Q:

From the following table, create a view to count number of the salesperson in each city

hamza
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2022-05-18
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. From the following table, create a view to count number of the salesperson in each city. Return city, number of salespersons.

 

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
Sql programming,
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hamza
2022-05-18
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CREATE VIEW citynum
AS SELECT city, COUNT (DISTINCT salesman_id)
FROM salesman
GROUP BY city;

output:

sqlpractice-# FROM citynum;
   city   | count
----------+-------
 London   |     1
 New York |     1
 Paris    |     2
 Rome     |     1
          |     1
(5 rows)

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