and or 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

CREATE TABLE friends (
   id INTEGER,
   name TEXT,
   birthday DATE
);

INSERT INTO friends (id, name, birthday) 
VALUES (1, 'Jane Doe', '1990-05-30');


INSERT INTO friends(id , name , birthday)
VALUES(2 , 'APOORV' , '2000-2-2');



UPDATE friends
SET name = 'Jane Srivastava'
WHERE id = 1;

ALTER TABLE friends 
ADD COLUMN email TEXT; 


UPDATE friends 
SET email =  '203029@klsafjls'
where id  = 1; 

UPDATE friends 
SET email =  '203029@klsafjls'
where id  = 2;

DELETE FROM friends 
WHERE id = 1;


SELECT * 
FROM friends;

Example 3: sql where a or b

-- example
SELECT Id, ProductName, UnitPrice, Package
  FROM Product
 WHERE ProductName LIKE 'Cha_' OR ProductName LIKE 'Chan_'

Example 4: 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 5: 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';