Constraints Review the Northwind SQL script for foreign key constraints in the CREATE TABLE statements. Create an INSERT statement to insert a new product using an invalid supplier and/or category ID to verify that foreign key constraints are being enforced. Create a DELETE statement to delete a supplier with existing products to verify that foreign key constraints are being enforced. Review each of the Northwind database tables and modify the CREATE TABLE statements to enforce the listed column constraints (NOT NULL, > 0, etc.). Create INSERT statements to test column constraints and verify that they are being enforced. Modify the CREATE TABLE statement for the Orders table to include a default value for Order Date. Create an INSERT statement to test that the default value is automatically added to new orders. Views and Stored Procedures Create views for each of the Northwind SQL and and Northwind Advanced SQL SELECT queries. Create stored procedures for each of the Northwind Advanced SQL INSERT, UPDATE, and DELETE statements. Note: SQLite doesn't support saving stored procedures. Saved SQL statements may be executed using the sqlite3 command line instead. Indexes Review each of the Northwind database tables and create appropriate indexes for the indicated columns. For the UNIQUE indexes, create an INSERT statement to insert a duplicate product name and verify that the UNIQUE constraints are being enforced.