CSCI-UA: Database Design & Web Implementation. Professor Evan Sandhaus
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1 CSCI-UA: Database Design & Web Implementation Professor Evan Sandhaus Lecture #10: Open Office Base, Life on the Console, MySQL Database Design and Web Implementation
2 Administrivia Readings: Chapters 6, 7 for Tuesday Homework New homework! Database Design and Web Implementation 2
3 On Today s Menu Lets go over the homework real quick Open Office Base Spotify Example Meet the console MySQL Databases on the command line. Database Design and Web Implementation 3
4 SQL Structured Query Language Debuted in 1974 SQL-86, SQL-89, SQL-92, SQL:1999, SQL:2003, SQL:2008, SQL:2011 Used in LOTS of relational database systems Database Design and Web Implementation 4
5 MySQL Relational database engine Named after the creator s daughter My Released in 1995 Now owned by Oracle Downloaded 100 Million Times Installed on i6 for you to use! Database Design and Web Implementation 5
6 Diving Right In - Connecting > ssh <username>@i6.cims.nyu.edu > mysql -u<username> -p<password> Database Design and Web Implementation 6
7 CREATE DATABASE spotify; Database Design and Web Implementation 7
8 USE spotify; Database Design and Web Implementation 8
9 CREATE TABLE artist( artist_id int(11) NOT NULL AUTO_INCREMENT, artist_name varchar(255) NOT NULL, popularity float NOT NULL DEFAULT 0, PRIMARY KEY (artist_id) ) ENGINE=InnoDB; Database Design and Web Implementation 9
10 DESC artist; Database Design and Web Implementation 10
11 INSERT INTO artist(artist_name, popularity) VALUES ('Green Day', 0.6); Database Design and Web Implementation 11
12 INSERT INTO artist(artist_name) VALUES ('Lady Gaga'); Database Design and Web Implementation 12
13 INSERT INTO artist(artist_name, popularity) VALUES ('The Beatles', 1.0), ('LMFAO', 0.4), ('Rhianna',.9); Database Design and Web Implementation 13
14 SELECT * FROM artist; Database Design and Web Implementation 14
15 SELECT * FROM artist ORDER BY popularity; Database Design and Web Implementation 15
16 SELECT * FROM artist ORDER BY popularity DESC; Database Design and Web Implementation 16
17 SELECT * FROM artist WHERE popularity > 0.5; Database Design and Web Implementation 17
18 SELECT * FROM artist WHERE artist_id = 1; Database Design and Web Implementation 18
19 SELECT * FROM artist WHERE artist_name = 'Green Day'; Database Design and Web Implementation 19
20 SELECT * FROM artist WHERE artist_name = 'Lady Gaga'; Database Design and Web Implementation 20
21 UPDATE artist SET popularity =.85 WHERE artist_id = 2; Database Design and Web Implementation 21
22 CREATE TABLE album( album_id int(11) NOT NULL AUTO_INCREMENT, artist_id int(11) NOT NULL, album_name varchar(255) NOT NULL, release_year int(4) NOT NULL, PRIMARY KEY (album_id), CONSTRAINT FOREIGN KEY (artist_id) REFERENCES artist (artist_id) ) ENGINE=InnoDB; Database Design and Web Implementation 22
23 NSERT INTO album (artist_id, album_name, release_year) VALUES (1, 'Dookie', 1993); INSERT INTO album (artist_id, album_name, release_year) VALUES (1, 'Uno', 2012), (1, 'Dos', 2012), (1, 'Tre!', 2013); INSERT INTO album (artist_id, album_name, release_year) VALUES (2, 'Born This Way', 2012); Database Design and Web Implementation 23
24 INSERT INTO album (artist_id, album_name, release_year) VALUES (6, 'Not a valid artist', 9999); Database Design and Web Implementation 24
25 SELECT * FROM album; Database Design and Web Implementation 25
26 SELECT * FROM artist JOIN album ON artist.artist_id = album.artist_id; Database Design and Web Implementation 26
27 SELECT * FROM artist JOIN album ON artist.artist_id = album.artist_id WHERE artist.artist_id = 1; Database Design and Web Implementation 27
28 CREATE TABLE genre( genre_name varchar(255), PRIMARY KEY (genre_name) ) ENGINE=InnoDB; Database Design and Web Implementation 28
29 INSERT INTO genre(genre_name) VALUES ('Rock'), ('Pop'), ('Punk'), ('Classic Rock'); Database Design and Web Implementation 29
30 INSERT INTO genre(genre_name) VALUES ('Rock'); Database Design and Web Implementation 30
31 ALTER TABLE album ADD COLUMN genre_name varchar(255) DEFAULT NULL; Database Design and Web Implementation 31
32 ALTER TABLE album ADD CONSTRAINT FOREIGN KEY (genre_name) REFERENCES genre (genre_name); Database Design and Web Implementation 32
33 UPDATE album SET genre_name = 'Electronica' WHERE artist_id = 2; Database Design and Web Implementation 33
34 UPDATE album SET genre_name = 'Pop' WHERE artist_id = 2; Database Design and Web Implementation 34
35 UPDATE artist JOIN album ON artist.artist_id = album.artist_id SET genre_name = 'Punk' WHERE artist_name = 'Green Day'; Database Design and Web Implementation 35
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