《資料庫系統原理》實驗報告

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一、實驗內容及資料記錄

1、考核內容：

1）建立資料庫bank。

2）建立表結構，如表

2、考核內容：

1）建立主鍵約束

2）建立Check約束

3）建立外來鍵約束

3、考核內容：根據下面圖示內容，用SQL語句建表結構，錄入資料，並完成查詢。

資料庫關係：

實驗步驟：

1.        建立資料庫，建立表

2.        插入資料

3.        釋出相關命令語句完成1-16小問操作。

1、Find the name, loan number and loan amountof all customers; rename the column name loan_number

2、Find the names of all customers whosestreet includes the substring “Main”.

3、Find all customers who have a loan, anaccount, or both:

4、Find all customers who have both a loanand an account.

5、Find all customers who have an account butno loan.

6、Find the average account balance at thePerryridge branch.

7、Find the number of tuples in the customerrelation.

8、Find the number of depositors in the bank.

9、Find the number of depositors for eachbranch.

10、           Find the names of all branches where the average account balanceis more than $1,200.

11、Find all loan number which appear in the loanrelation with null values for amount.

12、Find all customers who have both an accountand a loan at the bank.

13、Find all customers who have a loan at thebank but do not have an account at the bank

14、Find all customers who have both anaccount and a loan at the Perryridge branch

15、Find all branches that have greater assetsthan some branch located in Brooklyn.

16、Find the names of all branches that havegreater assets than all branches located in Brooklyn.

二、實驗過程中遇到哪些問題，如何解決的？