SQL Exercise: Neither New York residents nor with a grade above 100

SQL Boolean Operator Statement: Exercise-5 with Solution.

From the following table, write a SQL query to identify customers who are not from the city of 'New York' and do not have a grade value greater than 100. Return customer_id, cust_name, city, grade, and salesman_id..

Sample table: customer

 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

Sample Solution :

-- This query selects all columns from the 'customer' table.
SELECT *
-- Specifies the table from which to retrieve the data (in this case, 'customer').
FROM customer
-- Filters the rows to only include those where neither the 'city' column has the value 'New York'
-- nor the 'grade' column has a value greater than 100.
WHERE NOT (city = 'New York' OR grade > 100);

Output of the Query:

customer_id	cust_name	city	grade	salesman_id
3009		Geoff Cameron	Berlin	100	5003

Code Explanation:

The said SQL query that is selecting all columns (*) from the 'customer' table where NOT (the value of the "city" column is 'New York' OR the value of the "grade" column is greater than 100).
In this query, all rows from the "customer" table that do not match either of these conditions will be returned. It will return all the rows where city is not 'New York' and also the rows where the grade is less than or equal to 100.

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Practice Online

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