SQL

sql OR

SELECT * FROM employees WHERE dept='sales' OR salary>=25000; 

sql or

Used alongside WHERE to include data when either condition is true.
Example: Returns users that live in either Sheffield or Manchester.
SELECT * FROM users
WHERE city = 'Sheffield' OR 'Manchester';

sql and or

AND (
  f.termination_date IS NULL
  OR 
  f.termination_date > CURRENT_DATE
)

SQL OR Operator

SELECT first_name, last_name
FROM Customers
WHERE country = 'USA' OR last_name = 'Doe';