CREATE TABLE CUSTOMER ( CustomerID NUMBER PRIMARY KEY, Name VARCHAR2(20), Address VARCHAR2(20), PhoneNumber VARCHAR2(20), Email VARCHAR2(30), LoyaltyStatus VARCHAR2(20) ); CREATE TABLE ORDERS ( OrderID NUMBER PRIMARY KEY, OrderDate DATE, OrderStatus VARCHAR2(20), TotalCost NUMBER, CustomerID NUMBER, CONSTRAINT FK_ORDER_CUSTOMER FOREIGN KEY (CustomerID) REFERENCES CUSTOMER(CustomerID) ); CREATE TABLE PRODUCT ( ProductID NUMBER PRIMARY KEY, ProductName VARCHAR2(20), Description VARCHAR2(20), Price NUMBER, Category VARCHAR2(20) ); CREATE TABLE ORDERS_DETAILS ( OrderDetailID NUMBER PRIMARY KEY, OrderID NUMBER, ProductID NUMBER, ProductName VARCHAR2(20), Price NUMBER, Quantity NUMBER, Subtotal NUMBER, CONSTRAINT FK_ORDER_DETAILS_ORDER FOREIGN KEY (OrderID) REFERENCES ORDERS(OrderID), CONSTRAINT FK_ORDER_DETAILS_PRODUCT FOREIGN KEY (ProductID) REFERENCES PRODUCT(ProductID) ); CREATE TABLE STORE ( StoreID NUMBER PRIMARY KEY, StoreName VARCHAR2(20), Location VARCHAR2(20), HoursOfOperation VARCHAR2(20) ); CREATE TABLE INVENTORY ( ProductID NUMBER, StoreID NUMBER, QuantityOnHand NUMBER, ReorderPoint NUMBER, PRIMARY KEY (ProductID, StoreID), CONSTRAINT FK_INVENTORY_PRODUCT FOREIGN KEY (ProductID) REFERENCES PRODUCT(ProductID), CONSTRAINT FK_INVENTORY_STORE FOREIGN KEY (StoreID) REFERENCES STORE(StoreID) ); CREATE TABLE "TRANSACTION" ( TransactionID NUMBER PRIMARY KEY, TransactionDate DATE, TransactionType VARCHAR2(20), TotalAmount NUMBER, CustomerID NUMBER, CONSTRAINT FK_TRANSACTION_CUSTOMER FOREIGN KEY (CustomerID) REFERENCES CUSTOMER(CustomerID) ); CREATE TABLE TRANSACTION_DETAILS ( TransactionDetailID NUMBER PRIMARY KEY, TransactionID NUMBER, ProductID NUMBER, ProductName VARCHAR2(20), Price NUMBER, Quantity NUMBER, Subtotal NUMBER, CONSTRAINT FK_TRANSACTION_DETAILS_TRANSACTION FOREIGN KEY (TransactionID) REFERENCES "TRANSACTION"(TransactionID), CONSTRAINT FK_TRANSACTION_DETAILS_PRODUCT FOREIGN KEY (ProductID) REFERENCES PRODUCT(ProductID) ); CREATE TABLE EMPLOYEE ( EmployeeID NUMBER PRIMARY KEY, Name VARCHAR2(20), Address VARCHAR2(20), PhoneNumber VARCHAR2(20), Email VARCHAR2(30), Position VARCHAR2(20) ); CREATE TABLE SALARY ( EmployeeID NUMBER, StartDate DATE, SalaryAmount NUMBER, EndDate DATE, PRIMARY KEY (EmployeeID, StartDate), CONSTRAINT FK_SALARY_EMPLOYEE FOREIGN KEY (EmployeeID) REFERENCES EMPLOYEE(EmployeeID) ); CREATE TABLE SHIFT ( ShiftID NUMBER PRIMARY KEY, StartTime TIMESTAMP, EndTime TIMESTAMP, StoreID NUMBER, EmployeeID NUMBER, CONSTRAINT FK_SHIFT_EMPLOYEE FOREIGN KEY (EmployeeID) REFERENCES EMPLOYEE(EmployeeID), CONSTRAINT FK_SHIFT_STORE FOREIGN KEY (StoreID) REFERENCES STORE(StoreID) ); 加密Price和PhoneNumber

对于加密 Price 和 PhoneNumber，可以使用数据库加密技术来实现。比如，可以使用 Oracle 数据库中的 DBMS_CRYPTO 包来进行加密。

对于 Price 字段，可以使用 DBMS_CRYPTO 包中的 AES 加密算法，对 Price 字段进行加密。具体实现可以参考如下代码：

UPDATE PRODUCT SET Price = DBMS_CRYPTO.ENCRYPT(UTL_I18N.STRING_TO_RAW(Price, 'AL32UTF8'), 1, utl_raw.cast_to_raw('mykey'));

其中，UTL_I18N.STRING_TO_RAW 函数将 Price 字段转换为原始字节流，DBMS_CRYPTO.ENCRYPT 函数使用 AES 算法对字节流进行加密，utl_raw.cast_to_raw 函数将密钥转换为原始字节流。

对于 PhoneNumber 字段，可以使用 DBMS_CRYPTO 包中的 SHA-256 哈希算法，对 PhoneNumber 字段进行加密。具体实现可以参考如下代码：

UPDATE CUSTOMER SET PhoneNumber = DBMS_CRYPTO.HASH(UTL_I18N.STRING_TO_RAW(PhoneNumber, 'AL32UTF8'), 2);

其中，DBMS_CRYPTO.HASH 函数使用 SHA-256 哈希算法对字节流进行加密，2 表示使用 SHA-256 算法，UTL_I18N.STRING_TO_RAW 函数将 PhoneNumber 字段转换为原始字节流。

需要注意的是，加密后的 Price 和 PhoneNumber 字段无法直接使用，需要在程序中进行解密操作后才能使用。