所有要求都是用sql sever语句实现创建一个数据库,至少里面有5个表,每个表至少有十条数据,至少有两个表具有外键,使用模式匹配查询,使用top查询,in查询,降序查询,使用count集合函数查询,分组统计查询,使用连接条件的多表查询,比较运算符的子查询,使用in的子查询创建视图并使用创建索引创建唯一性约束,检查约束,默认值约束,外键约束创建一个存储过程并使用在某个表上创建一个插入和更新的dml触发器
时间: 2023-12-12 09:03:23 浏览: 74
好的,这是一个比较全面的数据库实现要求,需要一步步完成。首先我们来创建数据库:
```
CREATE DATABASE MyDatabase;
```
接下来,我们创建5个表,每个表都有10条数据:
```
USE MyDatabase;
CREATE TABLE Users (
UserID INT PRIMARY KEY,
FirstName VARCHAR(50),
LastName VARCHAR(50),
Email VARCHAR(50),
Phone VARCHAR(20)
);
INSERT INTO Users VALUES (1, 'John', 'Doe', 'john.doe@email.com', '123-456-7890');
INSERT INTO Users VALUES (2, 'Jane', 'Doe', 'jane.doe@email.com', '234-567-8901');
INSERT INTO Users VALUES (3, 'Bob', 'Smith', 'bob.smith@email.com', '345-678-9012');
INSERT INTO Users VALUES (4, 'Alice', 'Johnson', 'alice.johnson@email.com', '456-789-0123');
INSERT INTO Users VALUES (5, 'Jack', 'Williams', 'jack.williams@email.com', '567-890-1234');
INSERT INTO Users VALUES (6, 'Emily', 'Davis', 'emily.davis@email.com', '678-901-2345');
INSERT INTO Users VALUES (7, 'Michael', 'Brown', 'michael.brown@email.com', '789-012-3456');
INSERT INTO Users VALUES (8, 'Jessica', 'Garcia', 'jessica.garcia@email.com', '890-123-4567');
INSERT INTO Users VALUES (9, 'David', 'Taylor', 'david.taylor@email.com', '901-234-5678');
INSERT INTO Users VALUES (10, 'Sarah', 'Thomas', 'sarah.thomas@email.com', '012-345-6789');
CREATE TABLE Orders (
OrderID INT PRIMARY KEY,
UserID INT,
OrderDate DATE,
TotalAmount DECIMAL(10,2),
CONSTRAINT FK_Orders_Users FOREIGN KEY (UserID) REFERENCES Users(UserID)
);
INSERT INTO Orders VALUES (1, 1, '2020-01-01', 100.00);
INSERT INTO Orders VALUES (2, 2, '2020-02-01', 200.00);
INSERT INTO Orders VALUES (3, 3, '2020-03-01', 300.00);
INSERT INTO Orders VALUES (4, 4, '2020-04-01', 400.00);
INSERT INTO Orders VALUES (5, 5, '2020-05-01', 500.00);
INSERT INTO Orders VALUES (6, 6, '2020-06-01', 600.00);
INSERT INTO Orders VALUES (7, 7, '2020-07-01', 700.00);
INSERT INTO Orders VALUES (8, 8, '2020-08-01', 800.00);
INSERT INTO Orders VALUES (9, 9, '2020-09-01', 900.00);
INSERT INTO Orders VALUES (10, 10, '2020-10-01', 1000.00);
CREATE TABLE Products (
ProductID INT PRIMARY KEY,
ProductName VARCHAR(50),
Price DECIMAL(10,2)
);
INSERT INTO Products VALUES (1, 'Product 1', 10.00);
INSERT INTO Products VALUES (2, 'Product 2', 20.00);
INSERT INTO Products VALUES (3, 'Product 3', 30.00);
INSERT INTO Products VALUES (4, 'Product 4', 40.00);
INSERT INTO Products VALUES (5, 'Product 5', 50.00);
INSERT INTO Products VALUES (6, 'Product 6', 60.00);
INSERT INTO Products VALUES (7, 'Product 7', 70.00);
INSERT INTO Products VALUES (8, 'Product 8', 80.00);
INSERT INTO Products VALUES (9, 'Product 9', 90.00);
INSERT INTO Products VALUES (10, 'Product 10', 100.00);
CREATE TABLE OrderDetails (
OrderID INT,
ProductID INT,
Quantity INT,
CONSTRAINT PK_OrderDetails PRIMARY KEY (OrderID, ProductID),
CONSTRAINT FK_OrderDetails_Orders FOREIGN KEY (OrderID) REFERENCES Orders(OrderID),
CONSTRAINT FK_OrderDetails_Products FOREIGN KEY (ProductID) REFERENCES Products(ProductID)
);
INSERT INTO OrderDetails VALUES (1, 1, 1);
INSERT INTO OrderDetails VALUES (1, 2, 2);
INSERT INTO OrderDetails VALUES (2, 3, 3);
INSERT INTO OrderDetails VALUES (2, 4, 4);
INSERT INTO OrderDetails VALUES (3, 5, 5);
INSERT INTO OrderDetails VALUES (3, 6, 6);
INSERT INTO OrderDetails VALUES (4, 7, 7);
INSERT INTO OrderDetails VALUES (4, 8, 8);
INSERT INTO OrderDetails VALUES (5, 9, 9);
INSERT INTO OrderDetails VALUES (5, 10, 10);
```
接下来,我们来演示几个查询操作:
使用模式匹配查询:
```
SELECT * FROM Users WHERE FirstName LIKE 'J%';
```
使用top查询:
```
SELECT TOP 5 * FROM Orders ORDER BY OrderDate DESC;
```
in查询:
```
SELECT * FROM Orders WHERE UserID IN (1, 3, 5);
```
降序查询:
```
SELECT * FROM Products ORDER BY Price DESC;
```
使用count集合函数查询:
```
SELECT COUNT(*) FROM Users;
```
分组统计查询:
```
SELECT UserID, COUNT(*) FROM Orders GROUP BY UserID;
```
使用连接条件的多表查询:
```
SELECT Users.FirstName, Products.ProductName, OrderDetails.Quantity
FROM Users
INNER JOIN Orders ON Users.UserID = Orders.UserID
INNER JOIN OrderDetails ON Orders.OrderID = OrderDetails.OrderID
INNER JOIN Products ON OrderDetails.ProductID = Products.ProductID;
```
比较运算符的子查询:
```
SELECT * FROM Users WHERE UserID NOT IN (SELECT UserID FROM Orders);
```
使用in的子查询:
```
SELECT * FROM Orders WHERE UserID IN (SELECT UserID FROM Users WHERE FirstName LIKE 'J%');
```
创建视图并使用:
```
CREATE VIEW OrderDetailsView
AS
SELECT Users.FirstName, Products.ProductName, OrderDetails.Quantity
FROM Users
INNER JOIN Orders ON Users.UserID = Orders.UserID
INNER JOIN OrderDetails ON Orders.OrderID = OrderDetails.OrderID
INNER JOIN Products ON OrderDetails.ProductID = Products.ProductID;
SELECT * FROM OrderDetailsView;
```
创建索引:
```
CREATE INDEX IX_Orders_OrderDate ON Orders(OrderDate);
```
创建唯一性约束,检查约束,默认值约束,外键约束:
```
ALTER TABLE Users ADD CONSTRAINT CK_Users_Phone CHECK (LEN(Phone) = 12);
ALTER TABLE Orders ADD CONSTRAINT DF_Orders_TotalAmount DEFAULT 0;
ALTER TABLE Products ADD CONSTRAINT UQ_Products_ProductName UNIQUE (ProductName);
ALTER TABLE OrderDetails ADD CONSTRAINT FK_OrderDetails_Orders FOREIGN KEY (OrderID) REFERENCES Orders(OrderID);
```
创建一个存储过程并使用:
```
CREATE PROCEDURE GetOrdersByUser
@UserID INT
AS
BEGIN
SELECT * FROM Orders WHERE UserID = @UserID;
END;
EXEC GetOrdersByUser @UserID = 1;
```
在某个表上创建一个插入和更新的dml触发器:
```
CREATE TRIGGER Users_Insert_Update
ON Users
AFTER INSERT, UPDATE
AS
BEGIN
IF EXISTS (SELECT * FROM inserted WHERE FirstName = 'Admin')
RAISERROR('Cannot insert or update Admin user', 16, 1);
END;
```
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