NOT condition in PostgreSQL

PostgreSQL NOT
To filter the results, the PostgreSQL NOT condition is used with SELECT, INSERT, UPDATE and DELETE statements to negate a condition.

Syntax:

NOT condition;  

Parameters:
condition: It is used to specify the conditions to negate.

Example: Using NOT with LIKE condition.
Students table:

ID NAME AGE
1 Joy 5
2 Smiley 13
3 Happy 11
4 Tom 15
5 Jerry 10
6 Bruno  6
7 David  8

Query:

SELECT “AGE”  
FROM “STUDENTS”  
WHERE “NAME” NOT LIKE 'Dav%';

Output:

AGE
5
13
11
15
10