From the following tables write a SQL query to find the salespeople who deal the customers with more than one order

  • برمجة سي كيو ال sql

. From the following tables write a SQL query to find the salespeople who deal the customers with more than one order. Return salesman_id, name, city and commission.

Sample table: Salesman

salesman_id |    name    |   city   | commission 
-------------+------------+----------+------------
        5001 | James Hoog | New York |       0.15
        5002 | Nail Knite | Paris    |       0.13
        5005 | Pit Alex   | London   |       0.11
        5006 | Mc Lyon    | Paris    |       0.14
        5007 | Paul Adam  | Rome     |       0.13
        5003 | Lauson Hen | San Jose |       0.12
ord_no      purch_amt   ord_date    customer_id  salesman_id
----------  ----------  ----------  -----------  -----------
70001       150.5       2012-10-05  3005         5002
70009       270.65      2012-09-10  3001         5005
70002       65.26       2012-10-05  3002         5001
70004       110.5       2012-08-17  3009         5003
70007       948.5       2012-09-10  3005         5002
70005       2400.6      2012-07-27  3007         5001
70008       5760        2012-09-10  3002         5001
70010       1983.43     2012-10-10  3004         5006
70003       2480.4      2012-10-10  3009         5003
70012       250.45      2012-06-27  3008         5002
70011       75.29       2012-08-17  3003         5007
70013       3045.6      2012-04-25  3002         5001
 customer_id |   cust_name    |    city    | grade | salesman_id 
-------------+----------------+------------+-------+-------------
        3002 | Nick Rimando   | New York   |   100 |        5001
        3007 | Brad Davis     | New York   |   200 |        5001
        3005 | Graham Zusi    | California |   200 |        5002
        3008 | Julian Green   | London     |   300 |        5002
        3004 | Fabian Johnson | Paris      |   300 |        5006
        3009 | Geoff Cameron  | Berlin     |   100 |        5003
        3003 | Jozy Altidor   | Moscow     |   200 |        5007
        3001 | Brad Guzan     | London     |       |        5005

الأجوبة

SELECT * 
FROM salesman a 
WHERE EXISTS     
   (SELECT * FROM customer b     
    WHERE a.salesman_id=b.salesman_id     
	 AND 1<             
	     (SELECT COUNT (*)              
		  FROM orders             
		  WHERE orders.customer_id =            
		  b.customer_id));

Output of the Query:

salesman_id	name	city		commission
5001		James Hoog	New York	0.15
5002		Nail Knite	Paris		0.13
5003		Lauson Hen	San Jose	0.12
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أسئلة مشابهة

From the following tables, write a SQL query to find those salespeople who generated orders for their customers but not located in the same city
From the following tables, write a SQL query to find those salespeople who earned the maximum commission. Return ord_no, purch_amt, ord_date, and salesman_id
Write a SQL statement to make a report with customer name, city, order number, order date, order amount salesman name and commission
From the following tables write a SQL query to find the details of an order. Return ord_no, ord_date, purch_amt

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