ALTER TABLE City DROP CONSTRAINT FK_City_Region ALTER TABLE City DROP CONSTRAINT FK_City_Time_Zone ALTER TABLE Customer DROP CONSTRAINT FK_Customer_City ALTER TABLE Customer DROP CONSTRAINT FK_Customer_Emp_Created ALTER TABLE Customer DROP CONSTRAINT FK_Customer_Shop ALTER TABLE Employee_Login DROP CONSTRAINT FK_Employee_Login ALTER TABLE Employee_Login DROP CONSTRAINT FK_Employee_Login_Role ALTER TABLE Employee_Role DROP CONSTRAINT FK_Employee_Role ALTER TABLE Employee_Role DROP CONSTRAINT FK_Employee_Role_Role_Type ALTER TABLE Employee_Role DROP CONSTRAINT FK_Employee_Role_Shop ALTER TABLE Employee_Role DROP CONSTRAINT FK_Employee_Role_Workplace ALTER TABLE Employee DROP CONSTRAINT FK_Employee_Shop ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Contact_Customer ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Emp_Order_Approved ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Emp_Order_Created ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Emp_Order_Managed ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Emp_Order_Submitted ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Header_Shop ALTER TABLE Order_History DROP CONSTRAINT FK_Order_History_Order_Header ALTER TABLE Order_History DROP CONSTRAINT FK_Order_History_Order_Status ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Invoiced_Customer ALTER TABLE Order_Line_History DROP CONSTRAINT FK_Order_Line_History_Status ALTER TABLE Order_Line DROP CONSTRAINT FK_Order_Line_Submitted_Emp ALTER TABLE Order_Header DROP CONSTRAINT FK_Order_Vehicle ALTER TABLE Organization DROP CONSTRAINT FK_Organization_Shop ALTER TABLE Region DROP CONSTRAINT FK_Region_Country ALTER TABLE Role_Function DROP CONSTRAINT FK_Role_Function_Function_Type ALTER TABLE Role_Function DROP CONSTRAINT FK_Role_Function_Role_Type ALTER TABLE Shop DROP CONSTRAINT FK_Shop_City ALTER TABLE Shop DROP CONSTRAINT FK_Shop_Currency ALTER TABLE Shop DROP CONSTRAINT FK_Shop_Language ALTER TABLE Workplace DROP CONSTRAINT FK_Shop_Workplace ALTER TABLE Tax_Type DROP CONSTRAINT FK_Tax_Type_Shop ALTER TABLE Vehicle DROP CONSTRAINT FK_Vehicle_Contact_Person ALTER TABLE Vehicle DROP CONSTRAINT FK_Vehicle_Owner ALTER TABLE Workplace DROP CONSTRAINT FK_Workplace_Inventory ALTER TABLE Workplace DROP CONSTRAINT FK_Workplace_Labor ALTER TABLE Workplace DROP CONSTRAINT FK_Workplace_Type DROP TABLE IF EXISTS City CASCADE DROP TABLE IF EXISTS Country CASCADE DROP TABLE IF EXISTS Currency CASCADE DROP TABLE IF EXISTS Customer CASCADE DROP TABLE IF EXISTS Employee CASCADE DROP TABLE IF EXISTS Employee_Login CASCADE DROP TABLE IF EXISTS Employee_Role CASCADE DROP TABLE IF EXISTS Function_Type CASCADE DROP TABLE IF EXISTS Language CASCADE DROP TABLE IF EXISTS Order_Header CASCADE DROP TABLE IF EXISTS Order_History CASCADE DROP TABLE IF EXISTS Order_Line_Cause CASCADE DROP TABLE IF EXISTS Order_Line_History CASCADE DROP TABLE IF EXISTS Order_Line_Status CASCADE DROP TABLE IF EXISTS Order_Status CASCADE DROP TABLE IF EXISTS Organization CASCADE DROP TABLE IF EXISTS Region CASCADE DROP TABLE IF EXISTS Role_Function CASCADE DROP TABLE IF EXISTS Role_Type CASCADE DROP TABLE IF EXISTS Shop CASCADE DROP TABLE IF EXISTS Tax_Type CASCADE DROP TABLE IF EXISTS Time_Zone CASCADE DROP TABLE IF EXISTS Vehicle CASCADE DROP TABLE IF EXISTS Workplace CASCADE DROP TABLE IF EXISTS Workplace_Type CASCADE