小编lea*_*gIT的帖子

T-SQL 减号运算符

这些是我创建并在其中插入值的表：

CREATE TABLE Customer
(Customer_No INTEGER IDENTITY (1,1) PRIMARY KEY,
 Customer_Name VARCHAR(30) NOT NULL
)

CREATE TABLE DVD
(DVD_No INTEGER IDENTITY (1,1) PRIMARY KEY,
 DVD_Name VARCHAR(30)
)

CREATE TABLE DVD_Purchase
(DVD_Purchase_No INTEGER IDENTITY (1,1) PRIMARY KEY,
 DVD_No INTEGER NOT NULL,
 Customer_No INTEGER NOT NULL
 )

INSERT INTO Customer (Customer_Name)
VALUES('Daman')
INSERT INTO Customer (Customer_Name)
VALUES('Saif')
INSERT INTO Customer (Customer_Name)
VALUES('Gurung')
INSERT INTO Customer (Customer_Name)
VALUES('Upendra')
INSERT INTO Customer (Customer_Name)
VALUES('Ornob')

INSERT INTO DVD (DVD_Name)
VALUES('Bleach')
INSERT INTO DVD (DVD_Name)
VALUES('Gintama') …

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sql-server sql-server-2014 except

lea*_*gIT

2018 11-06

6
推荐指数

1
解决办法

3638
查看次数

SQL 查询以显示已购买所有 DVD 的客户的姓名

这些是我创建的表并相应地插入了值：

CREATE TABLE Customer
(Customer_No INTEGER IDENTITY (1,1) PRIMARY KEY,
 Customer_Name VARCHAR(30) NOT NULL
)

CREATE TABLE DVD
(DVD_No INTEGER IDENTITY (1,1) PRIMARY KEY,
 DVD_Name VARCHAR(30)
)

CREATE TABLE DVD_Purchase
(DVD_Purchase_No INTEGER IDENTITY (1,1) PRIMARY KEY,
 DVD_No INTEGER NOT NULL,
 Customer_No INTEGER NOT NULL
 )

INSERT INTO Customer (Customer_Name)
VALUES('Daman')
INSERT INTO Customer (Customer_Name)
VALUES('Saif')
INSERT INTO Customer (Customer_Name)
VALUES('Gurung')
INSERT INTO Customer (Customer_Name)
VALUES('Upendra')

INSERT INTO DVD (DVD_Name)
VALUES('Bleach')
INSERT INTO DVD (DVD_Name)
VALUES('Gintama')
INSERT INTO DVD (DVD_Name)
VALUES('Tokyo …

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sql-server relational-division

lea*_*gIT

2018 10-29

5
推荐指数

1
解决办法

4万
查看次数