or operator in sql code example

Example 1: 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';

Example 2: sql and

/* AND is a operator that allows you to combine two conditions
Both conditions must be true for the row to b e included in the result set */
SELECT column_name(s)
FROM table_name
WHERE column_1 = value_1
AND column_2 = value_2;

Example 3: sql and

Used to join separate conditions within a WHERE clause.
Example: Returns events located in London, United Kingdom
SELECT * FROM events
WHERE host_country='United Kingdom' AND host_
city='London';

Example 4: logical operators in sql

LOGICAL OPERATORS?
ALL	    (TRUE if all of the subquery values meet the condition)	
AND	    (TRUE if all the conditions separated by AND is TRUE)	
ANY	    (TRUE if any of the subquery values meet the condition)	
BETWEEN	(TRUE if the operand is within the range of comparisons)	
EXISTS	(TRUE if the subquery returns one or more records)
IN	    TRUE if the operand is equal to one of a list of expressions)	
LIKE	(TRUE if the operand matches a pattern)	
NOT	    (Displays a record if the condition(s) is NOT TRUE)	
OR	    (TRUE if any of the conditions separated by OR is TRUE)	
SOME	(TRUE if any of the subquery values meet the condition)

Example 5: what is in operator in sql

(IN) operator in sql like "OR" operator
For example: 
Select * From employees
Where department_id "IN" (60,90);