Added migration.sql file and applied this changes to database

migration.sql

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+ALTER TABLE products ADD COLUMN ray_guid;
+ALTER TABLE products ADD COLUMN delete_date;
+ALTER TABLE territories ADD COLUMN delete_date;
+ALTER TABLE suppliers ADD COLUMN delete_date;
+ALTER TABLE region ADD COLUMN delete_date;
+ALTER TABLE orders ADD COLUMN delete_date;
+ALTER TABLE order_details ADD COLUMN delete_date;
+ALTER TABLE employees ADD COLUMN delete_date;
+ALTER TABLE customers ADD COLUMN delete_date;
+ALTER TABLE customer_demographics ADD COLUMN delete_date;
+ALTER TABLE categories ADD COLUMN delete_date;