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PostgreSQL - NOT Operator



The PostgreSQL NOT Operator is used to display a record where the specified condition is not true.

Syntax

The syntax for using NOT operator in PostgreSQL is given below:

SELECT column1, column2, column3, ...
FROM table_name
WHERE NOT condition;

Example:

Consider a database containing a table called Employee with the following records:

EmpIDNameCityAgeSalary
1JohnLondon253000
2MarryNew York242750
3JoParis272800
4KimAmsterdam303100
5RameshNew Delhi283000
6HuangBeijing282800

  • To select all records of the Employee table where City is NOT "New Delhi", the query is given below.

    SELECT * FROM Employee
    WHERE NOT City = 'New Delhi';
    

    This will produce the result as shown below:

    EmpIDNameCityAgeSalary
    1JohnLondon253000
    2MarryNew York242750
    3JoParis272800
    4KimAmsterdam303100
    6HuangBeijing282800

❮ PostgreSQL - Operators