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Create an SQL script for building the MOVIES database. Follow schema requirements, constraints, and submission guidelines. Practice using MySQL or Oracle platform to complete the assignment.
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Homework #2 • Due the midnight of April 15th. • 100 Points • In this homework, you create an SQL script to build the MOVIES database according to the schema shown in the next page. • Your script must be a text file (.txt). No other file formats (Word, Powerpoint, PDF, etc.) will be accepted. • You must also meet all the constraint requirements given later. • You can use either MySQL or Oracle as the platform
The Movies Database varchar(40) char(1) char(9) date date varchar(40) PERSON Name Sex Imdb_nm B_date D_date B_place char(9) char(9) varchar(60) char(9) char(9) varchar(12) Actor Movie Char_name Actor Movie Function PLAYS_IN INVOLVES_IN dec(4,0) char(4) varchar(60) char(9) FILM Title Imdb_tt R_year Rating
Submission Send an email to the TA (ykim9@gmu.edu): • Subject: 450 HW2 from your name • Replace the italic part by your own name • Message body: • Give your full name and the last 4 digits of GMU ID. • Specify the platform you use (MySQL or Oracle). • Your SQL script as an attachment, named asLastnameLast4DigitsOfGID-hw2.txt • For example, Joe Smith’s GMU ID ends with 1234, and his attachment must be named Smith-1234-hw2.txt
Platform • MySQL • On Windows: follow the instructions in Lecture 07 for installation. • On Linux: Sorry, you are own your own • Oracle • Read the instructions in http://labs.ite.gmu.edu/reference/faq_oracle.htm to setup your Oracle account. • Contact the TA for further assistance.
Answer Outline • In the first step, use the “create database MOVIES;” command to create the database. • Use the “use MOVIES;” command to switch to MOVIES as the default database. • Use the “create table” command to create the 4 tables: PERSON, FILM, INVOLVES_IN, and PLAYS_IN. • If necessary, use the “alter table” command to add foreign keys. • Use the “show columns from table” command to show the schemas of the three tables.
Constraint Requirements • Primary keys of the tables must be specified. • All primary key attributes cannot be null. • All foreign keys in the database schema must be defined. • In the PERSON table, • Name and B_date (birth date) cannot be null. • B_date must be greater/later than or equal to 1800-01-01. • D_date (death date) is defaulted to be null. • In the FILM table, title cannot be null. • In the PLAYS_IN table, character_name is defaulted to be “unknown”.
Hints • First, you may want to practice SQL commands interactively in the “MySQL Command Line Client” • While developing/testing your script (with Notepad for instance), copy-and-paste the commands in the script to the MySQL client window and the commands will be executed. • Check the outputs of in the window for correctness. • Keep in mind that every test will have to start with an empty state --- use the “drop table” or “drop database” commands to make sure if it.