136',11);
INSERT INTO membership VALUES(103,'Curt','Knight','4025 Cornell Court','Flatgap','KY','41219',6);
INSERT INTO membership VALUES(104,'Jamal','Melendez','788 East 145th Avenue','Quebeck','TN','38579',0);
INSERT INTO membership VALUES(105,'Iva','Mcclain','6045 Musket Ball Circle','Summit','KY','42783',15);
INSERT INTO membership VALUES(106,'Miranda','Parks','4469 Maxwell Place','Germantown','TN','38183',0);
INSERT INTO membership VALUES(107,'Rosario','Elliott','7578 Danner Avenue','Columbia','TN','38402',5);
INSERT INTO membership VALUES(108,'Mattie','Guy','4390 Evergreen Street','Lily','KY','40740',0);
INSERT INTO membership VALUES(109,'Clint','Ochoa','1711 Elm Street','Greenville','TN','37745',10);
INSERT INTO membership VALUES(110,'Lewis','Rosales','4524 Southwind Circle','Counce','TN','38326',0);
INSERT INTO membership VALUES(111,'Stacy','Mann','2789 East Cook Avenue','Murfreesboro','TN','37132',8);
INSERT INTO membership VALUES(112,'Luis','Trujillo','7267 Melvin Avenue','Heiskell','TN','37754',3);
INSERT INTO membership VALUES(113,'Minnie','Gonzales','124 6th Street West','Williston','ND','58801',0);

/*Create table rental*/
CREATE TABLE rental
(rental_id INTEGER PRIMARY KEY AUTO_INCREMENT,
rental_date DATE,
membership_id INTEGER,
FOREIGN KEY(membership_id) REFERENCES membership(membership_id));

/*Insert data into rental*/
INSERT INTO rental VALUES(1001,'2009-03-01',103);
INSERT INTO rental VALUES(1002,'2009-03-01',105);
INSERT INTO rental VALUES(1003,'2009-03-02',102);
INSERT INTO rental VALUES(1004,'2009-03-02',110);
INSERT INTO rental VALUES(1005,'2009-03-02',111);
INSERT INTO rental VALUES(1006,'2009-03-02',107);
INSERT INTO rental VALUES(1007,'2009-03-02',104);
INSERT INTO rental VALUES(1008,'2009-03-03',105);
INSERT INTO rental VALUES(1009,'2009-03-03',111);

/*Create table detailrental*/
CREATE TABLE detail_rental
(rental_id INTEGER,
video_id INTEGER,
fee DECIMAL(5,2),
due_date DATE,
return_date DATE,
daily_late_fee DECIMAL(5,2),
PRIMARY KEY(rental_id, video_id),
FOREIGN KEY(rental_id) REFERENCES rental(rental_id),
FOREIGN KEY(video_id) REFERENCES video(video_id));

/*Insert data into dailyrental*/
INSERT INTO detail_rental VALUES(1001,34342,2,'2009-03-04','2009-03-02',1);
INSERT INTO detail_rental VALUES(1001,61353,2,'2009-03-04','2009-03-03',1);
INSERT INTO detail_rental VALUES(1002,59237,3.5,'2009-03-04','2009-03-04',3);
INSERT INTO detail_rental VALUES(1003,54325,3.5,'2009-03-04','2009-03-09',3);
INSERT INTO detail_rental VALUES(1003,61369,2,'2009-03-06','2009-03-09',1);
INSERT INTO detail_rental VALUES(1003,61388,0,'2009-03-06','2009-03-09',1);
INSERT INTO detail_rental VALUES(1004,44392,3.5,'2009-03-05','2009-03-07',3);
INSERT INTO detail_rental VALUES(1004,34367,3.5,'2009-03-05','2009-03-07',3);
INSERT INTO detail_rental VALUES(1004,34341,2,'2009-03-07','2009-03-07',1);
INSERT INTO detail_rental VALUES(1005,34342,2,'2009-03-07','2009-03-05',1);
INSERT INTO detail_rental VALUES(1005,44397,3.5,'2009-03-05','2009-03-05',3);
INSERT INTO detail_rental VALUES(1006,34366,3.5,'2009-03-05','2009-03-04',3);
INSERT INTO detail_rental VALUES(1006,61367,2,'2009-03-07',NULL,1);
INSERT INTO detail_rental VALUES(1007,34368,3.5,'2009-03-05',NULL,3);
INSERT INTO detail_rental VALUES(1008,34369,3.5,'2009-03-05','2009-03-05',3);
INSERT INTO detail_rental VALUES(1009,54324,3.5,'2009-03-05',NULL,3);
INSERT INTO detail_rental VALUES(1001,34366,3.5,'2009-03-04','2009-03-02',3);

Answer 1

SELECT M.membership_id,CONCAT(M.first_name,' ',M.last_name) AS Name ,CURDATE() AS Current_Date,

DAYNAME(CURDATE()) AS Current_Day,CHAR_LENGTH(M.last_name) AS last_name_length, MAX(R.rental_date) AS Last_date_rented ,COUNT(DR.video_id) as No_of_videos

FROM

MemberShip M INNER JOIN rental R ON R.membership_id =M.memberShip_id

INNER JOIN detail_rental DR ON DR.rental_id =R.rental_id

GROUP BY membership_id;

EXPLANATION:-

Here, we are using SELECT to fetchdata from the table.

CONCAT() is used to combine first and last name to get the full name.

CURDATE() is used to get the todays date.\

DAYNAME() function returns the name of the week's day for particular date passed.

CHAR_LENGTH() calculates the length of the character of the passed string.

COUNT() and MAX() are aggregate functions to ge the count of the videos and maximum rental date which will be last date rented.

Then , INNER JOIN is used to combine the table together .

GROUP BY is for grouping the aggregated result on the basis of the membership_id to get the count and last rented date for each member.