The NOT Operator returns the results when the condition mentioned in the WHERE CLAUSE is not TRUE . The condition is matched and returns those values from the columns that are not true to the condition.
- Syntax of NOT Operator –
SELECT column1,column2,column3,...,columnN FROM table_name
WHERE NOT condition;
Here, as in the syntax shown, in the WHERE clause, we can add NOT Operator with the condition.
Demo Table –
Product Table
Category | Region | City | Country | Customer_ID | Customer_name |
Office Supplies | Central | Chicago | United States | SM-20950 | Suzanne McNair |
Technology | East | New York City | United States | AH-10465 | Amy Hunt |
Office Supplies | East | New York City | United States | AH-10465 | Amy Hunt |
Office Supplies | East | Dover | United States | EP-13915 | Emily Phan |
Office Supplies | East | Dover | United States | EP-13915 | Emily Phan |
Technology | West | Aurora | United States | TP-21565 | Tracy Poddar |
Office Supplies | West | Aurora | United States | TP-21565 | Tracy Poddar |
Office Supplies | East | Long Beach | United States | AR-10825 | Anthony Rawles |
Office Supplies | West | Pasadena | United States | HA-14920 | Helen Andreada |
Furniture | West | Pasadena | United States | HA-14920 | Helen Andreada |
Example – Consider the Product table of the Customer database where we don’t want to get those customer names that belong to the City of Chicago.
SELECT Category,Region,City,
Country,[Customer ID],[Customer Name]
WHERE NOT City = 'Chicago';
The output after executing the above statement is as shown –
Category | Region | City | Country | Customer_ID | Customer_name |
Technology | East | New York City | United States | AH-10465 | Amy Hunt |
Office Supplies | East | New York City | United States | AH-10465 | Amy Hunt |
Office Supplies | East | Dover | United States | EP-13915 | Emily Phan |
Office Supplies | East | Dover | United States | EP-13915 | Emily Phan |
Technology | West | Aurora | United States | TP-21565 | Tracy Poddar |
Office Supplies | West | Aurora | United States | TP-21565 | Tracy Poddar |
Office Supplies | East | Long Beach | United States | AR-10825 | Anthony Rawles |
Office Supplies | West | Pasadena | United States | HA-14920 | Helen Andreada |
Furniture | West | Pasadena | United States | HA-14920 | Helen Andreada |
Here is the result, we got only those customers who do not belong to CHICAGO. So clearly, the returned results show the condition is not TRUE.
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