-----------------------SQL AND, OR, NOT OPERATORS------------------------------
AND: this operator displays a record if all conditions seperated by AND are true.
OR: this operator displays a record if any of the conditions seperated by OR is true.
NOT: this operator displays a record if the conditions is Not true.
(NOT) operator excluding given
For example:
Select last_name, job_id From Employees
Where "Not" job_id = 'ABC';
SELECT column1, column2, ...
FROM table_name
WHERE condition1 AND condition2 AND condition3 ...;
///////
SELECT column1, column2, ...
FROM table_name
WHERE condition1 OR condition2 OR condition3 ...;