Added running queries, testing pending from 4-16.

Practical/Assignment-A2/Queries-A2.md

@@ -1,6 +1,6 @@
-# Queries for Assignment-A2
+# Database Queries for Assignment-A2
 
-This file contains all the queries required to build the [database](https://git.kska.io/DatabaseManagementSystems/src/branch/main/Practical/Assignment-A2/Database_A2.sql)
+This file contains all the queries required to build the [database](https://git.kska.io/sppu-te-comp-content/DatabaseManagementSystems/src/branch/main/Practical/Assignment-A2/Database_A2.sql)
 
 ## Creating database
 
@@ -63,8 +63,8 @@ INSERT INTO Loan (loanNum, branchName, amount) VALUES
 (155, "Dhole Patil", 500),
 (156, "Nagarwala", 250),
 (157, "Peachtree", 600),
-(158, "Bishops", 900),
-(159, "Amanora", 2500);
+(158, "Bishops", 9000),
+(159, "Amanora", 25000);
 
 INSERT INTO Borrower VALUES
 ("Kalas", 156),
@@ -88,4 +88,141 @@ INSERT INTO Depositor VALUES
 
 ## Running queries
 
-==PENDING==
+1. Find the names of all branches in loan relation.
+
+```sql
+SELECT branchName FROM Loan;
+
+```
+
+2. Find all loan numbers for loans made at Akurdi Branch with loan amount > 12000.
+
+```sql
+SELECT loanNum FROM Loan WHERE amount>12000;
+
+```
+
+3. Find all customers who have a loan from bank. Find their names,loan_no and loan amount.
+
+```sql
+SELECT * from Borrower;
+SELECT Borrower.loanNum FROM Borrower INNER JOIN Loan ON Borrower.loanNum = Loan.loanNum;
+
+```
+
+==TESTING PENDING==
+
+4. List all customers in alphabetical order who have loan from Akurdi branch.
+
+```sql
+SELECT customerName
+FROM Borrower
+WHERE loanNum IN (SELECT loanNum FROM Loan WHERE branchName = 'Akurdi')
+ORDER BY customerName;
+
+```
+
+5. Find all customers who have an account or loan or both at bank.
+
+```sql
+SELECT DISTINCT customerName
+FROM (SELECT customerName FROM Account UNION SELECT customerName FROM Borrower) AS Customers;
+
+```
+
+6. Find all customers who have both account and loan at bank.
+
+```sql
+SELECT customerName
+FROM Account
+WHERE customerName IN (SELECT customerName FROM Borrower);
+
+```
+
+7. Find all customers who have account but no loan at the bank.
+
+```sql
+SELECT customerName
+FROM Account
+WHERE customerName NOT IN (SELECT customerName FROM Borrower);
+
+```
+
+8. Find the average account balance at each branch
+
+```sql
+SELECT branchName, AVG(balance) AS avg_balance
+FROM Account
+GROUP BY branchName;
+
+```
+
+9. Find no. of depositors at each branch.
+
+```sql
+SELECT branchName, COUNT(DISTINCT customerName) AS num_depositors
+FROM Account
+GROUP BY branchName;
+
+```
+
+10. Find name of Customer and city where customer name starts with Letter P.
+
+```sql
+SELECT customerName, city
+FROM Customer
+WHERE customerName LIKE 'P%';
+
+```
+
+11. Display distinct cities of branch.
+
+```sql
+SELECT DISTINCT city
+FROM Branch;
+
+```
+
+12. Find the branches where average account balance > 12000
+
+```sql
+SELECT branchName
+FROM Account
+GROUP BY branchName
+HAVING AVG(balance) > 12000;
+
+```
+
+13. Find number of tuples in customer relation.
+
+```sql
+SELECT COUNT(*) AS num_tuples
+FROM Customer;
+
+```
+
+14. Calculate total loan amount given by bank.
+
+```sql
+SELECT SUM(amount) AS total_loan_amount
+FROM Loan;
+
+```
+
+15. Delete all loans with loan amount between 1300 and 1500.
+
+```sql
+DELETE FROM Loan
+WHERE amount BETWEEN 1300 AND 1500;
+
+```
+
+16. Delete all tuples at every branch located in Nigdi.
+
+```sql
+DELETE FROM Account
+WHERE branchName IN (SELECT branchName FROM Branch WHERE city = 'Nigdi');
+
+```
+
+---