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IN COMMAND PROMPT!!! WITH SQLITE3 Problem 1 -------------------------------------- Write a SQL script to: a) Create table A with 3 columns, one of which is a
IN COMMAND PROMPT!!! WITH SQLITE3
Problem 1 -------------------------------------- Write a SQL script to: a) Create table A with 3 columns, one of which is a primary key. b) Create table B with 3 columns, one of which is a primary key and another of which is a foreign key referencing the primary key in table A. c) Insert 2 rows in table A d) Insert 2 rows into table B e) Criteria for (c) and (d): The tables should have "referential integrity"! I.e. The foreign keys in table B should have corresponding values in table A. What does that mean? If the primary keys are "1" and "2" in table A, then the corresponding foreign keys should be "1" and "2". f) Alter table B to add a NON NULL column to it, and provide a DEFAULT value for the column. g) Alter table A to rename it "C". h) Inner join table C and table B. I'll be grading syntax like semicolons + proper sql statements and grading pretty strictly. Maybe -5 per syntax error and -10 for writing something that makes no sense. Your goal is to be able to write 10 or so SQL statements without making any mistakes. Problem 2 -------------------------------------- a) Define first normal form, give an example of a small table that violates 1NF, and explain why it isn't in 1NF. b) Define second normal form, give an example of a small table that violates 2NF, and explain why it isn't in 2NF. c) Define third normal form, give an example of a small table that violates 3NF, and explain why it isn't in 3NF.
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